AOH :: HP Unsorted Z :: B06-2626.HTM

Zipcentral zip file handling buffer overflow vulnerability



Secunia Research: ZipCentral ZIP File Handling Buffer Overflow Vulnerability
Secunia Research: ZipCentral ZIP File Handling Buffer Overflow Vulnerability



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                    Secunia Research 30/05/2006

   - ZipCentral ZIP File Handling Buffer Overflow Vulnerability -

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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 

* ZipCentral 4.01 

Other versions may also be affected.

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2) Severity 

Rating: Moderately Critical
Impact: System Access
Where:  Remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in ZipCentral, which
can be exploited by malicious people to compromise a user's system.

The vulnerability is caused due to a boundary error within the handling
of filenames in a ZIP archive. This can be exploited to cause a
stack-based buffer overflow when a malicious ZIP archive containing a
file with an overly long filename is extracted.

Successful exploitation allows arbitrary code execution.

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4) Solution 

Do not extract ZIP files from untrusted sources.

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5) Time Table 

25/05/2006 - Initial vendor notification.
30/05/2006 - Second vendor notification.
30/05/2006 - Public disclosure (email bounced).

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6) Credits 

Discovered by Tan Chew Keong, Secunia Research.

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7) References

The Common Vulnerabilities and Exposures (CVE) project has assigned
CVE-2006-2439 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/2006-35/advisory/ 

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

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