CVE-2009-4440: sun java_system_directory_server Race Condition

Vulnerability summary

CVE-2009-4440 is a medium (CVSS 6.8) Race Condition vulnerability in sun java_system_directory_server. EPSS estimates a 1.60% chance of exploitation in the next 30 days, higher than 75.4% of scored vulnerabilities.

Timeline

1. 28-12-2009
   PublishedVulnerability first disclosed.
2. 07-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.