OS Command Injection in SpamTitan - CVE-2020-11698

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation of the parameter community on the page snmp-x.php. A remote unauthenticated attacker can pass specially crafted data to the application and inject commands into the file snmpd.conf that would allow executing commands on the target server.

Note, exploitation of vulnerability for version 7.03 requires authentication. Other affected versions allow unauthenticated command execution.

How to mitigate CVE-2020-11698

Sources

• http://packetstormsecurity.com/files/159470/SpamTitan-7.07-Remote-Code-Execution.html
• https://github.com/felmoltor
• https://sensepost.com/blog/2020/clash-of-the-spamtitan/
• https://twitter.com/felmoltor
• https://www.spamtitan.com/