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[SA20922] phpFormGenerator File Upload Vulnerability

From: Secunia Security Advisories (sec-advsecunia.com)
Date: Mon Jul 03 2006 - 05:02:05 CDT


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TITLE:
phpFormGenerator File Upload Vulnerability

SECUNIA ADVISORY ID:
SA20922

VERIFY ADVISORY:
http://secunia.com/advisories/20922/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
From remote

SOFTWARE:
phpFormGenerator 2.x
http://secunia.com/product/10748/

DESCRIPTION:
Donnie Werner has discovered a vulnerability in phpFormGenerator,
which can be exploited by malicious people to compromise a vulnerable
system.

The application allows people to create custom forms. The
vulnerability is caused due to an error in the handling of file
uploads for forms created with the "File Upload" field type. This can
be exploited to upload arbitrary files to a location inside the web
root (e.g. a malicious PHP script).

The vulnerability has been confirmed in version 2.09c. Other versions
may also be affected.

SOLUTION:
Restrict access to create forms and do not create forms with the file
upload control.

Use another product.

PROVIDED AND/OR DISCOVERED BY:
Donnie Werner, exploitlabs

ORIGINAL ADVISORY:
http://exploitlabs.com/files/advisories/EXPL-A-2006-004-phpformgen.txt

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