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CVE-2012-3923

3.5 · LOW

The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to…

Published Sep 16, 2012ciscoEPSS 0.86%

Overview

CVE-2012-3923 is a low-severity vulnerability affecting cisco ios. It was published on September 16, 2012 and has a CVSS 2.0 base score of 3.5 (LOW).

This vulnerability has a CVSS 2.0 base score of 3.5, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The SSLVPN implementation in Cisco IOS 12.4, 15.0, 15.1, and 15.2, when DTLS is not enabled, does not properly handle certain outbound ACL configurations, which allows remote authenticated users to cause a denial of service (device crash) via a session involving a PPP over ATM (PPPoA) interface, aka Bug ID CSCte41827.

Remediation

Check the references section for vendor advisories and patches from cisco. Update ios to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refwww.cisco.com/en/US/docs/ios/15_2m_and_t/release/notes/152-1TCAVS.htmlRefexchange.xforce.ibmcloud.com/vulnerabilities/78670Refwww.cisco.com/en/US/docs/ios/15_2m_and_t/release/notes/152-1TCAVS.htmlRefexchange.xforce.ibmcloud.com/vulnerabilities/78670

How CyberStrike helps

Frequently asked questions

What is CVE-2012-3923?

CVE-2012-3923 is a low-severity vulnerability affecting cisco ios. It was published on September 16, 2012 and has a CVSS 2.0 base score of 3.5 (LOW).

How severe is CVE-2012-3923?

This vulnerability has a CVSS 2.0 base score of 3.5, rated LOW. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2012-3923?

Check the references section for vendor advisories and patches from cisco. Update ios to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2012-3923?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2012-3923 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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