Luigi Auriemma has reported some vulnerabilities in Armed Assault, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
1) A calculation error in the processing of voice packets sent to UDP port 2305 can be exploited to crash an affected server.
2) An error in the processing of join packets sent to UDP port 2302 can be exploited to terminate the server or cause a high CPU load.
3) A format string error in the processing of join packets sent to UDP port 2302 can be exploited by sending a specially crafted join packet with a nickname or datafile field containing format string specifiers.
Successful exploitation may allow execution of arbitrary code.
The vulnerabilities are reported in Armed Assault version 1.14 and Armed Assault 2 version 1.02. Other versions may also be affected.
Solution: Restrict access to UDP port 2305 and UDP port 2302 to trusted users only.
Provided and/or discovered by: Luigi Auriemma
Original Advisory: http://aluigi.altervista.org/adv/armadioz-adv.txt
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Subject: Armed Assault Multiple Vulnerabilities
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