|Check Point Reference:||CPAI-2012-103|
|Date Published:||19 Mar 2012|
|Last Updated:||2 Mar 2016|
|Protection Provided by:||
|Who is Vulnerable?|
|Vulnerability Description||A denial of service vulnerability has been reported in all web servers. The vulnerability is due to the server's inability to handle multiple incoming IMAP requests within a short period of time. Remote attackers may exploit this issue by rapidly sending a large number of IMAP requests to the server.There are cases in which certain traffic, although not intended for malicious use, is very unsafe, since it may transfer shellcode which is undetectable by IPS.|
IPS will detect and block IMAP requests sent to the server over a short period of time.
In order for the protection to be activated, update your Security Gateway product to the latest IPS update.For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.
This protection's log will contain the following information:
Attack Name: IMAP Protocol Violation.
Attack Information: Web servers multiple IMAP initial connection requests denial of service