hempel has discovered a vulnerability in the AXIGEN Mail Server, which can be exploited by malicious people to cause a DoS (Denial of Service) or to potentially compromise a vulnerable system.
The vulnerability is caused due to a format string error within the AXIMilter module when parsing mail data. This can be exploited by sending specially crafted data containing format string specifiers to the TCP port on which AXIMilter is listening.
NOTE: Similar vulnerabilities reportedly affect the AxigenDK Verifier (axidkd) and the AxigenDK Signer (axidksd).
The vulnerability is confirmed in version 5.0.2. Prior versions may also be affected.
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Subject: AXIGEN Mail Server AXIMilter Format String Vulnerability
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