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AUSCERT External Security Bulletin Redistribution
ESB-2015.1724
Security Advisories Relating to Symantec Products - Symantec Data Loss
Prevention Enforce Server Administration Console Cross-site
Scripting, Cross-site Request Forgery Issues
30 June 2015
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AusCERT Security Bulletin Summary
---------------------------------
Product: Symantec Data Loss Prevention Enforce Server
Publisher: Symantec
Operating System: Red Hat
Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Cross-site Request Forgery -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2015-1485 CVE-2014-9230
Original Bulletin:
https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20150622_00
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Security Advisories Relating to Symantec Products - Symantec Data Loss
Prevention Enforce Server Administration Console Cross-site Scripting,
Cross-site Request Forgery Issues
SYM15-006
June 22, 2015
Revisions
None
Severity
CVSS2 Impact Exploitability CVSS2 Vector
Base Score
Symantec Data Loss Prevention Enforce Server administration console XSS - Medium
5.1 6.4 4.9 AV:N/AC:H/Au:N/C:P/I:P/A:P
Symantec Data Loss Prevention Enforce Server administration console CSRF - Medium
5.1 6.4 4.9 AV:N/AC:M/Au:N/C:P/I:P/A:P
Overview
Symantec's Data Loss Prevention (DLP) Management Console is potentially
susceptible to persistent cross-site scripting (XSS) issues and a possible
cross-site request forgery (CSRF) in the Enforce Server administration
console. Successful exploitation could result in potential unauthorized
actions directed against the console potentially with elevated privileges.
Affected Products
Product Version Solution(s)
Symantec Data Loss Prevention 12.5.1 and prior Migrate to Symantec Data
Loss Prevention 12.5.2 or
later release
Details
Symantec was notified of XSS issues as well as possible CSRF issues within the
Symantec Data Loss Prevention Enforce Server administration console.
Additionally, Symantec DLP engineers have been doing extensive internal
reviews that identified and addressed other areas susceptible to similar
issues.
Both XSS and CSRF issues are the result of insufficient validation/sanitation
of user input and server output. A successful exploitation of these issues in
Enforce Server administration console pages used to manage DLP is possible
should a properly authenticated user click on a maliciously-crafted link.
Depending on the nature of the link it is possible for execution of arbitrary
html requests and scripts in the context of the targeted user. The
administration console normally allows access to only specified
users/administrators with varying levels of access depending on their
requirements.
Cross-site scripting and cross-site request forgery are trust exploitations
requiring enticing a previously authenticated user to click on a link in a
context such as a website URL or an HTML email. To be exposed to other than
another authorized network user, an external attacker would need to
successfully entice an authorized, privileged or limited-access Enforce Server
console user to visit a malicious web site or click on a malicious HTML link
in an email in any attempts to take advantage of this issue.
In a typical installation the Symantec Data Loss Prevention Enforce Server
administration console should not be accessible external to the network
environment and access should be restricted to specified users/administrators.
Web browsers used by authorized users to manage Symantec Data Loss Prevention
Enforce Server should never be used for casual browsing of external web sites
during an active administrative session. These restrictions greatly reduce
exposure to external attempts of this type.
Symantec Response
Symantec engineers have verified and addressed these external submissions as
well as those identified through internal reviews. Symantec strongly
recommends Symantec Data Loss Prevention customers update to the latest
release of Symantec Data Loss Prevention as indicated in the above product
table. Symantec knows of no exploitation of or adverse customer impact from
these issues.
Symantec Data Loss Prevention 12.5.2 and 14.0 are currently available through
customer normal download channels.
Mitigation/Workaround
Since exploitation depends on user interaction (phishing, clicking on
untrusted html link), customers are strongly encouraged to follow security
best practices.
Specifically, during an active DLP administration session:
Avoid casual surfing in different tabs of the browser session
Avoid clicking html links in emails or any other electronic document that may
launch an additional browser instance
Best Practices
Symantec strongly recommends as part of normal best practices:
Restrict access to administration or management systems to privileged users.
Avoid casual surfing in different tabs when using the browser to administer
systems.
Do not click on html links in emails.
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 would like to thank Mike Czumak (@SecuritySift) for reporting XSS and
CSRF issues; Pieter Hiele for reporting XSS issues and both for coordinating
with us as we resolved them.
References
BID: Security Focus, http://www.securityfocus.com, has assigned Bugtraq ID
(BID) to these issues for inclusion in the Security Focus vulnerability
database.
CVE: These issues are candidates for inclusion in the CVE list
(http://cve.mitre.org), which standardizes names for security problems.
CVE BID Description
CVE-2014-9230 75288 Symantec Data Loss Prevention Enforce Server administration console XSS
CVE-2015-1485 75289 Symantec Data Loss Prevention Enforce Server administration console CSRF
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) 2015 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: June 22, 2015
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