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CVE-2009-4440

6.8 · MEDIUM

Directory Proxy Server (DPS) in Sun Java System Directory Server Enterprise Edition 6.0 through 6.3.1 does not properly handle multiple client connections within a short time window, which allows r…

Published Dec 28, 2009sunCWE-362EPSS 1.60%

Overview

CVE-2009-4440 is a medium-severity vulnerability affecting sun java_system_directory_server. It was published on December 28, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 6.8, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Directory Proxy Server (DPS) in Sun Java System Directory Server Enterprise Edition 6.0 through 6.3.1 does not properly handle multiple client connections within a short time window, which allows remote attackers to hijack the backend connection of an authenticated user, and obtain the privileges of this user, by making a client connection in opportunistic circumstances, related to "long binds," aka Bug Ids 6828462 and 6823593.

Remediation

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

Refsecunia.com/advisories/37915Refsunsolve.sun.com/search/document.do?assetkey=1-21-141958-01-1Refsunsolve.sun.com/search/document.do?assetkey=1-66-270789-1Refwww.securityfocus.com/bid/37481Refwww.securitytracker.com/id?1023389Refwww.vupen.com/english/advisories/2009/3647Refsecunia.com/advisories/37915Refsunsolve.sun.com/search/document.do?assetkey=1-21-141958-01-1Refsunsolve.sun.com/search/document.do?assetkey=1-66-270789-1Refwww.securityfocus.com/bid/37481

How CyberStrike helps

Frequently asked questions

What is CVE-2009-4440?

CVE-2009-4440 is a medium-severity vulnerability affecting sun java_system_directory_server. It was published on December 28, 2009 and has a CVSS 2.0 base score of 6.8 (MEDIUM).

How severe is CVE-2009-4440?

This vulnerability has a CVSS 2.0 base score of 6.8, 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-2009-4440?

Check the references section for vendor advisories and patches from sun. Update java_system_directory_server 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-2009-4440?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2009-4440 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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