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CVE-2005-3774

5.0 · MEDIUM

Cisco PIX 6.3 and 7.0 allows remote attackers to cause a denial of service (blocked new connections) via spoofed TCP packets that cause the PIX to create embryonic connections that that would not p…

Published Nov 23, 2005ciscoEPSS 18.21%

Overview

CVE-2005-3774 is a medium-severity vulnerability affecting cisco pix. It was published on November 23, 2005 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Cisco PIX 6.3 and 7.0 allows remote attackers to cause a denial of service (blocked new connections) via spoofed TCP packets that cause the PIX to create embryonic connections that that would not produce a valid connection with the end system, including (1) SYN packets with invalid checksums, which do not result in a RST; or, from an external interface, (2) one byte of "meaningless data," or (3) a TTL that is one less than needed to reach the internal destination.

Remediation

Check the references section for vendor advisories and patches from cisco. Update pix 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

Reflists.grok.org.uk/pipermail/full-disclosure/2005-November/038971.htmlReflists.grok.org.uk/pipermail/full-disclosure/2005-November/038983.htmlRefsecunia.com/advisories/17670Refsecuritytracker.com/id?1015256Refwww.cisco.com/en/US/products/hw/vpndevc/ps2030/products_security_notice09186a0080624a37.htmlRefwww.cisco.com/warp/public/707/cisco-response-20051122-pix.shtmlRefwww.kb.cert.org/vuls/id/853540Refwww.osvdb.org/24140Refwww.securityfocus.com/archive/1/417458/30/0/threadedRefwww.securityfocus.com/archive/1/426989/100/0/threaded

How CyberStrike helps

Frequently asked questions

What is CVE-2005-3774?

CVE-2005-3774 is a medium-severity vulnerability affecting cisco pix. It was published on November 23, 2005 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2005-3774?

This vulnerability has a CVSS 2.0 base score of 5.0, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2005-3774?

Check the references section for vendor advisories and patches from cisco. Update pix 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-2005-3774?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2005-3774 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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