Vulnerability-Lookup

VAR-200111-0036

Vulnerability from variot - Updated: 2025-04-03 22:14

Cisco IOS Firewall Feature set, aka Context Based Access Control (CBAC) or Cisco Secure Integrated Software, for IOS 11.2P through 12.2T does not properly check the IP protocol type, which could allow remote attackers to bypass access control lists. IOS is a Cisco Internetwork Operating System. It is maintained and distributed by Cisco, and used on various types of Cisco hardware. A problem has been found in the checking of protocol by the system. The vulnerable version of IOS does not check the protocol type of the packets, thus making it possible for a system on either end of the connection to send data of a different type. One such instance would be a system on the protected network sending a UDP packet to a system outside of the protected network, and the external system returning a connection to the host via TCP using the pre-established IP address and port numbers. This could allow a remote user to gather intelligence about a host, and potentially lead to an organized attack against network resources. A remote attacker could exploit this vulnerability to bypass access control lists

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CVE-2001-0929 (GCVE-0-2001-0929)

Vulnerability from cvelistv5 – Published: 2002-06-25 04:00 – Updated: 2024-08-08 04:37

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://exchange.xforce.ibmcloud.com/vulnerabilit…	vdb-entryx_refsource_XF
	http://www.kb.cert.org/vuls/id/362483	third-party-advisoryx_refsource_CERT-VN
	http://www.securityfocus.com/bid/3588	vdb-entryx_refsource_BID
	http://www.osvdb.org/808	vdb-entryx_refsource_OSVDB
	http://www.cisco.com/warp/public/707/IOS-cbac-dyn…	vendor-advisoryx_refsource_CISCO

Show details on NVD website

JSON

To clipboard

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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.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-200111-0036

CVE-2001-0929 (GCVE-0-2001-0929)

Tags

Sightings

Nomenclature