Secunia Research: Lighttpd Script Source Disclosure Vulnerability

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                 Secunia Research 01/03/2006

    - Lighttpd Script Source Disclosure 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

• Lighttpd version 1.4.10 for Windows.

Other versions may also be affected.

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2) Severity

Rating: Moderately Critical
Impact: Exposure of sensitive information
Where: Remote

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3) Description of Vulnerability

Secunia Research has discovered a vulnerability in Lighttpd, which
can be exploited by malicious people to disclose potentially sensitive
information.

The vulnerability is caused due to a validation error of the filename
extension supplied by the user in the URL. This can be exploited to
retrieve the source code of script files (e.g. PHP) from the server
via specially-crafted requests containing dot and space characters.

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4) Solution

Update to version 1.4.10a for Windows.

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5) Time Table

15/02/2006 - Initial vendor notification.
16/02/2006 - Initial vendor reply.
01/03/2006 - Public disclosure.

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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-2006-0814 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/2006-9/advisory/

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

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