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Security Advisories Relating to Symantec Products - Symantec VIP Access DLL Pre-Loading

SYM17-007

August 21, 2017

Overview | Issues | Affected Products | Mitigation | Best Practices | Acknowledgements | Revisions

 

 

OVERVIEW

Symantec has released an update to address an issue that was discovered in Symantec Validation & Identification Protection (VIP) Access for Desktop.

 

Highest severity issue: Medium
Number of issues: 1

 

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ISSUES

This update applies to the following issues:

TITLE

CVE

SEVERITY

Symantec VIP Access for Desktop DLL Pre-Loading

CVE-2017-6329

Medium

 

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AFFECTED PRODUCTS

Symantec has verified the issues and addressed them in product updates as outlined below.

 

Enterprise

The following Symantec enterprise products are affected.

PRODUCT

SOLUTION

Symantec VIP Access for Desktop prior to 2.2.4

Upgrade to VIP Access for Desktop version 2.2.4.

 

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ISSUE DETAILS

 

Symantec VIP Access for Desktop DLL Pre-Loading

CVE-2017-6329

BID: 100200

Severity: Medium (CVSSv3: 6.8) (AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)

Impact: Code execution

Exploitation: None

Date patched: August 16, 2017
 

Symantec VIP Access for Desktop can be susceptible to a DLL Pre-Loading vulnerability. These types of issues occur when an application looks to call a DLL for execution and an attacker provides a malicious DLL to use instead. Depending on how the application is configured, the application will generally follow a specific search path to locate the DLL. The exploitation of the vulnerability manifests as a simple file write (or potentially an over-write) which results in a foreign executable running under the context of the application.

 

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MITIGATION

This issue was validated by the product team engineers. A Symantec VIP Access for Windows Desktop update, version 2.2.4, has been released which addresses the aforementioned vulnerability. Note that the latest Symantec VIP release and patches are available to customers through normal support channels. At this time, Symantec is not aware of any exploitations or adverse customer impact from this issue.

 

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BEST PRACTICES

Symantec recommends the following measures to reduce risk of attack:

  • Restrict access to administrative or management systems to authorized privileged users.
  • Restrict remote access to trusted/authorized systems only.
  • Run under the principle of least privilege, where possible, to limit the impact of potential exploit.
  • Keep all operating systems and applications current with vendor patches.
  • Follow a multi-layered approach to security. At a minimum, run both firewall and anti-malware applications 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 the detection of attacks or malicious activity related to the exploitation of latent vulnerabilities.

 

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ACKNOWLEDGEMENTS

  • Kushal Arvind Shah of Fortinet's FortiGuard Labs: kshah@fortinet.com (CVE-2017-6329)

 

 

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REVISIONS

  • None

 

 

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REPORTING VULNERABILITIES TO SYMANTEC

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.
Symantec has developed a Software Security Vulnerability Management Process document outlining the process we follow in addressing suspected vulnerabilities in our products.
Symantec Corporation firmly believes in a proactive approach to secure software development and implements security review into various stages of the software development process. Additionally, Symantec is committed to the security of its products and services as well as to its customers’ data. Symantec is committed to continually improving its software security process.
This document provides an overview of the current Secure Development Lifecycle (SDLC) practice applicable to Symantec’s product and service teams as well as other software security related activities and policies used by such teams. This document is intended as a summary and does not represent a comprehensive list of security testing and practices conducted by Symantec in the software development process.
Please contact secure@symantec.com if you believe you have discovered a security issue in a Symantec product. A member of the Symantec Software 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 Software Security PGP key can be found at the following location:
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 Software Security. Reprinting the whole or part of this alert in any medium other than electronically requires permission from secure@symantec.com.
Last modified on: August 21, 2017
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