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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

Base Score

Impact

Exploitability

CVSS2 Vector

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

Version

Build

Solution(s)

Symantec Encryption Management Server / Symantec PGP Universal Server

3.3.0 MP1 and prior

All

Symantec Encryption Management Server 3.3.0 MP2

 

Products Not Affected

Product

Version

Symantec Encryption Management Server

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.

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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