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Insecure Library Loading
Highly critical

PHP-Update Multiple Vulnerabilities

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Release Date:  2006-12-28    Last Update:  2007-01-10    Views:  9,563

Secunia Advisory SA23486

Where:

From remote

Impact:

Security Bypass, Manipulation of data, System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Some vulnerabilities have been reported in PHP-Update, which can be exploited by malicious people to bypass certain security restrictions and conduct SQL injection attacks and by malicious users to compromise a vulnerable system.

1) An insecure authentication method in admin/uploads.php can be exploited to bypass authentication and upload files by passing the value "1" to the "rights[7]" parameter.

2) The admin/uploads.php script fails to validate the extension of an uploaded file, which can be exploited to upload files with arbitrary extensions (e.g. ".php") and execute arbitrary PHP code on the server.

Successful exploitation requires valid user credentials, but can be combined with #1.

3) Input passed to the "newname" parameter in code/guestadd.php is not properly sanitised before being used in SQL queries. This can be exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation may disclose the administrator username and password, but requires that the system is running MySQL 4.1 or later.

Vulnerabilities #1 and #2 are confirmed in version 2.7 MySQL edition but not in version 2.7 flat file edition. Vulnerability #3 is reported in version 2.7 MySQL edition.


Solution:
Edit the source code to ensure that input is properly sanitised and that authentication is done correctly.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1+2) undefined1_
2+3) rgod

Original Advisory:
1+2) http://www.milw0rm.com/exploits/3020
2+3) http://www.milw0rm.com/exploits/3017

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: PHP-Update Multiple Vulnerabilities

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