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CVE-2009-3291

7.5 · HIGH

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability…

Published Sep 22, 2009phpCWE-20EPSS 2.91%

Overview

CVE-2009-3291 is a high-severity vulnerability affecting php php. It was published on September 22, 2009 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

The php_openssl_apply_verification_policy function in PHP before 5.2.11 does not properly perform certificate validation, which has unknown impact and attack vectors, probably related to an ability to spoof certificates.

Remediation

Check the references section for vendor advisories and patches from php. Update php 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
phpphp0Affected

References

Reflists.apple.com/archives/security-announce/2009/Nov/msg00000.htmlReflists.opensuse.org/opensuse-security-announce/2009-10/msg00004.htmlRefmarc.info/?l=bugtraq&m=127680701405735&w=2Refmarc.info/?l=bugtraq&m=130497311408250&w=2Refsecunia.com/advisories/36791Refsecunia.com/advisories/37482Refsecunia.com/advisories/40262Refsupport.apple.com/kb/HT3937Refwww.debian.org/security/2009/dsa-1940Refwww.osvdb.org/58185

How CyberStrike helps

Frequently asked questions

What is CVE-2009-3291?

CVE-2009-3291 is a high-severity vulnerability affecting php php. It was published on September 22, 2009 and has a CVSS 2.0 base score of 7.5 (HIGH).

How severe is CVE-2009-3291?

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-2009-3291?

Check the references section for vendor advisories and patches from php. Update php 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-2009-3291?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-3291 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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