6295 : Kerio MailServer SYN Packet DoS
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Info

Last Modified

5 months ago

Percent Complete

95%

Disclosure

Aug 19, 2002

Discovery

Aug 01, 2002

Dates

Exploit

Unknown

Solution

Unknown

Description

Kerio MailServer contains a flaw that may allow a remote denial of service attack. The issue is triggered when SYN packets are sent to one of the following services: POP3, SMTP, IMAP, Secure IMAP, POP3S, WebMail, or Secure WebMail. The result is loss of availability for the service. The service resumes functionality after a short period of time.

Classification

Location: Remote/Network Access Required
Attack Type: Denial of Service
Impact: Loss of Availability
Exploit: Exploit Unknown

Solution

Upgrade to version 5.1.7 or higher, as it has been reported to fix this vulnerability. It is also possible to minimize your risk of attack by implementing the following workaround(s):
Filter all mail services to restrict access to only trusted sources from within the network.

Products

Kerio Technologies, Inc.
Watch-list
Mail Server
Watch-list
5.0

References

Credit

  • Abraham Lincoln Hao / SunNinja - SunNinjaBrand New Doo Doonssolution.com - NSSI-Research Labs

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