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AUSCERT External Security Bulletin Redistribution
ESB-2013.1043
Security Advisories Relating to Symantec Products - Symantec Encryption
Management Server Web Email Protection XSS
1 August 2013
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AusCERT Security Bulletin Summary
---------------------------------
Product: Symantec Encryption Management Server
Publisher: Symantec
Operating System: VMware ESX Server
Linux variants
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2013-4674
Original Bulletin:
http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=&suid=20130722_00
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Security Advisories Relating to Symantec Products - Symantec Encryption
Management Server Web Email Protection XSS
SYM13-007
July 22, 2013
Revisions
None
Severity
CVSS2 Impact Exploitability CVSS2 Vector
Base Score
Symantec Encryption Management Server Web Email Protection XSS - Medium
6.0 6.4 6.8 AV:N/AC:M/AU:S/C:P/I:P/A:P
Overview
Symantec's Encryption Management Server, previously PGP Universal Server, is
susceptible to a cross-site scripting (XSS) issue, in the web management
interface of the server. The XSS issue is in the Web Email Protection
component. This issue could allow an authenticated Web Email Protection user to
run arbitrary scripts in the context of the management console.
Affected Products
Product Symantec Encryption Management Server / Symantec PGP Universal
Server
Version 3.3.0 MP1 and prior
Build All
Solution(s) Symantec Encryption Management Server 3.3.0 MP2
Products Not Affected
Product Symantec Encryption Management Server
Version 3.3.0 MP2
Details
Symantec was notified of an XSS issue existing in the Symantec Encryption
Management Server web management interface. The issue is in the Web Email
Protection component. Web Email Protection does not properly sanitize
user-submitted HTML, which could allow arbitrary script to run in the context
of the management console. A malicious individual would require either an
authenticated Web Email Protection account, or be able to entice an
authenticated Web Email Protection user to submit a specifically-configured
encrypted email attachment. Interaction with the attached code during
decryption and viewing could trigger the arbitrary code. Successful
exploitation could potentially result in disclosure of or unauthorized access
to, sensitive information on the server.
Symantec Response
Symantec validated this issue in earlier versions of Symantec PGP Universal
Server/Encryption Management Server. Symantec Encryption Management Server
3.3.0 MP2 is not vulnerable to this issue.
Symantec is not aware of exploitation of or adverse customer impact from this issue.
Update Information
Updates are available through customers' normal download locations.
Best Practices
As part of normal best practices, Symantec strongly recommends that customers:
Restrict access of administration or management systems to privileged
users.
Restrict remote access, if required, to trusted/authorized systems only.
Run under the principle of least privilege where possible to limit the
impact of exploit by threats.
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 John Carroll - tghc.co - @n0x00, for reporting and working
with us on this issue.
References
BID: Security Focus, http://www.securityfocus.com, has assigned a Bugtraq ID
(BID) to this issue for inclusion in the Security Focus vulnerability database.
CVE: The issue is a candidate for inclusion in the CVE list
(http://cve.mitre.org), which standardizes names for security problems.
CVE BID Description
CVE-2013-4674 61290 Symantec Encryption Management Server Web
Email Protection XSS
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
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: July 22, 2013
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