Mod_NTLM 0.x - Authorisation Format String

Author: Matthew Murphy
type: dos
platform: multiple
port: 
date_added: 2003-04-21 
date_updated: 2012-11-06 
verified: 1 
codes: OSVDB-55814 
tags: 
aliases:  
screenshot_url:  
application_url: 

source: https://www.securityfocus.com/bid/7393/info

A format string vulnerability has been reported for the mod_ntlm Apache module. The problem occurs when logging authentication strings passed in HTTP requests. By passing malicious format specifiers in a request, it may be possibile for an attacker to corrupt sensitive locations in memory. This may result in a denial of service or under certain circumstances could allow an attacker to execute arbitrary code.

GET / HTTP/1.0
Authorization: %n%n%n%n