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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.
Vulnerability Assessment Details
Check for the version of the shadow packages
Detailed Explanation for this Vulnerability Assessment
Updated shadow-utils packages are now available. These updated packages
correct a bug that caused the useradd tool to create mail spools with
The shadow-utils package includes programs for converting UNIX password
files to the shadow password format, plus programs for managing user and
group accounts. One of these programs is useradd, which is used to create
or update new user information.
When creating a user account, the version of useradd included in Red Hat
packages creates a mail spool file with incorrectly-set group ownership.
Instead of setting the file's group ownership to the "mail" group, it is
set to the user's primary group.
On systems where other users share the same primary group, this would permit
those users to be able to read and write other user mailboxes.
These errata packages contain an updated patch to useradd. Where a mail
group exists, mailboxes will be created with group mail having read and
write permissions. Otherwise the mailbox will be created without group
read and write permissions.
All users are advised to upgrade to these updated packages and also to
check the /var/spool/mail directory to ensure that mailboxes have correct
Solution : http://rhn.redhat.com/errata/RHSA-2003-058.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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|HP ProLiant MicroServer G7 N40L 8GB RAM, ,AMD Turion II Home Server
|SUPERMICRO X7DVL-E MOTHERBOARD SERVER BOARD SUPER MICRO COMPUTER
|ABLECOM 980 Watt Switching Power Power Supply PWS-981-1S Super Micro Server
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