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[Full-disclosure] GSC Voice Server Denial of Service Vulnerability
- To: <full-disclosure@xxxxxxxxxxxxxxxxx>
- Subject: [Full-disclosure] GSC Voice Server Denial of Service Vulnerability
- From: "Michael J. Gray" <mooseous@xxxxxxxxx>
- Date: Thu, 29 Sep 2011 03:22:21 -0700
Product: GSC (Game Servers Client)
Version: 2.00 Build 3017
Website: http://getgsc.com
By inspecting the network traffic of messages to voice servers one can see
that ASCII strings are prefixed with their length as a 32-bit signed
integer. Simply modifying this to any length in excess of the actual
string's length will cause a denial of service to that voice server by
crashing it. This may be a precursor to a buffer overflow vulnerability, but
it appears not to be exploitable in this way at this time.
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