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Security Advisories Relating to Symantec Products - Multi-Vendor Autonomy KeyView Filter Module OLE Document Processing Overflow

SYM10-006

March 4, 2010

Revision History

None

Severity

Medium

NOTE: Many of the affected products currently run the Autonomy KeyView module out-of- process with limited privileges further reducing the impact of this issue on most affected Symantec applications
Remote Access Yes
Local Access No
Authentication Required No
Exploit publicly available No

Overview

Symantec products that ship a third-party Autonomy KeyView filter have updated the module to address a vulnerability in the processing of specifically crafted OLE documents reported against the KeyView module.

Affected Products

Product Version Build Solution(s)
Symantec Mail Security for Domino

8.0.2

8.0.1

8.0

All SMSDOM 8.0.3
Symantec Mail Security for Domino

7.5.8

7.5.7

7.5.6

7.5.5.32

7.5.4.29

7.5.3.25

All SMSDOM 7.5.9
Symantec Mail Security for Microsoft Exchange

6.0.9

6.0.8

6.0.7

6.0.6

All SMSMSE 6.0.10
Symantec Mail Security for Microsoft Exchange 5.0.13

5.0.12

5.0.11

5.0.10

All Version 5.0 and its subsequent releases reached EOSS on 9/23/2009

Upgrade to SMSMSE 6.0.10

Symantec BrightMail Gateway 8.x and earlier All BrightMail Gateway 9.0
Symantec Mail Security for SMTP (EOL) 5.0.x All
Symantec Data Loss Prevention Enforce/Detection Servers for Windows 8.1.1

9.x

10.0

All Hotfix_8.1.10.8_Windows

Symantec_DLP_9.0.3_ReleaseUpdate_Win-IN.zip - Windows Server

Hotfix_10.0.1010.18007_Windows

Symantec Data Loss Prevention Enforce/Detection Servers for Linux

8.1.1

9.x

10.0

All Hotfix_8.1.10.8_Linux

Symantec_DLP_9.0.3_ReleaseUpdate_Lin-IN.zip - Linux Server

Hotfix_10.0.1010.18007_Linux

Symantec Data Loss Prevention Endpoint Agents 8.1.1 All Hotfix_8.1.10.9
Symantec Data Loss Prevention Endpoint Agents 9.x All Symantec_DLP_9.0.3_Agent_Win-IN.zip - Agent
Symantec Data Loss Prevention Endpoint Agents 10.0 All Hotfix_10.0.1010.18007
Symantec IM Manager 2007 8.x All Update to 8.4.13
Note:

The Symantec BrightMail Gateway and Symantec Mail Security for SMTP 5.x.x run the KeyView module out-of-process so there is negligible impact from this issue. However as Symantec Mail Security for SMTP 5.x has reached End-of-Life (EOL), that product will not be updated. Customers still running SMS for SMTP 5.x should transition to the Symantec BrightMail Gateway Appliance and apply all available updates.

Software update to SBG version 9.0 is ONLY available from systems running SBG version 8.0.3

Symantec DLP 7.x Enforce/Detection Servers are affected. DLP 7.x Endpoint Agents are NOT affected.

Symantec DLP customers that need to update Symantec DLP 8.1 Enforce/Detection Servers or Endpoint Agents MUST first update to Symantec DLP v8.1.1. Following application of the v8.1.1 upgrade apply the Symantec DLP 8.1.x hotfixes identified above.

Symantec IM Manager 2007 customers running versions 8.4.12 and prior (including 8.3.x) should upgrade 8.4.13

Products Not Affected

Product Version
Symantec Mail Security for Domino SMSDOM MPE 3.2

SMSDOM 5.1

Symantec Mail Security for Microsoft Exchange All versions prior to 5.0.10
Symantec Mail Security for Microsoft Exchange All 6.0.x versions prior to 6.0.5
Symantec Data Loss Prevention Endpoint Agents 7.x

Details

iDefense Labs notified Symantec of a multi-vendor buffer overflow vulnerability reported against the Autonomy KeyView module shipped and installed with identified Symantec products. The overflow can occur during the processing of incoming specifically formatted OLE documents.

Symantec Response

Symantec product engineers have implemented updates for this issue in all affected product versions.

In many of the affected Symantec products, the Autonomy KeyView module processes have been separated from the Symantec application processes (handled out-of-process) with very limited privileges on the system. This out-of-process method specifically addresses these types of security concerns. Any attempt to exploit the Autonomy KeyView module results in process termination of the offending thread and an error message generated to and handled by the specific application.

Symantec knows of no exploitation of or adverse customer impact from these issues.

Update Information

Updates will be available from your normal support/download locations.

SMS for Domino and Microsoft Exchange updates are available through the Platinum Support Web Site for Platinum customers or through the FileConnect -Electronic Software Distribution web site.

Symantec DLP updates are available for download through secure file exchange.

Symantec IM Manager updates are available through the FileConnect -Electronic Software Distribution web site.

Workaround

Temporary Workaround for Symantec Mail Security for Domino

Installations of SMS for Domino 7.5 and 8.0 that do not utilize the Content Filtering capabilities of the product are not susceptible to this issue. SMS for Domino 7.5 and 8.0 would be susceptible only if the attachment content scanning option is enabled.

As an interim workaround, administrators unable to upgrade to the recommended solution may disable content filtering rules that contain parameters that specify scanning of attachment content. The rules do not need to be deleted, only disabled until the updated release is installed.

To disable the content filtering rules for Symantec Mail Security for Domino
  • Select the "Content Filtering" tab to display the list of current enabled rules
  • Click on the checkmark to the left of any rules that utilize attachment content filtering, changing it to a red "X", and disabling the rule


Temporary Workaround for Symantec Mail Security for Microsoft Exchange

Installations of SMS for Microsoft Exchange 5.x that do not utilize the Content Filtering capabilities of the product are not susceptible. SMS for Microsoft Exchange 5.x is susceptible only if the attachment content scanning option is enabled.

As an interim workaround, administrators unable to upgrade to the recommended solution may disable content filtering rules that contain parameters that specify scanning of attachment content. The rules do not need to be deleted, only disabled until the updated release is installed.
  • To disable the content filtering rules for SMS for Microsoft Exchange:
  • Select the "Policies" tab and then choose "Content Filtering" to display the list of currently enabled rules
  • Ensure that all rules using attachment content are "disabled"


Temporary Workaround for Symantec Mail Security and Symantec Brightmail Gateway

Risk from this vulnerability is limited on installations of SMS for SMTP and SMS Gateway in which the attachment content scanning option is enabled. However, installations that do not utilize the Content Filtering capabilities of the product are not susceptible to this issue.

As an interim workaround, administrators unable to upgrade to the recommended solution may disable content filtering rules that contain parameters that specify scanning of attachment content. The rules do not need to be deleted, only disabled until the updated release is installed.

To disable the content filtering rules for SMS for SMTP and SMS Gateway 5.x:
  • Log into the management console and navigate to:
  • Settings >> Email Scanning >> Scanning
  • Disable the item "Enable searching of non-plain text attachments for words in dictionaries", by deselecting the checkbox, and saving
  • Disable any Compliance policies with a condition "If the Attachment content . . ."


To disable the content filtering rules for SMS/SBM Gateway after 5.x:
  • Log into the management console and navigate to the SMTP Scanning Settings screen
  • Disable the item "Enable searching of non-plain text attachments for words in dictionaries", by deselecting the checkbox, and saving
  • Disable any Compliance policies with a condition:
    • "If any part of the message matches" (or "does not match") a regular expression, pattern or Record Resource.
    • "If text in Attachment content part of the message . . . "


Temporary Workaround for Symantec IM Manager

Installations of Symantec IM Manager 2007 which do not use the “Block selected file types” functionality or the entire “File Transfer” functionality are not susceptible to this issue.

Symantec IM Manager 2007 would be susceptible only if the “Block selected file types” for the File Transfer rule is enabled.

To disable the “Block selected file types” rules for Symantec IM Manager 2007
  • On the Policies tab, Edit the "File Transfer On/Off” rule to display the various file transfer rules
  • Disabled the checkbox against “Block selected file types” and click Submit
  • If there are any custom File transfer rules, perform the steps (1) and (2) for each of those rules

Best Practices

As part of normal best practices, Symantec strongly recommends:
  • 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

This issue is credited to Joshua J. Drake with iDefense Labs.

Reference

Security Focus, http://www.securityfocus.com, has assigned a Bugtraq ID (BID) 38468 to this issue for inclusion in the Security Focus vulnerability database.

This issue is a candidate for inclusion in the CVE list (http://cve.mitre.org), which standardizes names for security problems. CVE-2009-3032 has been assigned to this issue.
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.
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* 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: March 4, 2010
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