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If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> Denial of Service >> Kerio MailServer Webmail Resource Exhaustion Vulnerability

Vulnerability Assessment Details

Kerio MailServer Webmail Resource Exhaustion Vulnerability

Vulnerability Assessment Summary
Checks for Kerio MailServer < 6.0.9

Detailed Explanation for this Vulnerability Assessment

Summary :

The remote mail server is prone to a denial of service attack.

Description :

According to its banner, the remote host is running a version of Kerio
MailServer prior to 6.0.9. Such versions may be subject to hangs or
high CPU usage when malformed email messages are viewed through its
WebMail component. A possible hacker may be able leverage this issue to deny
service to legitimate users simply by sending a specially-crafted
message and having that message viewed by someone using Kerio WebMail.

See also :

http://www.kerio.com/kms_history.html

Solution :

Upgrade to Kerio MailServer 6.0.9 or newer.

Network Security Threat Level:

Low / CVSS Base Score : 2
(AV:R/AC:H/Au:NR/C:N/A:P/I:N/B:N)

Networks Security ID: 13180

Vulnerability Assessment Copyright: This script is Copyright (C) 2005-2006 Tenable Network Security

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