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CVE-2008-5913

4.9 · MEDIUM

The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.x before 3.5.10 and 3.6.x before 3.6.4, and SeaMonkey before 2.0.5, uses a random number generator that is seeded on…

Published Jan 20, 2009mozillaEPSS 1.14%

Overview

CVE-2008-5913 is a medium-severity vulnerability affecting mozilla firefox. It was published on January 20, 2009 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

The Math.random function in the JavaScript implementation in Mozilla Firefox 3.5.x before 3.5.10 and 3.6.x before 3.6.4, and SeaMonkey before 2.0.5, uses a random number generator that is seeded only once per browser session, which makes it easier for remote attackers to track a user, or trick a user into acting upon a spoofed pop-up message, by calculating the seed value, related to a "temporary footprint" and an "in-session phishing attack."

Remediation

Check the references section for vendor advisories and patches from mozilla. Update firefox 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
mozillaseamonkey0Affected

References

Refarstechnica.com/news.ars/post/20090113-new-method-of-phishmongering-could-fool-experienced-users.htmlReflists.fedoraproject.org/pipermail/package-announce/2010-June/043369.htmlReflists.fedoraproject.org/pipermail/package-announce/2010-June/043405.htmlReflists.opensuse.org/opensuse-security-announce/2010-07/msg00005.htmlRefsecunia.com/advisories/40326Refsecunia.com/advisories/40401Refsecunia.com/advisories/40481Refsupport.avaya.com/css/P8/documents/100091069Refubuntu.com/usn/usn-930-1Refwww.darkreading.com/security/attacks/showArticle.jhtml?articleID=212900161

How CyberStrike helps

Frequently asked questions

What is CVE-2008-5913?

CVE-2008-5913 is a medium-severity vulnerability affecting mozilla firefox. It was published on January 20, 2009 and has a CVSS 2.0 base score of 4.9 (MEDIUM).

How severe is CVE-2008-5913?

This vulnerability has a CVSS 2.0 base score of 4.9, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2008-5913?

Check the references section for vendor advisories and patches from mozilla. Update firefox 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-2008-5913?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2008-5913 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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