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AUSCERT External Security Bulletin Redistribution
ESB-2012.0821
Symantec Web Gateway Multiple Security Issues
29 August 2012
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AusCERT Security Bulletin Summary
---------------------------------
Product: Symantec Messaging Gateway
Publisher: Symantec
Operating System: Network Appliance
VMWare ESX Server
Impact/Access: Increased Privileges -- Remote/Unauthenticated
Access Privileged Data -- Remote/Unauthenticated
Modify Arbitrary Files -- Existing Account
Cross-site Request Forgery -- Remote with User Interaction
Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2012-3581 CVE-2012-3580 CVE-2012-3579
CVE-2012-0308 CVE-2012-0307
Original Bulletin:
http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2012&suid=20120827_00
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Security Advisories Relating to Symantec Products - Symantec Messaging
Gateway Security Issues
SYM12-013
August 27, 2012
Revisions
None
Severity
CVSS2 Impact Exploitability CVSS2 Vector
Base Score
Cross Site Scripting Request Forgery (CSRF) Backdoor - High
9.3 10 8.6 AV:N/AC:M/Au:N/C:C/I:C/A:C
SSH Account Default Password Elevation of Privilege - High
7.9 10 5.5 AV:A/AC:M/Au:N/C:C/I:C/A:C
Web Application Modification - High
7.7 10 5.1 AV:A/AC:L/Au:S/C:C/I:C/A:C
Cross Site Scripting (XSS) Code Execution - High
7.5 6.4 10 AV:N/AC:L/Au:N/C:P/I:P/A:P
Information Disclosure - Low
3.3 2.9 6.5 AV:A/AC:L/Au:N/C:P/I:N/A:N
Overview
Symantec's Messaging Gateway management console is susceptible to
several security issues including cross-site scripting/cross-site
request forgery, an SSH account with a default password and potential
web application modifications. Successful exploitation could result
in unauthorized command execution on or access to the management
console and the operating system.
Product(s) Affected
Product Version Solution
Symantec Messaging Gateway 9.5.x Symantec Messaging Gateway 10.0
Details
Symantec was notified of several security issues impacting Symantec's
Messaging Gateway management console. Issues the affected versions of
Symantec Messaging Gateway may be susceptible to include:
* Multiple XSS issues as a result of insufficient
validation/sanitation of external web or incoming malicious email
content.
* A CSRF issue that, successfully exploited, could potentially allow
unauthorized administrative access.
* An SSH default passworded account that could potentially be
leveraged by an unprivileged user to attempt to gain additional
privilege access.
* The capability to potentially modify the underlying web application
with elevated privileges once attacker has gained initial access to
the Symantec Messaging Gateway management interface.
* The affected applications disclose excessive component versioning
information during successful reconnaissance that could potentially
be leveraged in future unauthorized access attempts.
In a normal installation, neither the Symantec Messaging Gateway
appliance management interface nor the system hosting the software
application would be externally accessible from the network environment
nor used to access external web sites. These restrictions reduce
exposure to the majority of these issues from external sources.
However, an authorized but unprivileged network user or an external
attacker able to successfully leverage network access or entice an
authorized user to access a malicious URL could attempt to exploit
these issues.
Symantec Response
Symantec engineers verified the issues and released an update to
address them. Symantec engineers continue to review all functionality
to further enhance the overall security of Symantec Messaging Gateway.
Symantec strongly recommends Symantec Messaging Gateway customers
update to the latest release of Symantec Messaging Gateway 10.0 at
their earliest opportunity to protect from any attempts to target these
types of issues. Symantec knows of no exploitation of or adverse
customer impact from this issue.
Symantec Messaging Gateway 10.0 is currently available through normal
update channels.
Best Practices
As part of normal best practices, Symantec strongly recommends:
* Restrict access to administration or management systems to
privileged users.
* Disable remote access if not required or restrict it to
trusted/authorized systems only.
* Where possible, limit exposure of application and web interfaces to
trusted/internal networks 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 credits Ben Williams with NGS Secure, [91]NCC Group for
reporting these issues to us and coordinating with us as we resolved
them
Symantec credits Stefan Viehböck, with SEC Consult
www.sec-consult.com for also reporting the SSH default password
account.
References
BID: Security Focus, [93]http://www.securityfocus.com, has assigned
Bugtraq IDs (BIDs) to these issues for inclusion in the Security Focus
vulnerability database.
CVE: These issues are candidates for inclusion in the CVE list
([94]http://cve.mitre.org), which standardizes names for security
problems.
CVE BID Description
CVE-2012-0307 BID 55138 Cross-Site Scripting (XSS) issues
CVE-2012-0308 BID 55137 Cross-Site Scripting Request Forgery (CSRF) Backdoor
CVE-2012-3579 BID 55143 SSH Account Default Password
CVE-2012-3580 BID 55141 Web Application Modification
CVE-2012-3581 BID 55142 Information Disclosure
__________________________________________________________________
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.
Symantec Vulnerability Response Policy
Symantec Product Vulnerability Management PGP Key Symantec Product
Vulnerability Management PGP Key
__________________________________________________________________
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.
* Signature names may have been updated to comply with an updated IPS
Signature naming convention. See
http://www.symantec.com/business/support/index?page=content&id=TECH152794&key=54619&actp=LIST
for more information.
Last modified on: August 27, 2012
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