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TITLE:
Metasploit Framework "defanged" Mode Bypass Vulnerability

SECUNIA ADVISORY ID:
SA16318

VERIFY ADVISORY:
http://secunia.com/advisories/16318/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass

WHERE:
>From remote

SOFTWARE:
Metasploit Framework 2.x
http://secunia.com/product/5471/

DESCRIPTION:
Dino Dai Zovi has reported a vulnerability in Metasploit Framework,
which can be exploited by malicious people to bypass certain security
restrictions.

The vulnerability is caused due to an error in the "StateToOptions()"
function in msfweb that allows the "_Defanged" environment variable to
be overwritten with user-supplied  values. This can be exploited to
bypass the "defanged" mode restrictions to run vulnerability checks
and exploits from the system.

SOLUTION:
The vulnerability has been fixed in version 2.4 snapshot and is
available via msfupdate.

PROVIDED AND/OR DISCOVERED BY:
Dino Dai Zovi

ORIGINAL ADVISORY:
http://metasploit.com/archive/framework/msg00469.html

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About:
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