Secunia Security Advisory - A vulnerability has been reported in FreeRADIUS, which can be exploited by malicious people to cause a DoS (Denial of Service).
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TITLE:
FreeRADIUS EAP-MSCHAPv2 Denial of Service Vulnerability
SECUNIA ADVISORY ID:
SA19300
VERIFY ADVISORY:
http://secunia.com/advisories/19300/
CRITICAL:
Less critical
IMPACT:
DoS
WHERE:
>From local network
SOFTWARE:
FreeRADIUS 1.x
http://secunia.com/product/3921/
DESCRIPTION:
A vulnerability has been reported in FreeRADIUS, which can be
exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an input validation error in the
EAP-MSCHAPv2 state machine. This can be exploited by manipulating the
EAP-MSCHAPv2 state machine on a radius client to bypass server
authentication checks and cause the server to crash.
The vulnerability has been reported in version 1.0.0 through 1.1.0.
SOLUTION:
Update to version 1.1.1.
http://www.freeradius.org/getting.html
PROVIDED AND/OR DISCOVERED BY:
The vendor credits Steffen Schuster.
ORIGINAL ADVISORY:
http://www.freeradius.org/security.html
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