Mercury SMTPD CRAM-MD5 Pre-Auth Buffer Overflow Exploit

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of software utilizing the Mercury Mail Transport System. The vulnerability is caused due to a boundary error within Mercury/32 SMTP Server Module (mercurys.dll) when processing arguments to the AUTH CRAM-MD5 command. This can be exploited to cause a stack-based buffer overflow via an overly long, specially-crafted argument passed to the affected command. Authentication is not required to exploit this vulnerability.
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Released Date: 
Thursday, February 14, 2008 - 18:00