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AUSCERT External Security Bulletin Redistribution
ESB-2011.0351
Symantec LiveUpdate Administrator Cross-Site Request Forgery
29 March 2011
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AusCERT Security Bulletin Summary
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Product: Symantec LiveUpdate Administrator
Publisher: Symantec
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Cross-site Request Forgery -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2011-0545
Original Bulletin:
http://www.symantec.com/business/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2011&suid=20110321_00
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Security Advisories Relating to Symantec Products - Symantec LiveUpdate
Administrator Cross-Site Request Forgery
SYM11-005
March 21, 2011
Revision History
None
Severity
Medium
CVSS2 Base Score: 5.39
Impact 6.44, Exploitability 5.54
CVSS2 Vector: AV:A/AC:M/Au:N/C:P/I:P/A:P
Exploit Publicly Available: No
Overview
Symantecs LiveUpdate Administrator (LUA) is susceptible to a cross-site request
forgery vulnerability which could result in the execution of HTML or script code
in the context of the admins browser.
Product(s) Affected
Product Version Solution
Symantec LiveUpdate Administrator 2.2.2.9 and earlier Update to LUA 2.3
Details
Symantecs LiveUpdate Administrator provides infrastructure support for content
distribution. Symantec was notified of a cross-site request forgery
vulnerability in the management login GUI page.
The login interface fails to properly filter/validate variables in external
input.
In a normal installation, the affected management interface should not be
accessible external to the network. An authorized but malicious network user or
an unauthorized/unprivileged attacker able to gain access to the network and
application management interface could attempt to exploit the issue.
Exploitation of this vulnerability requires that once the malicious entry has
been submitted to the event log, an authorized admin must sign on to the
management interface GUI and access the event log page to trigger the exploit
attempt. If successfully accomplished, exploitation could possibly result in
unauthorized command execution potentially to include application compromise.
Symantec Response
Symantec engineers have verified this issue and released an update to address
it. This issue is resolved in Symantec LiveUpdate Administrator version 2.3
which can be obtained by contacting your Symantec Technical Support. Symantec
recommends all customers ensure the latest Symantec LiveUpdate Administrator
2.3 is installed to protect against threats of this nature.
Symantec is not aware of any exploitation of, or adverse customer impact from
this issue.
Mitigation
Symantec Security Response has created an IPS signature,
24077 - "HTTP Symantec LiveUpdate Administrator CSS"
that detects and blocks attempts to exploit this issue. Signature is available
through normal Symantec Security Updates.
Best Practices
As part of normal best practices, Symantec strongly recommends:
* Restrict access to administration or management systems to privileged
users.
* Disable remote access or restrict to trusted/authorized systems only.
* Keep all operating systems and applications updated with the latest
vendor patches.
* Follow a multi-layered approach to security. Run both firewall and
anti-malware applications, at a minimum, to provide multiple points of
detection and protection to both inbound and outbound threats.
* Deploy network and host-based intrusion detection systems to monitor
network traffic for signs of anomalous or suspicious activity. This may
aid in detection of attacks or malicious activity related to exploitation
of latent vulnerabilities.
Credit
Symantec would like to thank Nikolas Sotiriu, nikolas sotiriu - it services,
for reporting this issue and coordinating with us while Symantec resolved it.
References
BID: Security Focus, http://www.securityfocus.com, has assigned a Bugtraq ID
(BID) 46856 to this issue for inclusion in the Security Focus vulnerability
database.
CVE: This issue is a candidate for inclusion in the CVE list
(http://cve.mitre.org), which standardizes names for security problems. The
CVE initiative has assigned CVE-2011-0545.
Symantec takes the security and proper functionality of our products very
seriously. As founding members of the Organization for Internet Safety
(OISafety), Symantec supports and follows responsible disclosure guidelines.
Please contact secure@symantec.com if you feel you have discovered a security
issue in a Symantec product. A member of the Symantec Product Security team
will contact you regarding your submission to coordinate any required response.
Symantec strongly recommends using encrypted email for reporting vulnerability
information to secure@symantec.com. The Symantec Product Security PGP key can
be found at the location below.
Symantec has developed a Product Vulnerability Response document outlining the
process we follow in addressing suspected vulnerabilities in our products. This
document is available below.
Copyright (c) by Symantec Corp.
Permission to redistribute this alert electronically is granted as long as it
is not edited in any way unless authorized by Symantec Product Security.
Reprinting the whole or part of this alert in any medium other than
electronically requires permission from secure@symantec.com
Disclaimer
The information in the advisory is believed to be accurate at the time of
publishing based on currently available information. Use of the information
constitutes acceptance for use in an AS IS condition. There are no warranties
with regard to this information. Neither the author nor the publisher accepts
any liability for any direct, indirect, or consequential loss or damage
arising from use of, or reliance on, this information.
Symantec, Symantec products, Symantec Product Security, and secure@symantec.com
are registered trademarks of Symantec Corp. and/or affiliated companies in the
United States and other countries. All other registered and unregistered
trademarks represented in this document are the sole property of their
respective companies/owners.
Last modified on: March 21, 2011
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