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CVE-2008-2108

9.8 · CRITICAL

The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insuff…

Published May 7, 2008phpCWE-331EPSS 4.29%

Overview

CVE-2008-2108 is a critical-severity vulnerability affecting php php. It was published on May 7, 2008 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The GENERATE_SEED macro in PHP 4.x before 4.4.8 and 5.x before 5.2.5, when running on 64-bit systems, performs a multiplication that generates a portion of zero bits during conversion due to insufficient precision, which produces 24 bits of entropy and simplifies brute force attacks against protection mechanisms that use the rand and mt_rand functions.

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
phpphp>= 4.0.0, < 4.4.8Affected

References

Refarchives.neohapsis.com/archives/fulldisclosure/2008-05/0103.htmlRefsecunia.com/advisories/30757Refsecunia.com/advisories/30828Refsecunia.com/advisories/31119Refsecunia.com/advisories/31124Refsecunia.com/advisories/31200Refsecunia.com/advisories/32746Refsecunia.com/advisories/35003Refsecurity.gentoo.org/glsa/glsa-200811-05.xmlRefsecurityreason.com/securityalert/3859

How CyberStrike helps

Frequently asked questions

What is CVE-2008-2108?

CVE-2008-2108 is a critical-severity vulnerability affecting php php. It was published on May 7, 2008 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2008-2108?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2008-2108?

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-2008-2108?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-2108 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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