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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> SMTP problems >> Sendmail 8.8.8 to 8.12.7 Double Pipe Access Validation Vulnerability

Vulnerability Assessment Details

Sendmail 8.8.8 to 8.12.7 Double Pipe Access Validation Vulnerability

Vulnerability Assessment Summary
Checks sendmail's version number

Detailed Explanation for this Vulnerability Assessment

smrsh (supplied by Sendmail) is designed to prevent the execution of
commands outside of the restricted environment. However, when commands
are entered using either double pipes (||) or a mixture of dot
and slash characters, a user may be able to bypass the checks
performed by smrsh. This can lead to the execution of commands
outside of the restricted environment.

Solution : upgrade to the latest version of Sendmail (or at least 8.12.8).
Network Security Threat Level: Medium

Networks Security ID: 5845

Vulnerability Assessment Copyright: This script is Copyright (C) 2003 StrongHoldNet

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