CVE-2021-20038

A Stack-based buffer overflow vulnerability in SMA100 Apache httpd server’s mod_cgi module environment variables allows a remote unauthenticated attacker to potentially execute code as a ‘nobody’ user in the appliance. This vulnerability affected SMA 200, 210, 400, 410 and 500v appliances firmware 10.2.0.8-37sv, 10.2.1.1-19sv, 10.2.1.2-24sv and earlier versions.

Recent assessments:

jbaines-r7 at January 11, 2022 2:19pm UTC reported:

This unauthenticated and remote stack-based buffer overflow allows an attacker to execute code on the remote SMA 100 series target. Exploitation can be a challenge though. For additional details, see the Rapid7 analysis.

Assessed Attacker Value: 4
Assessed Attacker Value: 4Assessed Attacker Value: 2