VAR-201203-0330

Vulnerability from variot - Updated: 2025-04-11 23:02

The MACE feature in Cisco IOS 15.1 and 15.2 allows remote attackers to cause a denial of service (device reload) via crafted transit traffic, aka Bug IDs CSCtq64987 and CSCtu57226. Cisco IOS is a popular Internet operating system. Cisco IOS is prone to multiple remote denial-of-service vulnerabilities. An attacker can exploit these issues to cause an affected device to leak memory or reload, denying service to legitimate users. These issues are being tracked by Cisco Bug IDs: CSCtt45381 CSCtq64987 CSCtu57226. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

Cisco Security Advisory: Multiple Vulnerabilities in Cisco IOS Software Traffic Optimization Features

Advisory ID: cisco-sa-20120328-mace

Revision 1.0

For Public Release 2012 March 28 16:00 UTC (GMT)

+--------------------------------------------------------------------

Summary

Cisco IOS Software contains a denial of service (DoS) vulnerability in the Wide Area Application Services (WAAS) Express feature that could allow an unauthenticated, remote attacker to cause the router to leak memory or to reload.

An attacker could exploit these vulnerabilities by sending transit traffic through a router configured with WAAS Express or MACE. Repeated exploits could allow a sustained DoS condition.

Cisco has released free software updates that address these vulnerabilities. This advisory is available at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-mace

Note: The March 28, 2012, Cisco IOS Software Security Advisory bundled publication includes nine Cisco Security Advisories. Each advisory lists the Cisco IOS Software releases that correct the vulnerability or vulnerabilities detailed in the advisory as well as the Cisco IOS Software releases that correct all vulnerabilities in the March 2012 bundled publication.

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

http://www.cisco.com/web/about/security/intelligence/ Cisco_ERP_mar12.html

Affected Products

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

Cisco devices that are running Cisco IOS Software are vulnerable when they are configured with the "mace enable" or "waas enable" interface configuration commands on one or more interfaces. Additional configuration is required for WAAS Express or MACE to be configured; more details follow.

Note: Cisco IOS Software is vulnerable only when configured for WAAS Express or MACE. Cisco IOS Software configured for WAAS, not WAAS Express, is not vulnerable.

For more information on WAAS Express, see http://www.cisco.com/en/US/products/ps11211/index.html. For more information about MACE, see http://www.cisco.com/en/US/prod/collateral/netmgtsw/ps11709/ps11671/guide_c07-664643.html.

To determine the Cisco IOS Software release that is running on a Cisco product, administrators can log in to the device and issue the "show version" command to display the system banner. Other Cisco devices do not have the "show version" command or may provide different output.

The following example identifies a Cisco product that is running Cisco IOS Software Release 15.0(1)M1 with an installed image name of C3900-UNIVERSALK9-M:

Router> show version Cisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1) Technical Support: http://www.cisco.com/techsupport Copyright (c) 1986-2009 by Cisco Systems, Inc. Compiled Wed 02-Dec-09 17:17 by prod_rel_team

!--- output truncated

Additional information about Cisco IOS Software release naming conventions is available in "White Paper: Cisco IOS and NX-OS Software Reference Guide" at http://www.cisco.com/web/about/security/intelligence/ios-ref.html.

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

No other Cisco products are currently known to be affected by these vulnerabilities.

Details

The Cisco Wide Area Application Services (WAAS) Express feature allows optimization of the WAN bandwidth required to access centrally located applications. WAAS Express allows the traffic to be optimized by a Cisco Integrated Services Router (ISR G2), with no other devices required.

The Cisco Measurement, Aggregation, and Correlation Engine (MACE) is a Cisco IOS feature that is used for measurement and analysis of network traffic. The feature may be used with WAAS Express to give details of optimized traffic or used by itself to help measure application performance. This vulnerability is documented in Cisco bug ID CSCtt45381 and has been assigned Common Vulnerabilities and Exposures (CVE) ID CVE-2012-1314.

An attacker could exploit these vulnerabilities by sending transit traffic through a router configured with WAAS Express or MACE. Repeated exploits could allow a sustained DoS condition.

A configuration similar to one or more of the following configuration excerpts will exist if WAAS Express or MACE is configured on the router.

The following example shows a partial WAAS Express configuration:

parameter-map type waas waas_global tfo optimize full class-map type waas match-any HTTP match tcp destination port 80 class-map type waas match-any NNTP match tcp destination port 119 ... policy-map type waas waas_global class HTTP optimize tfo dre lz application Web class NNTP optimize tfo dre lz application Email-and-Messaging ... interface waas enable

The following example shows a partial MACE configuration with WAAS Express already configured as shown in the preceding excerpt:

flow record type mace my-flow-record collect art all flow exporter my-flow-exporter export-protocol netflow-v9 destination 10.101.200.1 flow monitor type mace my-flow-monitor record my-flow-record exporter my-flow-exporter mace monitor waas all my-flow-monitor interface mace enable

The following example shows a partial MACE configuration without WAAS Express:

flow record type mace mace-flow-record collect datalink mac source address input collect ipv4 dscp collect interface input collect interface output collect application name collect waas all flow exporter flow-exporter1 destination 10.101.200.1 source output-features transport udp 32001 flow monitor type mace mace-flow-monitor1 record mace-flow-record exporter flow-exporter1 class-map type waas match-any HTTP match tcp destination port 80 match tcp destination port 8080 ... policy-map type mace mace_global class HTTP flow monitor mace-flow-monitor1 ... interface mace enable

Vulnerability Scoring Details

Cisco has scored the vulnerabilities in this advisory based on the Common Vulnerability Scoring System (CVSS). The CVSS scoring in this security advisory is in accordance with CVSS version 2.0.

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

Cisco has provided a base and temporal score. Customers can also compute environmental scores that help determine the impact of the vulnerability in their own networks.

Cisco has provided additional information regarding CVSS at the following link:

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

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

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

  • CSCtt45381

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

  • CSCtq64987 and CSCtu57226

CVSS Base Score - 7.1 Access Vector - Network Access Complexity - Medium Authentication - None Confidentiality Impact - None Integrity Impact - None Availability Impact - Complete

CVSS Temporal Score - 5.9 Exploitability - Functional Remediation Level - Official-Fix Report Confidence - Confirmed

Impact

Successful exploitation of these vulnerabilities could allow an unauthenticated, remote attacker to cause the router to leak memory or to reload. Repeated exploits could allow a sustained DoS condition.

Software Versions and Fixes

When considering software upgrades, customers are advised to consult the Cisco Security Advisories and Responses archive at http://www.cisco.com/go/psirt and review subsequent advisories to determine exposure and a complete upgrade solution.

In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers. If a particular train is vulnerable, the earliest releases that contain the fix are listed in the First Fixed Release column. The First Fixed Release for All Advisories in the March 2012 Bundled Publication column lists the earliest possible releases that correct all the published vulnerabilities in the Cisco IOS Software Security Advisory bundled publication. Cisco recommends upgrading to the latest available release, where possible. This tool is available on the Cisco Security Intelligence Operations (SIO) portal at:

http://tools.cisco.com/security/center/selectIOSVersion.x

+------------------------------------------------------------+ | Major | Availability of Repaired Releases | | Release | | |----------+-------------------------------------------------| | Affected | | First Fixed Release for All | |12.0-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |------------------------------------------------------------| | There are no affected 12.0 based releases | |------------------------------------------------------------| | Affected | | First Fixed Release for All | |12.2-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |------------------------------------------------------------| | There are no affected 12.2 based releases | |------------------------------------------------------------| | Affected | | First Fixed Release for All | |12.3-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |------------------------------------------------------------| | There are no affected 12.3 based releases | |------------------------------------------------------------| | Affected | | First Fixed Release for All | |12.4-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |------------------------------------------------------------| | There are no affected 12.4 based releases | |------------------------------------------------------------| | Affected | | First Fixed Release for All | |15.0-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |------------------------------------------------------------| | There are no affected 15.0 based releases | |------------------------------------------------------------| | Affected | | First Fixed Release for All | |15.1-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |----------+------------------+------------------------------| |15.1EY |Not vulnerable |15.1(2)EY2 | |----------+------------------+------------------------------| |15.1GC |Not vulnerable |15.1(2)GC2 | |----------+------------------+------------------------------| | |15.1(4)M4; |15.1(4)M4; Available on | |15.1M |Available on |30-MAR-12 | | |30-MAR-12 | | |----------+------------------+------------------------------| | | |Vulnerable; contact your | | | |support organization per the | |15.1MR |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of this| | | |advisory. | |----------+------------------+------------------------------| | |Cisco IOS XE | | | |devices: Please |Cisco IOS XE devices: Please | |15.1S |see Cisco IOS XE |see Cisco IOS XE Software | | |Software |Availability | | |Availability | | |----------+------------------+------------------------------| | |Cisco IOS XE | | | |devices: Please |Cisco IOS XE devices: Please | |15.1SG |see Cisco IOS XE |see Cisco IOS XE Software | | |Software |Availability | | |Availability | | |----------+------------------+------------------------------| | | |Vulnerable; contact your | | | |support organization per the | |15.1SNG |Not vulnerable |instructions in Obtaining | | | |Fixed Software section of this| | | |advisory. | |----------+------------------+------------------------------| |15.1SNH |Not vulnerable |Not vulnerable | |----------+------------------+------------------------------| |15.1T |Not vulnerable |15.1(3)T3 | |----------+------------------+------------------------------| |15.1XB |Not vulnerable |Vulnerable; First fixed in | | | |Release 15.1T | |----------+------------------+------------------------------| | Affected | | First Fixed Release for All | |15.2-Based| First Fixed | Advisories in the March 2012 | | Releases | Release | Cisco IOS Software Security | | | | Advisory Bundled Publication | |----------+------------------+------------------------------| |15.2GC |15.2(1)GC2 |15.2(1)GC2 | |----------+------------------+------------------------------| |15.2S |Not vulnerable |15.2(1)S1 | | | | | |----------+------------------+------------------------------| | |15.2(1)T2 |15.2(1)T2 | | |15.2(2)T1 |15.2(2)T1 | |15.2T |15.2(3)T; |15.2(3)T; Available on | | |Available on |30-MAR-12 | | |30-MAR-12 | | +------------------------------------------------------------+

For a mapping of Cisco IOS XE Software releases to Cisco IOS Software releases, refer to Cisco IOS XE 2 Release Notes, Cisco IOS XE 3S Release Notes, and Cisco IOS XE 3SG Release Notes.

Workarounds

There are no workarounds for these vulnerabilities.

There is no Applied Mitigation Bulletin (AMB) for this advisory.

Obtaining Fixed Software

Cisco has released free software updates that address the vulnerabilities described in this advisory. Prior to deploying software, customers are advised to consult their maintenance providers or check the software for feature set compatibility and known issues that are specific to their environments.

Customers may only install and expect support for feature sets they have purchased. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license at http://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html, or as set forth 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, upgrades should be obtained through the Software Center on Cisco.com at http://www.cisco.com.

Customers Using Third-Party Support Organizations +------------------------------------------------

Customers with Cisco products that 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 organization for assistance with the appropriate course of action.

The effectiveness of any workaround or fix depends on specific customer situations, such as product mix, network topology, traffic behavior, and organizational mission. Because of the variety of affected products and releases, customers should consult their service providers or support organizations to ensure that any applied workaround or fix is the most appropriate in the intended network before it is deployed.

Customers Without Service Contracts +----------------------------------

Customers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco Technical Assistance Center (TAC):

  • +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 the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade. Customers without service contracts should request free upgrades through the TAC.

Refer to Cisco Worldwide Contacts at http://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html for additional TAC contact information, including localized telephone numbers, instructions, and e-mail addresses for support in various languages.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.

These vulnerabilities were initially found by Cisco during internal testing.

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 Security Intelligence Operations at the following link:

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-mace

Additionally, a text version of this advisory is clear signed with the Cisco PSIRT PGP key and circulated among the following e-mail addresses:

  • 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

Future updates of this advisory, if any, will reside on Cisco.com but may not be announced on mailing lists. Users can monitor this advisory's URL for any updates.

Revision History

+------------------------------------------------------------+ | Revision 1.0 | 2012-March-28 | Initial public release | +------------------------------------------------------------+

Cisco Security Procedures

Complete information about reporting security vulnerabilities in Cisco products, obtaining assistance with security incidents, and registering to receive security information from Cisco is available on Cisco.com at http://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. This web page includes instructions for press inquiries regarding Cisco Security Advisories. All Cisco Security Advisories are available at http://www.cisco.com/go/psirt. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux)

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Become a PSI 3.0 beta tester! Test-drive the new beta version and tell us what you think about its extended automatic update function and significantly enhanced user-interface. Download it here! http://secunia.com/psi_30_beta_launch

TITLE: Cisco IOS WAAS and MACE Denial of Service Vulnerabilities

SECUNIA ADVISORY ID: SA48595

VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/48595/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=48595

RELEASE DATE: 2012-03-29

DISCUSS ADVISORY: http://secunia.com/advisories/48595/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s)

http://secunia.com/advisories/48595/

ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=48595

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION: Two vulnerabilities have been reported in Cisco IOS, which can be exploited by malicious people to cause a DoS (Denial of Service).

SOLUTION: Update to a fixed version.

Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

PROVIDED AND/OR DISCOVERED BY: Reported by the vendor

ORIGINAL ADVISORY: http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-mace

OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/

About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities.

Subscribe: http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/

Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor

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    "data": "The MACE feature in Cisco IOS 15.1 and 15.2 allows remote attackers to cause a denial of service (device reload) via crafted transit traffic, aka Bug IDs CSCtq64987 and CSCtu57226. Cisco IOS is a popular Internet operating system. Cisco IOS is prone to multiple remote denial-of-service vulnerabilities. \nAn attacker can exploit these issues to cause an affected device to leak memory or reload, denying service to legitimate users. \nThese issues are being tracked by Cisco Bug IDs:\nCSCtt45381\nCSCtq64987\nCSCtu57226. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\nCisco Security Advisory: Multiple Vulnerabilities in Cisco IOS Software\nTraffic Optimization Features\n\nAdvisory ID: cisco-sa-20120328-mace\n\nRevision 1.0\n\nFor Public Release 2012 March 28 16:00  UTC (GMT)\n\n+--------------------------------------------------------------------\n\nSummary\n=======\n\nCisco IOS Software contains a denial of service (DoS) vulnerability\nin the Wide Area Application Services (WAAS) Express feature that\ncould allow an unauthenticated, remote attacker to cause the router\nto leak memory or to reload. \n\nAn attacker could exploit these vulnerabilities by sending transit\ntraffic through a router configured with WAAS Express or MACE. Repeated exploits could allow a sustained DoS\ncondition. \n\nCisco has released free software updates that address these\nvulnerabilities. This advisory is available at the following link:\n\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-mace\n\n\nNote: The March 28, 2012, Cisco IOS Software Security Advisory\nbundled publication includes nine Cisco Security Advisories. Each\nadvisory lists the Cisco IOS Software releases that correct the\nvulnerability or vulnerabilities detailed in the advisory as well as\nthe Cisco IOS Software releases that correct all vulnerabilities in\nthe March 2012 bundled publication. \n\nIndividual publication links are in \"Cisco Event Response:\nSemi-Annual Cisco IOS Software Security Advisory Bundled Publication\"\nat the following link:\n\nhttp://www.cisco.com/web/about/security/intelligence/\nCisco_ERP_mar12.html\n\n\n\nAffected Products\n=================\n\nVulnerable Products\n+------------------\n\nCisco devices that are running Cisco IOS Software are vulnerable\nwhen they are configured with the \"mace enable\" or \"waas enable\"\ninterface configuration commands on one or more interfaces. Additional\nconfiguration is required for WAAS Express or MACE to be configured;\nmore details follow. \n\nNote: Cisco IOS Software is vulnerable only when configured for WAAS\nExpress or MACE. Cisco IOS Software configured for WAAS, not WAAS\nExpress, is not vulnerable. \n\nFor more information on WAAS Express, see\nhttp://www.cisco.com/en/US/products/ps11211/index.html. \nFor more information about MACE, see\nhttp://www.cisco.com/en/US/prod/collateral/netmgtsw/ps11709/ps11671/guide_c07-664643.html. \n\n\nTo determine the Cisco IOS Software release that is running on a Cisco\nproduct, administrators can log in to the device and issue the \"show\nversion\" command to display the system banner. Other Cisco devices\ndo not have the \"show version\" command or may provide different output. \n\nThe following example identifies a Cisco product that is running\nCisco IOS Software Release 15.0(1)M1 with an installed image name of\nC3900-UNIVERSALK9-M:\n\nRouter\u003e show version \nCisco IOS Software, C3900 Software (C3900-UNIVERSALK9-M), Version 15.0(1)M1, RELEASE SOFTWARE (fc1)\nTechnical Support: http://www.cisco.com/techsupport\nCopyright (c) 1986-2009 by Cisco Systems, Inc. \nCompiled Wed 02-Dec-09 17:17 by prod_rel_team\n\n!--- output truncated \n\nAdditional information about Cisco IOS Software release\nnaming conventions is available in \"White Paper:\nCisco IOS and NX-OS Software Reference Guide\" at\nhttp://www.cisco.com/web/about/security/intelligence/ios-ref.html. \n\nProducts Confirmed Not Vulnerable\n+--------------------------------\n\nNo other Cisco products are currently known to be affected by these\nvulnerabilities. \n\nDetails\n=======\n\nThe Cisco Wide Area Application Services (WAAS) Express feature allows\noptimization of the WAN bandwidth required to access centrally located\napplications. WAAS Express allows the traffic to be optimized by a Cisco\nIntegrated Services Router (ISR G2), with no other devices required. \n\nThe Cisco Measurement, Aggregation, and Correlation Engine (MACE) is a\nCisco IOS feature that is used for measurement and analysis of network\ntraffic. The feature may be used with WAAS Express to give details\nof optimized traffic or used by itself to help measure application\nperformance. This vulnerability is documented\nin Cisco bug ID CSCtt45381 and has been assigned Common Vulnerabilities\nand Exposures (CVE) ID CVE-2012-1314. \n\nAn attacker could exploit these vulnerabilities by sending transit\ntraffic through a router configured with WAAS Express or MACE. Repeated exploits could allow a sustained DoS\ncondition. \n\nA configuration similar to one or more of the following configuration\nexcerpts will exist if WAAS Express or MACE is configured on the\nrouter. \n\nThe following example shows a partial WAAS Express configuration:\n\nparameter-map type waas waas_global\n tfo optimize full\nclass-map type waas match-any HTTP\n match tcp destination port 80\nclass-map type waas match-any NNTP\n match  tcp destination port 119\n ... \npolicy-map type waas waas_global\n class HTTP\n  optimize tfo dre lz application Web\n class NNTP\n  optimize tfo dre lz application Email-and-Messaging\n ... \ninterface \u003cegress interface\u003e\n waas enable\n\nThe following example shows a partial MACE configuration with WAAS\nExpress already configured as shown in the preceding excerpt:\n\nflow record type mace my-flow-record\n collect art all\nflow exporter my-flow-exporter\n export-protocol netflow-v9\n destination 10.101.200.1\nflow monitor type mace my-flow-monitor\n record my-flow-record\n exporter my-flow-exporter\nmace monitor waas all my-flow-monitor\ninterface \u003cegress interface\u003e\n mace enable\n\nThe following example shows a partial MACE configuration without WAAS\nExpress:\n\nflow record type mace mace-flow-record\n collect datalink mac source address input\n collect ipv4 dscp\n collect interface input\n collect interface output\n collect application name\n collect waas all\nflow exporter flow-exporter1\n destination 10.101.200.1\n source \u003cinterface\u003e\n output-features\n transport udp 32001\nflow monitor type mace mace-flow-monitor1\n record mace-flow-record\n exporter flow-exporter1\nclass-map type waas match-any HTTP\n match  tcp destination port 80\n match  tcp destination port 8080\n ... \npolicy-map type mace mace_global\n class HTTP\n  flow monitor mace-flow-monitor1\n ... \ninterface \u003cegress interface\u003e\n mace enable\n\nVulnerability Scoring Details\n=============================\n\nCisco has scored the vulnerabilities in this advisory based on the\nCommon Vulnerability Scoring System (CVSS). The CVSS scoring in this\nsecurity advisory is in accordance with CVSS version 2.0. \n\nCVSS is a standards-based scoring method that conveys vulnerability\nseverity and helps organizations determine the urgency and priority\nof a response. \n\nCisco has provided a base and temporal score. Customers can also\ncompute environmental scores that help determine the impact of the\nvulnerability in their own networks. \n\nCisco has provided additional information regarding CVSS at the\nfollowing link:\n\nhttp://www.cisco.com/web/about/security/intelligence/cvss-qandas.html\n\nCisco has also provided a CVSS calculator to compute the\nenvironmental impact for individual networks at the following link:\n\nhttp://intellishield.cisco.com/security/alertmanager/cvss\n\n\n* CSCtt45381\n\nCVSS Base Score - 7.8\n    Access Vector -            Network\n    Access Complexity -        Low\n    Authentication -           None\n    Confidentiality Impact -   None\n    Integrity Impact -         None\n    Availability Impact -      Complete\n\nCVSS Temporal Score - 6.4\n    Exploitability -           Functional\n    Remediation Level -        Official-Fix\n    Report Confidence -        Confirmed\n\n\n* CSCtq64987 and CSCtu57226\n\nCVSS Base Score - 7.1\n    Access Vector -            Network\n    Access Complexity -        Medium\n    Authentication -           None\n    Confidentiality Impact -   None\n    Integrity Impact -         None\n    Availability Impact -      Complete\n\nCVSS Temporal Score - 5.9\n    Exploitability -           Functional\n    Remediation Level -        Official-Fix\n    Report Confidence -        Confirmed\n\n\nImpact\n======\n\nSuccessful exploitation of these vulnerabilities could allow an\nunauthenticated, remote attacker to cause the router to leak memory or\nto reload. Repeated exploits could allow a sustained DoS condition. \n\nSoftware Versions and Fixes\n===========================\n\nWhen considering software upgrades, customers are advised to\nconsult the Cisco Security Advisories and Responses archive at\nhttp://www.cisco.com/go/psirt and review subsequent advisories to\ndetermine exposure and a complete upgrade solution. \n\nIn all cases, customers should ensure that the devices to be upgraded\ncontain sufficient memory and confirm that current hardware and\nsoftware configurations will continue to be supported properly by the\nnew release. If the information is not clear, customers are advised\nto contact the Cisco Technical Assistance Center (TAC) or their\ncontracted maintenance providers. If a particular train is vulnerable, the\nearliest releases that contain the fix are listed in the First Fixed\nRelease column. The First Fixed Release for All Advisories in the\nMarch 2012 Bundled Publication column lists the earliest possible\nreleases that correct all the published vulnerabilities in the Cisco\nIOS Software Security Advisory bundled publication. Cisco recommends\nupgrading to the latest available release, where possible. This tool is available on the Cisco Security Intelligence\nOperations (SIO) portal at:\n\nhttp://tools.cisco.com/security/center/selectIOSVersion.x\n\n\n\n+------------------------------------------------------------+\n|  Major   |          Availability of Repaired Releases      |\n| Release  |                                                 |\n|----------+-------------------------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|12.0-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|------------------------------------------------------------|\n|         There are no affected 12.0 based releases          |\n|------------------------------------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|12.2-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|------------------------------------------------------------|\n|         There are no affected 12.2 based releases          |\n|------------------------------------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|12.3-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|------------------------------------------------------------|\n|         There are no affected 12.3 based releases          |\n|------------------------------------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|12.4-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|------------------------------------------------------------|\n|         There are no affected 12.4 based releases          |\n|------------------------------------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|15.0-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|------------------------------------------------------------|\n|         There are no affected 15.0 based releases          |\n|------------------------------------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|15.1-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|----------+------------------+------------------------------|\n|15.1EY    |Not vulnerable    |15.1(2)EY2                    |\n|----------+------------------+------------------------------|\n|15.1GC    |Not vulnerable    |15.1(2)GC2                    |\n|----------+------------------+------------------------------|\n|          |15.1(4)M4;        |15.1(4)M4; Available on       |\n|15.1M     |Available on      |30-MAR-12                     |\n|          |30-MAR-12         |                              |\n|----------+------------------+------------------------------|\n|          |                  |Vulnerable; contact your      |\n|          |                  |support organization per the  |\n|15.1MR    |Not vulnerable    |instructions in Obtaining     |\n|          |                  |Fixed Software section of this|\n|          |                  |advisory.                     |\n|----------+------------------+------------------------------|\n|          |Cisco IOS XE      |                              |\n|          |devices: Please   |Cisco IOS XE devices: Please  |\n|15.1S     |see Cisco IOS XE  |see Cisco IOS XE Software     |\n|          |Software          |Availability                  |\n|          |Availability      |                              |\n|----------+------------------+------------------------------|\n|          |Cisco IOS XE      |                              |\n|          |devices: Please   |Cisco IOS XE devices: Please  |\n|15.1SG    |see Cisco IOS XE  |see Cisco IOS XE Software     |\n|          |Software          |Availability                  |\n|          |Availability      |                              |\n|----------+------------------+------------------------------|\n|          |                  |Vulnerable; contact your      |\n|          |                  |support organization per the  |\n|15.1SNG   |Not vulnerable    |instructions in Obtaining     |\n|          |                  |Fixed Software section of this|\n|          |                  |advisory.                     |\n|----------+------------------+------------------------------|\n|15.1SNH   |Not vulnerable    |Not vulnerable                |\n|----------+------------------+------------------------------|\n|15.1T     |Not vulnerable    |15.1(3)T3                     |\n|----------+------------------+------------------------------|\n|15.1XB    |Not vulnerable    |Vulnerable; First fixed in    |\n|          |                  |Release 15.1T                 |\n|----------+------------------+------------------------------|\n| Affected |                  | First Fixed Release for All  |\n|15.2-Based|   First Fixed    | Advisories in the March 2012 |\n| Releases |     Release      | Cisco IOS Software Security  |\n|          |                  | Advisory Bundled Publication |\n|----------+------------------+------------------------------|\n|15.2GC    |15.2(1)GC2        |15.2(1)GC2                    |\n|----------+------------------+------------------------------|\n|15.2S     |Not vulnerable    |15.2(1)S1                     |\n|          |                  |                              |\n|----------+------------------+------------------------------|\n|          |15.2(1)T2         |15.2(1)T2                     |\n|          |15.2(2)T1         |15.2(2)T1                     |\n|15.2T     |15.2(3)T;         |15.2(3)T; Available on        |\n|          |Available on      |30-MAR-12                     |\n|          |30-MAR-12         |                              |\n+------------------------------------------------------------+\n\n\nFor a mapping of Cisco IOS XE Software releases to Cisco IOS Software\nreleases, refer to Cisco IOS XE 2 Release Notes, Cisco IOS XE 3S Release\nNotes, and Cisco IOS XE 3SG Release Notes. \n\n\nWorkarounds\n===========\n\nThere are no workarounds for these vulnerabilities. \n\nThere is no Applied Mitigation Bulletin (AMB) for this advisory. \n\nObtaining Fixed Software\n========================\n\nCisco has released free software updates that address the\nvulnerabilities described in this advisory. Prior to deploying\nsoftware, customers are advised to consult their maintenance\nproviders or check the software for feature set compatibility and\nknown issues that are specific to their environments. \n\nCustomers may only install and expect support for feature\nsets they have purchased. By installing, downloading,\naccessing, or otherwise using such software upgrades, customers\nagree to follow the terms of the Cisco software license at\nhttp://www.cisco.com/en/US/docs/general/warranty/English/EU1KEN_.html,\nor as set forth at\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 their\nregular update channels. For most customers, upgrades should be obtained\nthrough the Software Center on Cisco.com at http://www.cisco.com. \n\nCustomers Using Third-Party Support Organizations\n+------------------------------------------------\n\nCustomers with Cisco products that 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 organization for assistance with the appropriate\ncourse of action. \n\nThe effectiveness of any workaround or fix depends on specific\ncustomer situations, such as product mix, network topology, traffic\nbehavior, and organizational mission. Because of the variety of\naffected products and releases, customers should consult their\nservice providers or support organizations to ensure that any applied\nworkaround or fix is the most appropriate in the intended network\nbefore it is deployed. \n\nCustomers Without Service Contracts\n+----------------------------------\n\nCustomers who purchase directly from Cisco but do not hold a Cisco\nservice contract and customers who make purchases through third-party\nvendors but are unsuccessful in obtaining fixed software through\ntheir point of sale should obtain upgrades by contacting the Cisco\nTechnical Assistance Center (TAC):\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 the product serial number available and be\nprepared to provide the URL of this advisory as evidence of\nentitlement to a free upgrade. Customers without service contracts\nshould request free upgrades through the TAC. \n\nRefer to Cisco Worldwide Contacts at\nhttp://www.cisco.com/en/US/support/tsd_cisco_worldwide_contacts.html\nfor additional TAC contact information, including localized telephone\nnumbers, instructions, and e-mail addresses for support in various\nlanguages. \n\nExploitation and Public Announcements\n=====================================\n\nThe Cisco Product Security Incident Response Team (PSIRT) is not\naware of any public announcements or malicious use of the\nvulnerabilities that are described in this advisory. \n\nThese vulnerabilities were initially found by Cisco during internal\ntesting. \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\n\nDistribution\n============\n\nThis advisory is posted on Cisco Security Intelligence Operations at\nthe following link:\n\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-mace\n\nAdditionally, a text version of this advisory is clear signed with\nthe Cisco PSIRT PGP key and circulated among the following e-mail\naddresses:\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\nFuture updates of this advisory, if any, will reside on Cisco.com but\nmay not be announced on mailing lists. Users can monitor this\nadvisory\u0027s URL for any updates. \n\n\nRevision History\n================\n\n+------------------------------------------------------------+\n| Revision 1.0  | 2012-March-28   | Initial public release   |\n+------------------------------------------------------------+\n\nCisco Security Procedures\n=========================\n\nComplete information about reporting security vulnerabilities in Cisco\nproducts, obtaining assistance with security incidents, and registering\nto receive security information from Cisco is available on Cisco.com at\nhttp://www.cisco.com/en/US/products/products_security_vulnerability_policy.html. \nThis web page includes instructions for press inquiries\nregarding Cisco Security Advisories. All Cisco Security Advisories are\navailable at http://www.cisco.com/go/psirt. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1.4.11 (GNU/Linux)\n\niF4EAREIAAYFAk9yeDQACgkQQXnnBKKRMND8JAD+LwCEQ/3I15qyaV2fGjOXnBBP\noqdlu1PkfePXe5OeMaoA/iUbaiXx3glDNbmziQwcm+fVu2RAJ1HvZzyh0mjz9vOn\n=BPrU\n-----END PGP SIGNATURE-----\n. ----------------------------------------------------------------------\n\nBecome a PSI 3.0 beta tester!\nTest-drive the new beta version and tell us what you think about its extended automatic update function and significantly enhanced user-interface. \nDownload it here!\nhttp://secunia.com/psi_30_beta_launch\n\n----------------------------------------------------------------------\n\nTITLE:\nCisco IOS WAAS and MACE Denial of Service Vulnerabilities\n\nSECUNIA ADVISORY ID:\nSA48595\n\nVERIFY ADVISORY:\nSecunia.com\nhttp://secunia.com/advisories/48595/\nCustomer Area (Credentials Required)\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=48595\n\nRELEASE DATE:\n2012-03-29\n\nDISCUSS ADVISORY:\nhttp://secunia.com/advisories/48595/#comments\n\nAVAILABLE ON SITE AND IN CUSTOMER AREA:\n * Last Update\n * Popularity\n * Comments\n * Criticality Level\n * Impact\n * Where\n * Solution Status\n * Operating System / Software\n * CVE Reference(s)\n\nhttp://secunia.com/advisories/48595/\n\nONLY AVAILABLE IN CUSTOMER AREA:\n * Authentication Level\n * Report Reliability\n * Secunia PoC\n * Secunia Analysis\n * Systems Affected\n * Approve Distribution\n * Remediation Status\n * Secunia CVSS Score\n * CVSS\n\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=48595\n\nONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:\n * AUTOMATED SCANNING\n\nhttp://secunia.com/vulnerability_scanning/personal/\nhttp://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/\n\nDESCRIPTION:\nTwo vulnerabilities have been reported in Cisco IOS, which can be\nexploited by malicious people to cause a DoS (Denial of Service). \n\nSOLUTION:\nUpdate to a fixed version. \n\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nPROVIDED AND/OR DISCOVERED BY:\nReported by the vendor\n\nORIGINAL ADVISORY:\nhttp://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120328-mace\n\nOTHER REFERENCES:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nDEEP LINKS:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED DESCRIPTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED SOLUTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXPLOIT:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\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",
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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Detection rules are retrieved from Rulezet.