Secunia Research: Lotus Notes Multiple Archive Handling Directory Traversal

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                     Secunia Research 10/02/2006

    - Lotus Notes Multiple Archive Handling Directory Traversal  -

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Table of Contents

Affected Software....................................................1
Severity.............................................................2
Description of Vulnerability.........................................3
Solution.............................................................4
Time Table...........................................................5
Credits..............................................................6
References...........................................................7
About Secunia........................................................8
Verification.........................................................9

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1) Affected Software 

* Lotus Notes 6.5.4
* Lotus Notes 7.0

Other versions may also be affected.

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2) Severity 

Rating: Moderately Critical
Impact: Security Bypass
Where:  Remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in Lotus Notes, which
can be exploited by malicious people to bypass certain security
restrictions. 

The vulnerability is caused due to directory traversal errors in
kvarcve.dll when generating the preview of a compressed file from 
ZIP, UUE and TAR archives. This can be exploited to delete arbitrary
files that are accessible to the Notes user.

Successful exploitation requires that the user is e.g. tricked into
previewing a compressed file with directory traversal sequences in
its filename from within the Notes attachment viewer.

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4) Solution 

Update to version 6.5.5 or 7.0.1.

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5) Time Table 

04/08/2005 - Initial vendor notification.
04/08/2005 - Initial vendor response.
10/02/2006 - Public disclosure.

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6) Credits 

Discovered by Tan Chew Keong and Carsten Eiram, Secunia Research.

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7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned 
candidate number CAN-2005-2619 for the vulnerability.

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8) About Secunia 

Secunia collects, validates, assesses, and writes advisories regarding 
all the latest software vulnerabilities disclosed to the public. These 
advisories are gathered in a publicly available database at the 
Secunia website: 

http://secunia.com/

Secunia offers services to our customers enabling them to receive all 
relevant vulnerability information to their specific system 
configuration. 

Secunia offers a FREE mailing list called Secunia Security Advisories: 

http://secunia.com/secunia_security_advisories/

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9) Verification 

Please verify this advisory by visiting the Secunia website:
http://secunia.com/secunia_research/2005-30/advisory/

Complete list of vulnerability reports published by Secunia Research:
http://secunia.com/secunia_research/

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