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             AUSCERT External Security Bulletin Redistribution

                               ESB-2016.1221
   Security Advisories Relating to Symantec Products - Symantec Endpoint
       Encryption Unquoted Service Path Local Elevation of Privilege
                                16 May 2016

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Symantec Endpoint Encryption
Publisher:         Symantec
Operating System:  Windows
Impact/Access:     Increased Privileges -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-8156  

Original Bulletin: 
   https://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&suid=20160506_00

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Security Advisories Relating to Symantec Products - Symantec Endpoint 
Encryption Unquoted Service Path Local Elevation of Privilege

SYM16-006

May 6, 2016

Revisions

None

Severity	
CVSS2 Base Score		CVSS2 Vector
Symantec Endpoint Encryption unquoted service path local elevation of privilege - Medium
6.8				AV:L/AC:L/AU:S/C:C/I:C/A:C	

CVSS3 Base Score		CVSS3 Vector
Symantec Endpoint Encryption unquoted service path local elevation of privilege - Medium
6.9				AV:P/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Overview

Symantec Endpoint Encryption (SEE) has an unquoted search path in EEDService.
This could provide a non-privileged local user the ability to successfully 
insert arbitrary code in the root path.

Affected Products

Product				Version		Build	Solution(s)

Symantec Endpoint Encryption	11.x		All	Upgrade to SEE 11.1.1


Products Not Affected

Product				Version

Symantec PGP Desktop		10.31 and later


Details

Symantec was notified of an unquoted search path issue impacting the 
EEDService deployed in Symantec Endpoint Encryption. An authorized but 
non-privileged local user could potentially leverage this issue to execute
arbitrary code with elevated privileges on the system. A successful attempt
would require the local user to be able to insert their code in the system
root path undetected by the OS or other security applications/settings where
it could potentially be executed during application startup or reboot. If 
successful, the local user's code would execute with the elevated privileges of
the application.

Symantec Response

Symantec engineers verified this issue and have resolved it in Symantec 
Endpoint Encryption 11.1.1. Symantec is not aware of exploitation of or adverse
customer impact from this issue.

Update Information

Update to SEE 11.1.1 will be available through Symantec File Connect. Customers
should apply this update to avoid potential incidents of this nature.

Best Practices

Symantec strongly recommends as part of normal best practices:

Restrict access to 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 would like to thank Darshan G Parab for reporting this to us and 
working with us as we addressed the issue.

References

BID: Security Focus, http://www.securityfocus.com, has assigned a Bugtraq ID
(BIDs) 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.

CVE		BID	Description

CVE-2015-8156	90050	Symantec Endpoint Encryption unquoted service path 
			local elevation of privilege

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: May 6, 2016

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