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TITLE:
WebSVN File Overwrite and Cross-Site Scripting

SECUNIA ADVISORY ID:
SA32338

VERIFY ADVISORY:
http://secunia.com/advisories/32338/

CRITICAL:
Moderately critical

IMPACT:
Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
WebSVN 2.x
http://secunia.com/advisories/product/14418/

DESCRIPTION:
James Bercegay has reported two vulnerabilities in WebSVN, which can
be exploited by malicious people to conduct cross-site scripting
attacks and manipulate data.

1) Input passed in the URL to index.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 context
of an affected site.

2) Input passed to the "rev" parameter in rss.php is not properly
sanitised before being used. This can be exploited to overwrite
arbitrary files via directory traversal attacks.

Successful exploitation of this vulnerability requires that
"magic_quotes_gpc" is disabled.

The vulnerabilities are reported in version 2.0. Other versions may
also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
James Bercegay, GulfTech Security Research Team

ORIGINAL ADVISORY:
GulfTech Security Research Team:
http://www.gulftech.org/?node=research&article_id=00132-10202008

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