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TITLE:
1Two News Script Insertion and Authentication Bypass

SECUNIA ADVISORY ID:
SA15344

VERIFY ADVISORY:
http://secunia.com/advisories/15344/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Cross Site Scripting

WHERE:
>From remote

SOFTWARE:
1Two News 1.x
http://secunia.com/product/5095/

DESCRIPTION:
Sylvain Thual has reported two vulnerabilities in 1Two News, which
can be exploited by malicious people to conduct script insertion
attacks and bypass certain security restrictions.

1) Input passed to various fields when posting a comment is not
properly sanitised before being used. This can be exploited to inject
arbitrary HTML and script code, which will be executed in a user's
browser session in context of an affected site when the malicious
posting is viewed.

2) The problem is that the scripts "admin/upload.php" and
"admin/delete.php" can be accessed without being authenticated. This
can be exploited to delete or upload arbitrary images.

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

SOLUTION:
1) The vulnerability has been fixed in an updated 1.0 version.

2) Edit the source code to ensure that authentication is properly
performed.

PROVIDED AND/OR DISCOVERED BY:
Sylvain Thual

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