FrSIRT - Easy Chat Server "username" Processing Remote Denial of Service Vulnerability / Exploit (Security Advisories)

French Security Incident Response Team

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Easy Chat Server "username" Processing Remote Denial of Service Vulnerability

Title : Easy Chat Server "username" Processing Remote Denial of Service Vulnerability
Advisory ID : FrSIRT/ADV-2007-2901
CVE ID : GENERIC-MAP-NOMATCH
Rated as : Moderate Risk

Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-08-16

Advisory Details

Description

Affected Products

Solution

Technical Description

A vulnerability has been identified in Easy Chat Server, which could be exploited by remote attackers to cause a denial of service. This issue is caused by an input validation error in the "chat.ghp" script when processing an overly long "username" parameter, which could be exploited by remote attackers to crash an affected system, creating a denial of service condition.

Credits

Vulnerability reported by NetJackal.

ChangeLog

2007-08-16 : Initial release

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