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Netsikker nu! 2008
 
FreeProxy "Host" Header Denial of Service Vulnerability
Secunia Advisory: SA24064
Release Date: 2007-02-08
Last Update: 2007-02-09
Popularity: 5,411 views

Critical:
Less critical
Impact: DoS
Where: From local network
Solution Status: Vendor Patch

Software:FreeProxy 3.x

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CVE reference:CVE-2007-0838


Description:
Tim Brown has reported a vulnerability in FreeProxy, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to an error within the processing of "Host" HTTP headers. This can be exploited to cause the proxy service to hang and stop responding to other requests via e.g. a GET request with a specially crafted "Host" header.

The vulnerability is reported in version 3.81 build 1511. Other versions may also be affected.

Solution:
Update to build 1626 or later.

Provided and/or discovered by:
Tim Brown

Changelog:
2007-02-09: Added CVE reference.


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