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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 openssh packages
Detailed Explanation for this Vulnerability Assessment
Updated openssh packages that fix a potential security vulnerability and
various other bugs are now available for Red Hat Enterprise Linux 3.
This update has been rated as having low security impact by the Red Hat
Security Response Team.
OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. SSH
replaces rlogin and rsh, and provides secure encrypted communications
between two untrusted hosts over an insecure network. X11 connections and
arbitrary TCP/IP ports can also be forwarded over a secure channel. Public
key authentication can be used for "passwordless" access to servers.
The scp protocol permits a server to instruct a client to write to arbitrary
files outside of the current directory. This could potentially cause a
security issue if a user uses scp to copy files from a malicious server.
The Common Vulnerabilities and Exposures project (cve.mitre.org) has
assigned the name CVE-2004-0175 to this issue.
These updated packages also correct the following bugs:
On systems where direct ssh access for the root user was disabled by
configuration (setting "PermitRootLogin no"), attempts to guess the root
password could be judged as sucessful or unsucessful by observing a delay.
On systems where the privilege separation feature was turned on, the user
resource limits were not correctly set if the configuration specified to
raise them above the defaults. It was also not possible to change an
Users of openssh should upgrade to these updated packages, which contain
backported patches to resolve these issues.
Solution : http://rhn.redhat.com/errata/RHSA-2005-106.html
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2005 Tenable Network Security
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