Title: Axigen POP3 Service Remote Format String Vulnerability
Severity: CRITICAL
Description:
Axigen is a mail server designed for UNIX and UNIX-like operating systems.
Axigen is prone to a remote format-string vulnerability because it fails to properly sanitize user-supplied input before including it in the format-specifier argument of a formatted-printing function.
Specifically, the POP3 service improperly uses unsanitized, user-supplied input in the 'syslog()' function.
This issue is present only when the log type for the POP3 service has been set to 'system' and when the log level is any number with the fourth bit set.
Successfully exploiting this issue allows remote, unauthenticated attackers to execute arbitrary code with superuser privileges, since the daemon typically runs with elevated privileges. This facitates the complete compromise of affected computers.
Axigen version 2.0.0-beta1 is vulnerable to this issue; other versions may also be affected.
Affected Products:
- Gecad Technologies Axigen Mail Server 2.0.0-beta1
References:
- Axigen: Axigen Mail Server Web Site
- fugich <fugich@gmail.com>: [Full-disclosure] Axigen server version: 2.0.0-beta1 (Linux/i686) - pop3 remote
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