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TITLE:
dompdf "input_file" Local File Disclosure Vulnerability

SECUNIA ADVISORY ID:
SA36022

VERIFY ADVISORY:
http://secunia.com/advisories/36022/

DESCRIPTION:
A vulnerability has been discovered in dompdf, which can be exploited
by malicious people to disclose sensitive information.

Input passed to the "input_file" parameter in dompdf.php is not
properly sanitised before being used to generate PDF files. This can
be exploited to read arbitrary files from local resources via
directory traversal attacks.

The vulnerability is confirmed in version 0.5.1. Other versions may
also be affected.

SOLUTION:
Restrict access to the dompdf.php file (e.g. via .htaccess).

PROVIDED AND/OR DISCOVERED BY:
Aung Khant, YGN Ethical Hacker Group

ORIGINAL ADVISORY:
YGN:
http://archives.neohapsis.com/archives/fulldisclosure/2009-07/0417.html

dompdf:
http://www.digitaljunkies.ca/dompdf/index.php

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