Secunia Security Advisory - Dr. Crash has discovered a vulnerability in Sava's GuestBook, which can be exploited by malicious people to disclose sensitive information.
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TITLE:
Sava's GuestBook "action" Local File Inclusion
SECUNIA ADVISORY ID:
SA29592
VERIFY ADVISORY:
http://secunia.com/advisories/29592/
CRITICAL:
Moderately critical
IMPACT:
Exposure of system information, Exposure of sensitive information
WHERE:
>From remote
SOFTWARE:
Sava's Guestbook 2.x
http://secunia.com/product/18129/
DESCRIPTION:
Dr. Crash has discovered a vulnerability in Sava's GuestBook, which
can be exploited by malicious people to disclose sensitive
information.
Input passed to the "action" parameter in index.php is not properly
verified before being used to include files. This can be exploited to
include arbitrary files from local resources.
Successful exploitation requires that "magic_quotes_gpc" is
disabled.
The vulnerability is confirmed in version 2.0. Other versions may
also be affected.
SOLUTION:
Edit the source code to ensure that input is properly verified.
PROVIDED AND/OR DISCOVERED BY:
Dr. Crash, IRCRASH
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