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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
Detailed Explanation for this Vulnerability Assessment
Several vulnerabilities have been discovered in Squirrelmail, a
commonly used webmail system. The Common Vulnerabilities and
Exposures project identifies the following problems:
Martijn Brinkers and Ben Maurer found a flaw in webmail.php that
permits remote attackers to inject arbitrary web pages into the right
frame via a URL in the right_frame parameter.
Martijn Brinkers and Scott Hughes discovered an interpretation
conflict in the MagicHTML filter that permits remote attackers to
conduct cross-site scripting (XSS) attacks via style sheet
specifiers with invalid (1) "/*" and "*/" comments, or (2) slashes
inside the "url" keyword, which is processed by some web browsers
including Internet Explorer.
Vicente Aguilera of Internet Security Auditors, S.L. discovered a
CRLF injection vulnerability, which permits remote attackers to
inject arbitrary IMAP commands via newline characters in the mailbox
parameter of the sqimap_mailbox_select command, aka "IMAP
injection." There's no known way to exploit this yet.
For the old stable distribution (woody) these problems have been fixed in
For the stable distribution (sarge) these problems have been fixed in
For the unstable distribution (sid) these problems have been fixed in
We recommend that you upgrade your squirrelmail package.
Solution : http://www.debian.org/security/2006/dsa-988
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is (C) 2007 Michel Arboi
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