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CVE-2005-2105

7.5 · HIGH

Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.

Published Jul 5, 2005ciscoEPSS 2.59%

Overview

CVE-2005-2105 is a high-severity vulnerability affecting cisco ios. It was published on July 5, 2005 and has a CVSS 2.0 base score of 7.5 (HIGH).

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Cisco IOS 12.2T through 12.4 allows remote attackers to bypass Authentication, Authorization, and Accounting (AAA) RADIUS authentication, if the fallback method is set to none, via a long username.

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/warp/public/707/cisco-sa-20050629-aaa.shtmlRefwww.securitytracker.com/alerts/2005/Jun/1014330.htmlRefexchange.xforce.ibmcloud.com/vulnerabilities/21190Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5756Refwww.cisco.com/warp/public/707/cisco-sa-20050629-aaa.shtmlRefwww.securitytracker.com/alerts/2005/Jun/1014330.htmlRefexchange.xforce.ibmcloud.com/vulnerabilities/21190Refoval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5756

How CyberStrike helps

Frequently asked questions

What is CVE-2005-2105?

CVE-2005-2105 is a high-severity vulnerability affecting cisco ios. It was published on July 5, 2005 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2005-2105?

This vulnerability has a CVSS 2.0 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2005-2105?

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-2005-2105?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2005-2105 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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