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Microsoft Capicom ActiveX Control Remote Code Execution Vulnerability

Risk

High

Date Discovered

May 8, 2007

Description

The Microsoft CAPICOM ActiveX control is prone to a remote code-execution vulnerability. An attacker could exploit this issue to execute code in the context of the user visiting a malicious web page.

Technologies Affected

  • Microsoft BizTalk Server 2004 Developer Edition SP1
  • Microsoft BizTalk Server 2004 Developer Edition SP2
  • Microsoft BizTalk Server 2004 Enterprise Edition SP1
  • Microsoft BizTalk Server 2004 Enterprise Edition SP2
  • Microsoft BizTalk Server 2004 Partner Edition SP1
  • Microsoft BizTalk Server 2004 Partner Edition SP2
  • Microsoft BizTalk Server 2004 Standard Edition SP1
  • Microsoft BizTalk Server 2004 Standard Edition SP2
  • Microsoft Capicom ActiveX Control
  • Microsoft Platform SDK : Capicom ActiveX Control

Recommendations

Run all software as a nonprivileged user with minimal access rights.

To reduce the impact of latent vulnerabilities, always run non-administrative software as an unprivileged user with minimal access rights.

Do not follow links provided by unknown or untrusted sources.

Attackers could exploit this vulnerability by enticing a user to visit a malicious website. Do not follow links provided by sources of questionable integrity.

Set web browser security to disable the execution of script code or active content.

Since a successful exploit of this issue allows malicious code to execute in web clients, consider disabling support for script code and active content within the client browser. Note that this mitigation tactic might adversely affect legitimate websites that rely on the execution of browser-based script code.

Do not open email messages from unknown or untrusted individuals.

Attackers could exploit this vulnerability through HTML email messages. Never accept any email from sources of questionable integrity.
Microsoft has released an advisory and fixes to address this issue. Please see the references for more information.

Credits

Chris Ries of VigilantMinds Inc. is credited with discover of this issue.
Copyright © Symantec Corporation.
Permission to redistribute this alert electronically is granted as long as it is not edited in any way unless authorized by Symantec Security Response. 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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