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Security Advisories Relating to Symantec Products - Symantec LiveUpdate Administrator 2.3 Insecure File Permissions

SYM12-009

June 15, 2012

Revision History

9/10/2012 - Version 2.3.2 released to address areas identified by Tenable Security as not completely resolved.

 

Modified CVSS2 score.  Logging onto the targeted system (authentication=single) is required to attempt to leverage issues.

 

Severity

Insecure File Permissions  Local Elevation of Privilege - Medium

CVSS2 Base Score

Impact

Exploitability

CVSS2 Vector

4.03

6.44

2.69

AV:L/AC:M/Au:S/C:P/I:P/A:P

 

Exploit Publicly Available:  Yes, Proof of Concept

 

Overview
Symantec LiveUpdate Administrator 2.3 and prior install some files with insecure file permissions during a default installation. These files allow full control permission to everyone which could result in arbitrary command execution with elevated privileges on the system.

 

Affected Products

Product

Version

Solution

Symantec LiveUpdate Administrator Windows version

2.3.1 and prior

Update to Symantec LiveUpdate Administrator Windows version 2.3.2

 

Non-Affected Products

Product

Version

Symantec Live Update Administrator

2.3.2

 

Details
Symantec was notified of insecure file permissions following a default installation of Symantec LiveUpdate Administrator.  Permissions on the installed files allow full control to 'Everyone'. An authorized but non-privileged user or an unauthorized user with access to an account on the local system hosting Symantec LiveUpdate Administrator could potentially leverage these improper permissions to read arbitrary system files with elevated privileges.  There is also a potential for the unauthorized local user to successfully overwrite arbitrary files or create scripts that execute with SYSTEM privileges. Successful exploitation could result in an unauthorized local user executing arbitrary commands with privileged access on the system.

 

Symantec Response
Symantec engineers confirmed the issue and addressed it initially in Symantec LiveUpdate Administrator 2.3.1.  Symantec LiveUpdate Administrator 2.3.1 was originally made available to customers through support channels. 

 

There were public reports suggesting that Symantec LiveUpdate Administrator 2.3.1 did NOT fully address all areas of the local permissions issue.  Symantec has released LiveUpdate Administrator 2.3.2 to fully address these concerns. Symantec recommends customers who have not yet upgraded to the latest release of Symantec LiveUpdate Administrator do so as soon as possible.

 

Symantec is not aware of any adverse customer impact from this issue.

 

Best Practices

As part of normal best practices, Symantec strongly recommends:

  • Restrict access to administration or management systems to privileged users.
  • Disable remote access or restrict it to trusted/authorized systems 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 credits Tenable Network Security, http://www.tenable.com/ for reporting the original findings further identifying weaknesses in the resulting Symantec LiveUpdate Administrator 2.3.1 release.

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: 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-2012-0304

BID 53903

Insecure File Permissions



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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.
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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

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Last modified on: June 15, 2012
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