VAR-201003-0261

Vulnerability from variot - Updated: 2025-04-11 23:12

Unspecified vulnerability in Cisco IOS 12.4, when NAT SCCP fragmentation support is enabled, allows remote attackers to cause a denial of service (device reload) via crafted Skinny Client Control Protocol (SCCP) packets, aka Bug ID CSCsy09250. The problem is Bug ID : CSCsy09250 It is a problem.Service disruption by a third party (DoS) There is a possibility of being put into a state. Cisco IOS is prone to a remote denial-of-service vulnerability. An attacker can exploit this issue to cause an affected device to reload, denying service to legitimate users. This issue is being tracked by Cisco Bug ID CSCsy09250.http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCsq24002.

SOLUTION: Update to the fixed version (please see the vendor's advisories for details).

PROVIDED AND/OR DISCOVERED BY: Reported by the vendor.

ORIGINAL ADVISORY: Cisco: http://www.cisco.com/warp/public/707/cisco-sa-20100324-sccp.shtml


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.

Cisco has released free software updates that address this vulnerability. A workaround that mitigates this vulnerability is available.

This advisory is posted at:

http://www.cisco.com/warp/public/707/cisco-sa-20100324-sccp.shtml

Note: The March 24, 2010, Cisco IOS Software Security Advisory bundled publication includes seven Security Advisories. Each advisory lists the releases that correct the vulnerability or vulnerabilities detailed in the advisory. The table at the following URL lists releases that correct all Cisco IOS Software vulnerabilities that have been published on March 24, 2010, or earlier:

http://www.cisco.com/warp/public/707/cisco-sa-20100324-bundle.shtml

Individual publication links are in "Cisco Event Response: Semiannual Cisco IOS Software Security Advisory Bundled Publication" at the following link:

http://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html

Affected Products

Vulnerable Products +------------------

This security advisory applies to all Cisco products that run Cisco IOS Software configured for Network Address Translation (NAT) and that support the NAT SCCP Fragmentation Support feature.

To verify if NAT is enabled on a Cisco IOS device, log into the device and issue the command "show ip nat statistics". The following example shows a device configured with NAT:

Router# show ip nat statistics
Total translations: 2 (0 static, 2 dynamic; 0 extended)
Outside interfaces: Serial0
Inside interfaces: Ethernet1
Hits: 135  Misses: 5
Expired translations: 2
Dynamic mappings:
-- Inside Source
access-list 1 pool mypool refcount 2
 pool mypool: netmask 255.255.255.0
        start 192.168.10.1 end 192.168.10.254
        type generic, total addresses 14, allocated 2 (14%), misses 0

You can also use the "show running-config | include ip nat" command to verify if NAT has been enabled on the device.

In NAT traditional configurations, the term "inside" refers to those networks that will be translated. Inside this domain, hosts will have addresses in one address space, while on the "outside", they will appear to have addresses in another address space when NAT is configured. The first address space is referred to as the local address space and the second is referred to as the global address space. The "ip nat inside" and "ip nat outside" interface commands must be present on the corresponding router interfaces in order for NAT to be enabled.

The NAT Virtual Interface (NVI) feature removes the requirement to configure an interface as either NAT inside or NAT outside. If the device is configured for NVI, you can use the show ip nat nvi statistics command in user EXEC or privileged EXEC mode, as shown in the following example.

Router# show ip nat nvi statistics

Total active translations: 0 (0 static, 0 dynamic; 0 extended) NAT Enabled interfaces:
Hits: 0  Misses: 0
CEF Translated packets: 0, CEF Punted packets: 0 Expired translations: 0 Dynamic mappings:
-- Inside Source
[Id: 1] access-list 1 pool pool1 refcount 1213 pool pool1: netmask 255.255.255.0
         start 192.168.1.10 end 192.168.1.253
         start 192.168.2.10 end 192.168.2.253
         start 192.168.3.10 end 192.168.3.253
         start 192.168.4.10 end 192.168.4.253
         type generic, total addresses 976, allocated 222 (22%), misses 0

!---output truncated

In order to determine the software that is running on a Cisco IOS product, log in to the device and issue the "show version" command to display the system banner. Cisco IOS software identifies itself as "Internetwork Operating System Software" or simply "IOS." On the next line of output, the image name displays between parentheses, followed by "Version" and the Cisco IOS release name. Other Cisco devices do not have the show version command or give different output.

router>show version
Cisco IOS Software, 7200 Software (C7200-ADVSECURITYK9-M), Version 12.4(6)T2, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2006 by Cisco Systems, Inc. 
Compiled Tue 16-May-06 16:09 by kellythw

!---output truncated

Products Confirmed Not Vulnerable +--------------------------------

Cisco IOS XR Software and IOS XE Software are not affected by this vulnerability.

Cisco IOS devices not explicitly configured for NAT are not vulnerable.

No other Cisco products are currently known to be affected by this vulnerability.

Details

The Skinny Client Control Protocol (SCCP) enables voice communication between an SCCP client and a Call Manager (CM). Typically, the CM provides service to the SCCP clients on TCP Port 2000 by default. Initially, an SCCP client connects to the CM by establishing a TCP connection; the client will also establish a TCP connection with a secondary CM, if available.

The NAT SCCP Fragmentation Support feature enables the Skinny Application Layer Gateway (ALG) to reassemble skinny control messages. Since this feature was introduced in Cisco IOS version 12.4 (6)T, SCCP payloads requiring reassembly and NAT are no longer dropped.

Vulnerability Scoring Details

Cisco has provided scores for the vulnerability in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this Security Advisory is done in accordance with CVSS version 2.0.

CVSS is a standards-based scoring method that conveys vulnerability severity and helps determine urgency and priority of response.

Cisco has provided a base and temporal score. Customers can then compute environmental scores to assist in determining the impact of the vulnerability in individual networks.

Cisco has provided an FAQ to answer additional questions regarding CVSS at:

http://www.cisco.com/web/about/security/intelligence/cvss-qandas.html

Cisco has also provided a CVSS calculator to help compute the environmental impact for individual networks at:

http://intellishield.cisco.com/security/alertmanager/cvss

CSCsy09250 - Bus error and crash when crafted packet is sent to device

CVSS Base Score - 7.8

Access Vector - Network Access Complexity - Low Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete

CVSS Temporal Score - 6.4

Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed

Impact

Successful exploitation of this vulnerability may cause the affected device to reload. Repeated exploitation will result in a denial of service (DoS) condition.

Software Versions and Fixes

When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.

In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.

Each row of the Cisco IOS software table (below) names a Cisco IOS release train. If a given release train is vulnerable, then the earliest possible releases that contain the fix (along with the anticipated date of availability for each, if applicable) are listed in the "First Fixed Release" column of the table. The "Bundle First Fixed Release" column indicates the earliest possible releases which have fixes for all the published vulnerabilities in this Cisco IOS Security Advisory bundled publication. Cisco recommends upgrading to the latest available release where possible.

+--------------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |------------+-------------------------------------------------------| | Affected | | First Fixed Release for | | 12.0-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |--------------------------------------------------------------------| | There are no affected 12.0 based releases | |--------------------------------------------------------------------| | Affected | | First Fixed Release for | | 12.1-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |--------------------------------------------------------------------| | There are no affected 12.1 based releases | |--------------------------------------------------------------------| | Affected | | First Fixed Release for | | 12.2-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |--------------------------------------------------------------------| | There are no affected 12.2 based releases | |--------------------------------------------------------------------| | Affected | | First Fixed Release for | | 12.3-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |--------------------------------------------------------------------| | There are no affected 12.3 based releases | |--------------------------------------------------------------------| | Affected | | First Fixed Release for | | 12.4-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |------------+---------------------------+---------------------------| | | | 12.4(25c) | | 12.4 | Not Vulnerable | | | | | 15.0(1)M1 | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4GC | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | | support organization per | | 12.4JA | Not Vulnerable | the instructions in | | | | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | | support organization per | | 12.4JDA | Not Vulnerable | the instructions in | | | | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | | support organization per | | 12.4JDC | Not Vulnerable | the instructions in | | | | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | 12.4JDD | Not Vulnerable | 12.4(10b)JDD1 | |------------+---------------------------+---------------------------| | 12.4JHA | Not Vulnerable | Not Vulnerable | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | | support organization per | | 12.4JK | Not Vulnerable | the instructions in | | | | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | | support organization per | | 12.4JL | Not Vulnerable | the instructions in | | | | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | | | Releases prior to 12.4 | | 12.4JMA | Not Vulnerable | (3g)JMA2 are vulnerable, | | | | release 12.4(3g)JMA2 and | | | | later are not vulnerable | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | | support organization per | | 12.4JMB | Not Vulnerable | the instructions in | | | | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | 12.4JX | Not Vulnerable | Vulnerable; first fixed | | | | in 12.4JA | |------------+---------------------------+---------------------------| | 12.4MD | 12.4(11)MD10 | 12.4(24)MD | |------------+---------------------------+---------------------------| | 12.4MDA | 12.4(22)MDA2 | 12.4(22)MDA2 | |------------+---------------------------+---------------------------| | | | Vulnerable; Contact your | | | Releases up to and | support organization per | | 12.4MR | including 12.4(4)MR1 are | the instructions in | | | not vulnerable. | Obtaining Fixed Software | | | | section of this advisory | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4SW | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | 12.4(20)T4 | 12.4(15)T12 | | | | | | | 12.4(22)T3 | 12.4(20)T5 | | 12.4T | | | | | 12.4(15)T10 | 12.4(24)T3; Available on | | | | 26-MAR-10 | | | 12.4(24)T2 | | | | | 12.4(22)T4 | |------------+---------------------------+---------------------------| | | | Vulnerable; migrate to | | 12.4XA | Not Vulnerable | any release in 15.0M or a | | | | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | | Vulnerable; migrate to | | 12.4XB | Not Vulnerable | any release in 15.0M or a | | | | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XC | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | | Vulnerable; migrate to | | 12.4XD | Not Vulnerable | any release in 15.0M or a | | | | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XE | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XF | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XG | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XJ | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XK | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4XL | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XM | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4XN | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4XP | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XQ | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | 12.4XR | 12.4(22)XR3 | 12.4(22)XR3 | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XT | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4XV | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XW | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XY | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4XZ | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; migrate to | Vulnerable; migrate to | | 12.4YA | any release in 15.0M or a | any release in 15.0M or a | | | fixed 12.4T release. | fixed 12.4 release. | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4YB | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4YD | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | | | 12.4(22)YE2 | | 12.4YE | 12.4(22)YE2 | | | | | 12.4(24)YE | |------------+---------------------------+---------------------------| | | Vulnerable; Contact your | Vulnerable; Contact your | | | support organization per | support organization per | | 12.4YG | the instructions in | the instructions in | | | Obtaining Fixed Software | Obtaining Fixed Software | | | section of this advisory | section of this advisory | |------------+---------------------------+---------------------------| | Affected | | First Fixed Release for | | 15.0-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |--------------------------------------------------------------------| | There are no affected 15.0 based releases | |--------------------------------------------------------------------| | Affected | | First Fixed Release for | | 15.1-Based | First Fixed Release for | all Advisories in 24 | | Releases | this Advisory | March 2010 Bundle | | | | Publication | |--------------------------------------------------------------------| | There are no affected 15.1 based releases | +--------------------------------------------------------------------+

Cisco IOS-XE Software +--------------------

+-------------------------------------------------------------------+ | IOS-XE Release | First Fixed Release | |----------------------------+--------------------------------------| | 2.1.x | Not Vulnerable | |----------------------------+--------------------------------------| | 2.2.x | Not Vulnerable | |----------------------------+--------------------------------------| | 2.3.x | Not Vulnerable | |----------------------------+--------------------------------------| | 2.4.x | Not Vulnerable | |----------------------------+--------------------------------------| | 2.5.x | Not Vulnerable | |----------------------------+--------------------------------------| | 2.6.x | Not Vulnerable | +-------------------------------------------------------------------+

Workarounds

As workaround, an administrator can disable SCCP NAT support using the "no ip nat service skinny tcp port 2000" command, as shown in the following example:

Router(config)# no ip nat service skinny tcp port 2000

Note: If your Cisco CallManager is using a TCP port for skinny signaling different from the default port (2000), you need to adjust this command accordingly.

Caution: This workaround is only feasible on networks where SCCP traffic does not need to be processed by NAT. Please confirm before implementing this workaround.

Obtaining Fixed Software

Cisco has released free software updates that address this vulnerability. Prior to deploying software, customers should consult their maintenance provider or check the software for feature set compatibility and known issues specific to their environment.

Customers may only install and expect support for the feature sets they have purchased. By installing, downloading, accessing or otherwise using such software upgrades, customers agree to be bound by the terms of Cisco's software license terms found at:

http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html

or as otherwise set forth at Cisco.com Downloads at:

http://www.cisco.com/public/sw-center/sw-usingswc.shtml

Do not contact psirt@cisco.com or security-alert@cisco.com for software upgrades.

Customers with Service Contracts +-------------------------------

Customers with contracts should obtain upgraded software through their regular update channels. For most customers, this means that upgrades should be obtained through the Software Center on Cisco's worldwide website at http://www.cisco.com.

Customers using Third Party Support Organizations +------------------------------------------------

Customers whose Cisco products are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers should contact that support organization for guidance and assistance with the appropriate course of action in regards to this advisory.

The effectiveness of any workaround or fix is dependent on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Due to the variety of affected products and releases, customers should consult with their service provider or support organization to ensure any applied workaround or fix is the most appropriate for use in the intended network before it is deployed.

Customers without Service Contracts +----------------------------------

Customers who purchase direct from Cisco but do not hold a Cisco service contract, and customers who purchase through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should acquire upgrades by contacting the Cisco Technical Assistance Center (TAC). TAC contacts are as follows.

  • +1 800 553 2447 (toll free from within North America)
  • +1 408 526 7209 (toll call from anywhere in the world)
  • e-mail: tac@cisco.com

Customers should have their product serial number available and be prepared to give the URL of this notice as evidence of entitlement to a free upgrade. Free upgrades for non-contract customers must be requested through the TAC.

Refer to:

http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html

for additional TAC contact information, including localized telephone numbers, and instructions and e-mail addresses for use in various languages.

Exploitation and Public Announcements

The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was found during the resolution of customer service requests.

Status of this Notice: FINAL

THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.

A stand-alone copy or Paraphrase of the text of this document that omits the distribution URL in the following section is an uncontrolled copy, and may lack important information or contain factual errors.

Distribution

This advisory is posted on Cisco's worldwide website at:

http://www.cisco.com/warp/public/707/cisco-sa-20100324-sccp.shtml

In addition to worldwide web posting, a text version of this notice is clear-signed with the Cisco PSIRT PGP key and is posted to the following e-mail and Usenet news recipients.

  • cust-security-announce@cisco.com
  • first-bulletins@lists.first.org
  • bugtraq@securityfocus.com
  • vulnwatch@vulnwatch.org
  • cisco@spot.colorado.edu
  • cisco-nsp@puck.nether.net
  • full-disclosure@lists.grok.org.uk
  • comp.dcom.sys.cisco@newsgate.cisco.com

Future updates of this advisory, if any, will be placed on Cisco's worldwide website, but may or may not be actively announced on mailing lists or newsgroups. Users concerned about this problem are encouraged to check the above URL for any updates.

Revision History

+-------------------------------------------------------------------+ | Revision 1.0 | 2010-March-24 | Initial public release | +-------------------------------------------------------------------+

Cisco Security Procedures

Complete information on reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco, is available on Cisco's worldwide website at:

http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html

This includes instructions for press inquiries regarding Cisco security notices. All Cisco security advisories are available at:

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Show details on source website

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    "data": "Unspecified vulnerability in Cisco IOS 12.4, when NAT SCCP fragmentation support is enabled, allows remote attackers to cause a denial of service (device reload) via crafted Skinny Client Control Protocol (SCCP) packets, aka Bug ID CSCsy09250. The problem is Bug ID : CSCsy09250 It is a problem.Service disruption by a third party (DoS) There is a possibility of being put into a state. Cisco IOS is prone to a remote denial-of-service vulnerability. \nAn attacker can exploit this issue to cause an affected device to reload, denying service to legitimate users. \nThis issue is being tracked by Cisco Bug ID CSCsy09250.http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails\u0026amp;bugId=CSCsq24002. \n\nSOLUTION:\nUpdate to the fixed version (please see the vendor\u0027s advisories for\ndetails). \n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor. \n\nORIGINAL ADVISORY:\nCisco:\nhttp://www.cisco.com/warp/public/707/cisco-sa-20100324-sccp.shtml\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\nprivate users keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/advisories/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/advisories/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n. \n\nCisco has released free software updates that address this\nvulnerability. A workaround that mitigates this vulnerability is\navailable. \n\nThis advisory is posted at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20100324-sccp.shtml\n\nNote: The March 24, 2010, Cisco IOS Software Security Advisory\nbundled publication includes seven Security Advisories. Each\nadvisory lists the releases that correct the vulnerability or\nvulnerabilities detailed in the advisory. The table at the following\nURL lists releases that correct all Cisco IOS Software\nvulnerabilities that have been published on March 24, 2010, or\nearlier:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20100324-bundle.shtml\n\nIndividual publication links are in \"Cisco Event Response: Semiannual\nCisco IOS Software Security Advisory Bundled Publication\" at the\nfollowing link:\n\nhttp://www.cisco.com/web/about/security/intelligence/Cisco_ERP_mar10.html\n\nAffected Products\n=================\n\nVulnerable Products\n+------------------\n\nThis security advisory applies to all Cisco products that run Cisco\nIOS Software configured for Network Address Translation (NAT) and\nthat support the NAT SCCP Fragmentation Support feature. \n\nTo verify if NAT is enabled on a Cisco IOS device, log into the\ndevice and issue the command \"show ip nat statistics\". The following\nexample shows a device configured with NAT:\n\n    Router# show ip nat statistics\n    Total translations: 2 (0 static, 2 dynamic; 0 extended)\n    Outside interfaces: Serial0\n    Inside interfaces: Ethernet1\n    Hits: 135  Misses: 5\n    Expired translations: 2\n    Dynamic mappings:\n    -- Inside Source\n    access-list 1 pool mypool refcount 2\n     pool mypool: netmask 255.255.255.0\n            start 192.168.10.1 end 192.168.10.254\n            type generic, total addresses 14, allocated 2 (14%), misses 0\n\nYou can also use the \"show running-config | include ip nat\" command to\nverify if NAT has been enabled on the device. \n\nIn NAT traditional configurations, the term \"inside\" refers to those\nnetworks that will be translated. Inside this domain, hosts will have\naddresses in one address space, while on the \"outside\", they will\nappear to have addresses in another address space when NAT is\nconfigured. The first address space is referred to as the local\naddress space and the second is referred to as the global address\nspace. The \"ip nat inside\" and \"ip nat outside\" interface commands must\nbe present on the corresponding router interfaces in order for NAT to\nbe enabled. \n\nThe NAT Virtual Interface (NVI) feature removes the requirement to\nconfigure an interface as either NAT inside or NAT outside. If the\ndevice is configured for NVI, you can use the show ip nat nvi\nstatistics command in user EXEC or privileged EXEC mode, as shown in\nthe following example. \n\n    Router# show ip nat nvi statistics\n    \n    Total active translations: 0 (0 static, 0 dynamic; 0 extended) NAT Enabled interfaces:\n    Hits: 0  Misses: 0\n    CEF Translated packets: 0, CEF Punted packets: 0 Expired translations: 0 Dynamic mappings:\n    -- Inside Source\n    [Id: 1] access-list 1 pool pool1 refcount 1213 pool pool1: netmask 255.255.255.0\n             start 192.168.1.10 end 192.168.1.253\n             start 192.168.2.10 end 192.168.2.253\n             start 192.168.3.10 end 192.168.3.253\n             start 192.168.4.10 end 192.168.4.253\n             type generic, total addresses 976, allocated 222 (22%), misses 0  \n    \n    !---output truncated\n    \nIn order to determine the software that is running on a Cisco IOS\nproduct, log in to the device and issue the \"show version\" command to\ndisplay the system banner. Cisco IOS software identifies itself as\n\"Internetwork Operating System Software\" or simply \"IOS.\" On the next\nline of output, the image name displays between parentheses, followed\nby \"Version\" and the Cisco IOS release name. Other Cisco devices do\nnot have the show version command or give different output. \n\n    router\u003eshow version\n    Cisco IOS Software, 7200 Software (C7200-ADVSECURITYK9-M), Version 12.4(6)T2, RELEASE SOFTWARE (fc1)\n    Technical Support: http://www.cisco.com/techsupport\n    Copyright (c) 1986-2006 by Cisco Systems, Inc. \n    Compiled Tue 16-May-06 16:09 by kellythw\n    \n    !---output truncated\n    \nProducts Confirmed Not Vulnerable\n+--------------------------------\n\nCisco IOS XR Software and IOS XE Software are not affected by this\nvulnerability. \n\nCisco IOS devices not explicitly configured for NAT are not\nvulnerable. \n\nNo other Cisco products are currently known to be affected by this\nvulnerability. \n\nDetails\n=======\n\nThe Skinny Client Control Protocol (SCCP) enables voice communication\nbetween an SCCP client and a Call Manager (CM). Typically, the CM\nprovides service to the SCCP clients on TCP Port 2000 by default. \nInitially, an SCCP client connects to the CM by establishing a TCP\nconnection; the client will also establish a TCP connection with a\nsecondary CM, if available. \n\nThe NAT SCCP Fragmentation Support feature enables the Skinny\nApplication Layer Gateway (ALG) to reassemble skinny control\nmessages. Since this feature was introduced in Cisco IOS version 12.4\n(6)T, SCCP payloads requiring reassembly and NAT are no longer\ndropped. \n\nVulnerability Scoring Details\n=============================\n\nCisco has provided scores for the vulnerability in this advisory\nbased on the Common Vulnerability Scoring System (CVSS). The CVSS\nscoring in this Security Advisory is done in accordance with CVSS\nversion 2.0. \n\nCVSS is a standards-based scoring method that conveys vulnerability\nseverity and helps determine urgency and priority of response. \n\nCisco has provided a base and temporal score. Customers can then\ncompute environmental scores to assist in determining the impact of\nthe vulnerability in individual networks. \n\nCisco has provided an FAQ to answer additional questions regarding\nCVSS at:\n\nhttp://www.cisco.com/web/about/security/intelligence/cvss-qandas.html\n\nCisco has also provided a CVSS calculator to help compute the\nenvironmental impact for individual networks at:\n\nhttp://intellishield.cisco.com/security/alertmanager/cvss\n\nCSCsy09250 - Bus error and crash when crafted packet is sent to device\n\nCVSS Base Score - 7.8\n\nAccess Vector           - Network\nAccess Complexity       - Low\nAuthentication          - None\nConfidentiality Impact  - None\nIntegrity Impact        - None\nAvailability Impact     - Complete\n\nCVSS Temporal Score - 6.4\n\nExploitability          - Functional\nRemediation Level       - Official-Fix\nReport Confidence       - Confirmed\n\nImpact\n======\n\nSuccessful exploitation of this vulnerability may cause the affected\ndevice to reload. Repeated exploitation will result in a denial of\nservice (DoS) condition. \n\nSoftware Versions and Fixes\n===========================\n\nWhen considering software upgrades, also consult\nhttp://www.cisco.com/go/psirt and any subsequent advisories to\ndetermine exposure and a complete upgrade solution. \n\nIn all cases, customers should exercise caution to be certain the\ndevices to be upgraded contain sufficient memory and that current\nhardware and software configurations will continue to be supported\nproperly by the new release. If the information is not clear, contact\nthe Cisco Technical Assistance Center (TAC) or your contracted\nmaintenance provider for assistance. \n\nEach row of the Cisco IOS software table (below) names a Cisco IOS\nrelease train. If a given release train is vulnerable, then the\nearliest possible releases that contain the fix (along with the\nanticipated date of availability for each, if applicable) are listed\nin the \"First Fixed Release\" column of the table. The \"Bundle First\nFixed Release\" column indicates the earliest possible releases which\nhave fixes for all the published vulnerabilities in this Cisco IOS\nSecurity Advisory bundled publication. Cisco recommends upgrading to\nthe latest available release where possible. \n\n+--------------------------------------------------------------------+\n|   Major    |           Availability of Repaired Releases           |\n|  Release   |                                                       |\n|------------+-------------------------------------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 12.0-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|--------------------------------------------------------------------|\n| There are no affected 12.0 based releases                          |\n|--------------------------------------------------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 12.1-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|--------------------------------------------------------------------|\n| There are no affected 12.1 based releases                          |\n|--------------------------------------------------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 12.2-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|--------------------------------------------------------------------|\n| There are no affected 12.2 based releases                          |\n|--------------------------------------------------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 12.3-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|--------------------------------------------------------------------|\n| There are no affected 12.3 based releases                          |\n|--------------------------------------------------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 12.4-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|------------+---------------------------+---------------------------|\n|            |                           | 12.4(25c)                 |\n| 12.4       | Not Vulnerable            |                           |\n|            |                           | 15.0(1)M1                 |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4GC     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            |                           | support organization per  |\n| 12.4JA     | Not Vulnerable            | the instructions in       |\n|            |                           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            |                           | support organization per  |\n| 12.4JDA    | Not Vulnerable            | the instructions in       |\n|            |                           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            |                           | support organization per  |\n| 12.4JDC    | Not Vulnerable            | the instructions in       |\n|            |                           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n| 12.4JDD    | Not Vulnerable            | 12.4(10b)JDD1             |\n|------------+---------------------------+---------------------------|\n| 12.4JHA    | Not Vulnerable            | Not Vulnerable            |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            |                           | support organization per  |\n| 12.4JK     | Not Vulnerable            | the instructions in       |\n|            |                           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            |                           | support organization per  |\n| 12.4JL     | Not Vulnerable            | the instructions in       |\n|            |                           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            |                           | Releases prior to 12.4    |\n| 12.4JMA    | Not Vulnerable            | (3g)JMA2 are vulnerable,  |\n|            |                           | release 12.4(3g)JMA2 and  |\n|            |                           | later are not vulnerable  |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            |                           | support organization per  |\n| 12.4JMB    | Not Vulnerable            | the instructions in       |\n|            |                           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n| 12.4JX     | Not Vulnerable            | Vulnerable; first fixed   |\n|            |                           | in 12.4JA                 |\n|------------+---------------------------+---------------------------|\n| 12.4MD     | 12.4(11)MD10              | 12.4(24)MD                |\n|------------+---------------------------+---------------------------|\n| 12.4MDA    | 12.4(22)MDA2              | 12.4(22)MDA2              |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; Contact your  |\n|            | Releases up to and        | support organization per  |\n| 12.4MR     | including 12.4(4)MR1 are  | the instructions in       |\n|            | not vulnerable.           | Obtaining Fixed Software  |\n|            |                           | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4SW     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | 12.4(20)T4                | 12.4(15)T12               |\n|            |                           |                           |\n|            | 12.4(22)T3                | 12.4(20)T5                |\n| 12.4T      |                           |                           |\n|            | 12.4(15)T10               | 12.4(24)T3; Available on  |\n|            |                           | 26-MAR-10                 |\n|            | 12.4(24)T2                |                           |\n|            |                           | 12.4(22)T4                |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; migrate to    |\n| 12.4XA     | Not Vulnerable            | any release in 15.0M or a |\n|            |                           | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; migrate to    |\n| 12.4XB     | Not Vulnerable            | any release in 15.0M or a |\n|            |                           | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XC     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            |                           | Vulnerable; migrate to    |\n| 12.4XD     | Not Vulnerable            | any release in 15.0M or a |\n|            |                           | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XE     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XF     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XG     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XJ     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XK     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4XL     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XM     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4XN     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4XP     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XQ     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n| 12.4XR     | 12.4(22)XR3               | 12.4(22)XR3               |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XT     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4XV     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XW     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XY     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4XZ     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; migrate to    | Vulnerable; migrate to    |\n| 12.4YA     | any release in 15.0M or a | any release in 15.0M or a |\n|            | fixed 12.4T release.      | fixed 12.4 release.       |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4YB     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4YD     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|            |                           | 12.4(22)YE2               |\n| 12.4YE     | 12.4(22)YE2               |                           |\n|            |                           | 12.4(24)YE                |\n|------------+---------------------------+---------------------------|\n|            | Vulnerable; Contact your  | Vulnerable; Contact your  |\n|            | support organization per  | support organization per  |\n| 12.4YG     | the instructions in       | the instructions in       |\n|            | Obtaining Fixed Software  | Obtaining Fixed Software  |\n|            | section of this advisory  | section of this advisory  |\n|------------+---------------------------+---------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 15.0-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|--------------------------------------------------------------------|\n| There are no affected 15.0 based releases                          |\n|--------------------------------------------------------------------|\n|  Affected  |                           |  First Fixed Release for  |\n| 15.1-Based |  First Fixed Release for  |   all Advisories in 24    |\n|  Releases  |       this Advisory       |     March 2010 Bundle     |\n|            |                           |        Publication        |\n|--------------------------------------------------------------------|\n| There are no affected 15.1 based releases                          |\n+--------------------------------------------------------------------+\n\nCisco IOS-XE Software\n+--------------------\n\n+-------------------------------------------------------------------+\n|       IOS-XE Release       |         First Fixed Release          |\n|----------------------------+--------------------------------------|\n| 2.1.x                      | Not Vulnerable                       |\n|----------------------------+--------------------------------------|\n| 2.2.x                      | Not Vulnerable                       |\n|----------------------------+--------------------------------------|\n| 2.3.x                      | Not Vulnerable                       |\n|----------------------------+--------------------------------------|\n| 2.4.x                      | Not Vulnerable                       |\n|----------------------------+--------------------------------------|\n| 2.5.x                      | Not Vulnerable                       |\n|----------------------------+--------------------------------------|\n| 2.6.x                      | Not Vulnerable                       |\n+-------------------------------------------------------------------+\n\nWorkarounds\n===========\n\nAs workaround, an administrator can disable SCCP NAT support using\nthe \"no ip nat service skinny tcp port 2000\" command, as shown in the\nfollowing example:\n\n    Router(config)# no ip nat service skinny tcp port 2000\n\nNote: If your Cisco CallManager is using a TCP port for skinny\nsignaling different from the default port (2000), you need to adjust\nthis command accordingly. \n\nCaution: This workaround is only feasible on networks where\nSCCP traffic does not need to be processed by NAT. Please confirm\nbefore implementing this workaround. \n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address this\nvulnerability. Prior to deploying software, customers should consult\ntheir maintenance provider or check the software for feature set\ncompatibility and known issues specific to their environment. \n\nCustomers may only install and expect support for the feature sets\nthey have purchased. By installing, downloading, accessing or\notherwise using such software upgrades, customers agree to be bound\nby the terms of Cisco\u0027s software license terms found at:\n\nhttp://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html\n\nor as otherwise set forth at Cisco.com Downloads at:\n\nhttp://www.cisco.com/public/sw-center/sw-usingswc.shtml\n\nDo not contact psirt@cisco.com or security-alert@cisco.com for\nsoftware upgrades. \n\nCustomers with Service Contracts\n+-------------------------------\n\nCustomers with contracts should obtain upgraded software through\ntheir regular update channels. For most customers, this means that\nupgrades should be obtained through the Software Center on Cisco\u0027s\nworldwide website at http://www.cisco.com. \n\nCustomers using Third Party Support Organizations\n+------------------------------------------------\n\nCustomers whose Cisco products are provided or maintained through\nprior or existing agreements with third-party support organizations,\nsuch as Cisco Partners, authorized resellers, or service providers\nshould contact that support organization for guidance and assistance\nwith the appropriate course of action in regards to this advisory. \n\nThe effectiveness of any workaround or fix is dependent on specific\ncustomer situations, such as product mix, network topology, traffic\nbehavior, and organizational mission. Due to the variety of affected\nproducts and releases, customers should consult with their service\nprovider or support organization to ensure any applied workaround or\nfix is the most appropriate for use in the intended network before it\nis deployed. \n\nCustomers without Service Contracts\n+----------------------------------\n\nCustomers who purchase direct from Cisco but do not hold a Cisco\nservice contract, and customers who purchase through third-party\nvendors but are unsuccessful in obtaining fixed software through\ntheir point of sale should acquire upgrades by contacting the Cisco\nTechnical Assistance Center (TAC). TAC contacts are as follows. \n\n  * +1 800 553 2447 (toll free from within North America)\n  * +1 408 526 7209 (toll call from anywhere in the world)\n  * e-mail: tac@cisco.com\n\nCustomers should have their product serial number available and be\nprepared to give the URL of this notice as evidence of entitlement to\na free upgrade. Free upgrades for non-contract customers must be\nrequested through the TAC. \n\nRefer to:\n\nhttp://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html\n\nfor additional TAC contact information, including localized telephone\nnumbers, and instructions and e-mail addresses for use in various\nlanguages. \n\nExploitation and Public Announcements\n=====================================\n\nThe Cisco PSIRT is not aware of any public announcements or malicious\nuse of the vulnerability described in this advisory. This\nvulnerability was found during the resolution of customer service\nrequests. \n\nStatus of this Notice: FINAL\n============================\n\nTHIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY\nKIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF\nMERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE\nINFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS\nAT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS\nDOCUMENT AT ANY TIME. \n\nA stand-alone copy or Paraphrase of the text of this document that\nomits the distribution URL in the following section is an\nuncontrolled copy, and may lack important information or contain\nfactual errors. \n\nDistribution\n============\n\nThis advisory is posted on Cisco\u0027s worldwide website at:\n\nhttp://www.cisco.com/warp/public/707/cisco-sa-20100324-sccp.shtml\n\nIn addition to worldwide web posting, a text version of this notice\nis clear-signed with the Cisco PSIRT PGP key and is posted to the\nfollowing e-mail and Usenet news recipients. \n\n  * cust-security-announce@cisco.com\n  * first-bulletins@lists.first.org\n  * bugtraq@securityfocus.com\n  * vulnwatch@vulnwatch.org\n  * cisco@spot.colorado.edu\n  * cisco-nsp@puck.nether.net\n  * full-disclosure@lists.grok.org.uk\n  * comp.dcom.sys.cisco@newsgate.cisco.com\n\nFuture updates of this advisory, if any, will be placed on Cisco\u0027s\nworldwide website, but may or may not be actively announced on\nmailing lists or newsgroups. Users concerned about this problem are\nencouraged to check the above URL for any updates. \n\nRevision History\n================\n\n+-------------------------------------------------------------------+\n| Revision 1.0    | 2010-March-24    | Initial public release       |\n+-------------------------------------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information on reporting security vulnerabilities in Cisco\nproducts, obtaining assistance with security incidents, and\nregistering to receive security information from Cisco, is available\non Cisco\u0027s worldwide website at:\n\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html\n\nThis includes instructions for press inquiries regarding Cisco security\nnotices. All Cisco security advisories are available at:\n\nhttp://www.cisco.com/go/psirt\n-----BEGIN PGP SIGNATURE-----\n\niD8DBQFLqO4X86n/Gc8U/uARArHuAKCNnTQkJtzQiDJ1RY0ERYFGDffpcwCdHruh\nU/8efv1qDpFghQLXNjqnSIg=\n=NuJi\n-----END PGP SIGNATURE-----\n\n_______________________________________________\nFull-Disclosure - We believe in it. \nCharter: http://lists.grok.org.uk/full-disclosure-charter.html\nHosted and sponsored by Secunia - http://secunia.com/\n",
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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