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             AUSCERT External Security Bulletin Redistribution

         Symantec Encryption Desktop for OS X World-Writable Files
                          Insecure File Handling
                               25 June 2014


        AusCERT Security Bulletin Summary

Product:           Symantec Encryption Desktop
Publisher:         Symantec
Operating System:  OS X
Impact/Access:     Modify Arbitrary Files -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2014-3431  

Original Bulletin: 

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Advisories Relating to Symantec Products - Symantec Encryption 
Desktop for OS X World-Writable Files Insecure File Handling


June 20, 2014




CVSS2 Base Score	Impact	Exploitability	CVSS2 Vector

Symantec Encryption Desktop for OS X World-Writable Files Insecure File 

4.25			6.4	3.1		AV:L/AC:L/AU:S/C:P/I:P/A:P


Symantecs Encryption Desktop for OS X installs some temporary files with 
world-writable attributes during installation. In a multi-user environment, a
malicious user could manipulate these world-writable files to read and write 
files or create files with another users permissions

Product(s) Affected

Product				Version		Build	Solution

Symantec PGP Desktop for OS X	10.0.x		
				10.2.x		All	Symantec Encryption 
                                                        Desktop 10.3.2
                                                        Maintenance Pack 2

Symantec Encryption Desktop
Professional for OS X		10.3.0
				10.3.2		All	Symantec Encryption 
							Desktop 10.3.2 
							Maintenance Pack 2


Symantec was notified of Symantec Encryption Desktop for OS X installing 
temporary files with world-writeable permissions. In a multi-user environment,
a malicious user could manipulate these weak file permissions to create new 
files or change permissions on an existing file with another users permissions
whenever the targeted user accesses Symantec Encryption Desktop. This could 
potentially allow an authorized but non-privileged user to gain unauthorized 
access to or create arbitrary files with another system users potentially 
privileged access.

Symantec Response

Symantec engineers verified these finding and have released an update in 
Symantec Encryption Desktop 10.3.2 maintenance pack 2 for OS X addressing the

Update information

Customers may obtain Symantec Desktop Encryption maintenance updates through 
their normal Symantec support locations.

Best Practices

As part of normal best practices, Symantec strongly recommends:

 Restrict access to administration or management systems to privileged 

 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

 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 


Symantec would like to thank Aaron Sigel for reporting this and working with 
Symantec as we addressed it.


BID: Security Focus, http://www.securityfocus.com, has assigned a Bugtraq ID 
(BID) to this issue for inclusion in the Security Focus vulnerability 

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-2014-3431	BID 68077	Symantec Encryption Desktop for OS X 
				World-Writable Files Insecure File 

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


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
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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 
for more information.

Last modified on: June 20, 2014

- --------------------------END INCLUDED TEXT--------------------

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