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TITLE:
Bilder Upload Script File Upload Vulnerability

SECUNIA ADVISORY ID:
SA40379

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/40379/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=40379

RELEASE DATE:
2010-06-28

DISCUSS ADVISORY:
http://secunia.com/advisories/40379/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/40379/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=40379

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been discovered in Bilder Upload Script, which
can be exploited by malicious people to compromise a vulnerable
system.

The vulnerability is caused due to an error in processing.php as it
allows uploads of files with multiple extensions to a folder inside
the web root. This can be exploited to e.g. execute arbitrary PHP
code by uploading a specially crafted PHP script that contains the
GIF magic number.

Successful exploitation requires a certain server configuration (e.g.
an Apache server with the "mod_mime" module installed).

The vulnerability is confirmed in version 1.09. Other versions may
also be affected.

SOLUTION:
Restrict access to the "img/" directory (e.g. via .htaccess)

PROVIDED AND/OR DISCOVERED BY:
Mr.Benladen

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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

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Definitions: (Criticality, Where etc.)
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Secunia NEVER sends attached files with advisories.
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