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Kerio Products Password Brute Force and Denial of Service
Secunia Advisory: SA15179
Release Date: 2005-05-02
Popularity: 11,371 views

Critical:
Not critical
Impact: Brute force
DoS
Where: From local network
Solution Status: Vendor Patch

Software:Kerio MailServer 5.x
Kerio MailServer 6.x
Kerio Personal Firewall 2.x
Kerio Personal Firewall 3.x
Kerio Personal Firewall 4.x
Kerio WinRoute Firewall 5.x
Kerio WinRoute Firewall 6.x

Secunia CVSS-2 Score: Available in Secunia business solutions

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Advisory Content (Page 1 of 3)[ 1 ] [ 2 ] [ 3 ]

Description:
Javier Munoz has reported two weaknesses in Kerio WinRoute Firewall, Kerio MailServer and Kerio Personal Firewall, which can be exploited by malicious people to potentially cause a DoS (Denial of Service) and brute force passwords.

1) An error in the remote administration protocol, where multiple login attempts can be performed over a single connection, can be exploited to brute force passwords if the username is known.

2) An error in the remote administration protocol in the handling of certain repeated pre-authentication protocol messages, may be exploited to cause a vulnerable system to consume a large amount of CPU resources by continuously sending specially crafted messages.

The weaknesses affect the following versions:
* Kerio WinRoute Firewall version 6.0.10 and prior.
* Kerio MailServer version 6.0.8 and prior.
* Kerio Personal Firewall version 4.1.2 and prior.

Change Page:
[ 1 ] [ 2 ] [ 3 ]



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