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CVE-2009-3875

5.0 · MEDIUM

The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK a…

Published Nov 5, 2009sunCWE-310EPSS 3.17%

Overview

CVE-2009-3875 is a medium-severity vulnerability affecting sun jdk. It was published on November 5, 2009 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

The MessageDigest.isEqual function in Java Runtime Environment (JRE) in Sun Java SE in JDK and JRE 5.0 before Update 22, JDK and JRE 6 before Update 17, SDK and JRE 1.3.x before 1.3.1_27, and SDK and JRE 1.4.x before 1.4.2_24 allows remote attackers to spoof HMAC-based digital signatures, and possibly bypass authentication, via unspecified vectors related to "timing attack vulnerabilities," aka Bug Id 6863503.

Remediation

Check the references section for vendor advisories and patches from sun. Update jdk 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

Refjava.sun.com/javase/6/webnotes/6u17.htmlReflists.apple.com/archives/security-announce/2009/Dec/msg00000.htmlReflists.apple.com/archives/security-announce/2009/Dec/msg00001.htmlReflists.opensuse.org/opensuse-security-announce/2009-11/msg00010.htmlRefmarc.info/?l=bugtraq&m=126566824131534&w=2Refmarc.info/?l=bugtraq&m=131593453929393&w=2Refmarc.info/?l=bugtraq&m=134254866602253&w=2Refsecunia.com/advisories/37231Refsecunia.com/advisories/37239Refsecunia.com/advisories/37386

How CyberStrike helps

Frequently asked questions

What is CVE-2009-3875?

CVE-2009-3875 is a medium-severity vulnerability affecting sun jdk. It was published on November 5, 2009 and has a CVSS 2.0 base score of 5.0 (MEDIUM).

How severe is CVE-2009-3875?

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-2009-3875?

Check the references section for vendor advisories and patches from sun. Update jdk 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-2009-3875?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-3875 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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