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Vulnerability Assessment & Network Security Forums |
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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 >> Red Hat Local Security Checks >> RHSA-2004-304: pam Vulnerability Assessment Details
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RHSA-2004-304: pam |
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Check for the version of the pam packages Detailed Explanation for this Vulnerability Assessment Updated pam packages that fix a security vulnerability are now available for Red Hat Enterprise Linux 2.1. PAM (Pluggable Authentication Modules) is a system security tool that permits system administrators to set an authentication policy without having to recompile programs that handle authentication. These updates fix a potential security problem present in the pam_wheel module. These updates correct a bug in the pam_lastlog module which prevented it from properly manipulating the /var/log/lastlog entry for users with very high user IDs. The pam_wheel module is used to restrict access to a particular service based on group membership. If the pam_wheel module was used with the "trust" option enabled, but without the "use_uid" option, any local user would be able to spoof the username returned by getlogin(). The user could therefore gain access to a superuser account without supplying a password. In Red Hat Enterprise Linux 2.1, pam_wheel is not used by default. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CVE-2003-0388 to this issue. When manipulating the entry in /var/log/lastlog, which corresponds to a given user, the pam_lastlog module calculates the location of the entry by multiplying the UID and the length of an entry in the file. On some systems, the result of this calculation would mistakenly be truncated to 32 bits for users with sufficiently high UIDs. All users of pam should upgrade to these updated packages, which resolve these issues. Solution : http://rhn.redhat.com/errata/RHSA-2004-304.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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Cables, Connectors |
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