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Insecure Library Loading
Highly critical

Quake2 Engine Multiple Vulnerabilities

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Release Date:  2004-10-28    Views:  10,992

Secunia Advisory SA13013

Where:

From remote

Impact:

Spoofing, Manipulation of data, Exposure of sensitive information, DoS, System access

Solution Status:

Unpatched

CVE Reference(s):

No CVE references.

Description


Multiple vulnerabilities have been reported in Quake2 engine, which can be exploited by malicious people to cause a DoS (Denial of Service), potentially execute arbitrary code, disclose sensitive information, conduct spoofing attacks, and corrupt server data for other clients.

1) An input validation error when handling "Configstrings" and "Baselines" in the connection process can be exploited to cause the server to crash by sending a specially crafted request with a negative offset.

2) A boundary error when parsing command packets can be exploited to cause a buffer overflow and potentially execute arbitrary code by sending a specially crafted UDP datagram.

3) An input validation error when requesting missing files such as maps from a server running Windows can be exploited to download sensitive files by supplying a specially crafted path.

4) An input validation error when requesting missing files from a server running Linux can be exploited to cause a server to exit by requesting a valid directory.

5) An error in the handling of userinfo from the client can be exploited to spoof the client's IP address by sending a specially crafted overly long userinfo, which gets truncated by the server.

6) A design weakness can be exploited to cause a server to stop accepting new clients by continuously sending multiple join requests.

The vulnerabilities have been reported in version 3.2.x of the released open source version. Other versions may also be affected.


Solution:
Host only games on trusted networks.

Provided and/or discovered by:
1-5) Richard Stanway
6) Luigi Auriemma.

Original Advisory:
http://secur1ty.net/advisories/001
http://aluigi.altervista.org/fakep.htm

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Quake2 Engine Multiple Vulnerabilities

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