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TITLE:
Site@School Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA21975

VERIFY ADVISORY:
http://secunia.com/advisories/21975/

CRITICAL:
Highly critical

IMPACT:
Exposure of sensitive information, System access

WHERE:
>From remote

SOFTWARE:
Site@School 2.x
http://secunia.com/product/11979/

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

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/2374

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About:
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