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Insecure Library Loading
Highly critical

DB Top Sites Multiple Vulnerabilities

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Release Date:  2009-06-16    Last Update:  2009-07-09    Views:  2,914

Secunia Advisory SA35419

Where:

From remote

Impact:

Cross Site Scripting, Exposure of system information, Exposure of sensitive information, System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Some vulnerabilities have been reported in DB Top Sites, which can be exploited by malicious people to disclose sensitive information, conduct cross-site scripting attacks, or compromise a vulnerable system.

1) Input passed to the "u" parameter in full.php, index.php, and contact.php is not properly verified before being used to include files. This can be exploited to include arbitrary files from local resources via directory traversal attacks and URL-encoded NULL bytes.

NOTE: Other scripts may also be affected.

Successful exploitation requires that "magic_quotes_gpc" is disabled.

2) The add_reg.php script creates arbitrary PHP files containing the values of received parameters. This can be exploited to inject and execute arbitrary PHP code via e.g. a specially crafted "location" parameter.

3) Input passed to the "u" parameter in vote.php is not properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in a context of affected site.

The vulnerabilities are reported in version 1.0. Other versions may also be affected.


Solution:
Edit the source code to ensure that input is properly sanitised and verified.

Further details available to Secunia VIM customers

Provided and/or discovered by:
1, 2) SirGod
3) Moudi

Original Advisory:
1) http://milw0rm.com/exploits/8951
2) http://milw0rm.com/exploits/8952
3) http://www.packetstormsecurity.com/0907-exploits/dbtopsites-xss.txt

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: DB Top Sites Multiple Vulnerabilities

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