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This script is Copyright (C) 2004-2014 Tenable Network Security, Inc.
The remote Red Hat host is missing one or more security updates.
The sendmail packages shipped with Red Hat Linux Advanced Server have
a security bug if sendmail is configured to use smrsh. This security
errata release fixes the problem.
[Updated 06 Feb 2003] Added fixed packages for Advanced Workstation
SMRSH (the SendMail Restricted SHell) is a /bin/sh replacement for
Sendmail. It provides the ability to limit the set of executable
programs available to Sendmail.
A bug in the version of smrsh packaged as part of Sendmail 8.12.6 and
8.11.6 allows attackers to bypass shrsh's intended restrictions. This
can be done by inserting additional commands after '||' or '/'
characters, which are not properly filtered or verified. A sucessful
attack would allow an attacker who has a local account on a system to
execute arbitrary binaries as themselves by utilizing their .forward
Because sendmail as shipped with Red Hat Linux Advanced Server is not
configured to use smrsh, this issue only affects users who have
customized their sendmail configuration to use smrsh.
Users who have configured sendmail to use smrsh should update to these
errata packages which contain a backported security fix, and are
therefore not vulnerable to this issue.
See also :
Update the affected packages.
Risk factor :
Medium / CVSS Base Score : 4.6
Family: Red Hat Local Security Checks
Nessus Plugin ID: 12335 ()
CVE ID: CVE-2002-1165
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