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Insecure Library Loading
Highly critical

BigAnt Messenger AntServer Module Directory Traversal and Buffer Overflow

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Release Date:  2008-04-16    Last Update:  2008-07-31    Views:  7,298

Secunia Advisory SA29831

Where:

From remote

Impact:

Exposure of system information, Exposure of sensitive information, System access

Solution Status:

Vendor Patch

CVE Reference(s):

Description


Two vulnerabilities have been discovered in BigAnt Messenger, which can be exploited by malicious people to disclose certain information or compromise a vulnerable system.

1) A boundary error in the AntServer Module (AntServer.exe) can be exploited to cause a stack-based buffer overflow e.g. by sending a specially crafted, overly long HTTP GET request to default port 6080/TCP.

Successful exploitation allows execution of arbitrary code.

2) An input validation error in the AntServer Module can be exploited to e.g. download arbitrary files via directory traversal attacks.

The vulnerabilities are confirmed in version 2.2. Other versions may also be affected.


Solution:
Update to version 2.39 sp5.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1) Matteo Memelli
2) Luigi Auriemma

Original Advisory:
Matteo Memelli:
http://milw0rm.com/exploits/5451

Luigi Auriemma:
http://aluigi.altervista.org/adv/biggayant-adv.txt

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: BigAnt Messenger AntServer Module Directory Traversal and Buffer Overflow

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