Technical Description

Multiple vulnerabilities have been identified in IBM Lotus Notes, which could be exploited by attackers to disclose sensitive information, bypass security restrictions, cause a denial of service, or take complete control of an affected system.

The first issue is caused by buffer overflow errors in the Wordperfect (.wpd), Ami Pro (.sam), MS Word (.doc), FrameMaker (.mif), Applix Words (.aw), Applix Presents (.ag), Dynamic Link Library (.dll), MS Rich Text Format (.rtf), and Portable Executable (.exe) file viewers, which could be exploited by remote attackers to execute arbitrary code by tricking a user into opening a specially crafted file.

The second vulnerability is caused by an error in the Execution Control List (ECL) mechanism which, in specific situations, prevents the Execution Security Alert from being presented when either a Notes database (.nsf) or Notes template (.ntf) attachments are involved.

The third issue is caused by insecure permissions being set on the shared memory created by the application, which could allow malicious users to disclose sensitive information.

The fourth vulnerability is caused by an error when processing specially crafted SMTP messages, which could be exploited by attackers to crash a vulnerable application.

The fifth issue is caused by a buffer overflow error when processing specially crafted HTML messages, which could be exploited by attackers to execute arbitrary code by tricking a user into forwarding, replying with history, or copying a specially crafted message to the clipboard.

Affected Products

IBM Lotus Notes versions prior to 8.0
IBM Lotus Notes versions prior to 7.0.3

Solution

Upgrade to IBM Lotus Notes version 7.0.3 or 8.0 :
http://www.ibm.com/software/lotus/support/upgradecentral/index.html

References

http://www.vupen.com/english/advisories/2007/3597
http://www-1.ibm.com/support/docview.wss?uid=swg21257030
http://www-1.ibm.com/support/docview.wss?uid=swg21270884
http://www-1.ibm.com/support/docview.wss?uid=swg21271111
http://www-1.ibm.com/support/docview.wss?uid=swg21272836
http://www-1.ibm.com/support/docview.wss?uid=swg21272930
http://www-1.ibm.com/support/docview.wss?uid=swg21271957
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=604
http://www.symantec.com/content/en/us/enterprise/research/SYMSA-2007-013.txt
http://vuln.sg/lotusnotes702doc-en.html
http://vuln.sg/lotusnotes702sam-en.html
http://vuln.sg/lotusnotes702wpd-en.html
http://vuln.sg/lotusnotes702mif-en.html

Credits

Vulnerabilities reported by Tan Chew Keong, ZDI, VeriSign iDefense Labs, Ed Schaller, Ollie Whitehouse (Symantec), Dan Ritter and the VCC.

ChangeLog

2007-10-24 : Initial release

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