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Site@School Multiple Vulnerabilities
Secunia Advisory: SA21975
Release Date: 2006-09-18
Last Update: 2006-09-21
Popularity: 5,732 views

Critical:
Highly critical
Impact: Exposure of sensitive information
System access
Where: From remote
Solution Status: Unpatched

Software:Site@School 2.x

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CVE reference:CVE-2006-4919
CVE-2006-4920
CVE-2006-4921
CVE-2006-4922


Description:
Simo64 has discovered some vulnerabilities in Site@School, which can be exploited by malicious users to disclose certain sensitive information and by malicious people to compromise a vulnerable system.

1) Input passed to the "dir" parameter in starnet/editors/htmlarea/popups/images.php is not properly verified before being used. This can be exploited to list certain contents of arbitrary directories via directory traversal attacks.

2) Input passed to the "cmsdir" parameter in multiple files is not properly verified before being used to include files. This can be exploited to execute arbitrary PHP code by including files from local or external resources.

Example (confirmed in versions 2.4.03 and 2.4.02):
http://[host]/starnet/modules/include/include.php?cmsdir=[file]

Examples (confirmed in version 2.4.02):
http://[host]/starnet/modules/sn_allbum/slideshow.php?cmsdir=[file]
http://[host]/starnet/themes/editable/main.inc.php?cmsdir=[file]

NOTE: Reportedly, other files are also affected.

Successful exploitation requires that "register_globals" is enabled.

The vulnerabilities have been confirmed in versions 2.4.02 and 2.4.03. Other versions may also be affected.

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

Provided and/or discovered by:
Simo64

Changelog:
2006-09-21: Added CVE references.
2006-09-21: Added CVE reference.

Original Advisory:
http://milw0rm.com/exploits/2374


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