[SA18869] Lighttpd Case-Insensitive Filename Source Code Disclosure

TITLE:
Lighttpd Case-Insensitive Filename Source Code Disclosure

SECUNIA ADVISORY ID:
SA18869

VERIFY ADVISORY:
http://secunia.com/advisories/18869/

CRITICAL:
Moderately critical

IMPACT:
Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
lighttpd 1.x
http://secunia.com/product/4661/

DESCRIPTION:
A vulnerability has been reported 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 when it contains uppercase
characters. This can be exploited to retrieve the source code of PHP
or PERL script files from an affected system that uses
case-insenstive filesystems (e.g. Windows or HFS on MacOSX).

The vulnerability has been reported in versions 1.4.8 and prior.

SOLUTION:
Update to version 1.4.9 or later.
http://www.lighttpd.net/download/

PROVIDED AND/OR DISCOVERED BY:
The vendor credits Schmidt Ryan.

ORIGINAL ADVISORY:
http://www.lighttpd.net/news/

About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/

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