|Check Point Reference:||CPAI-2018-1304|
|Date Published:||8 Mar 2020|
|Last Updated:||8 Mar 2020|
|Protection Provided by:||
|Who is Vulnerable?|| Digium Asterisk Open Source prior to 13.23.1|
Digium Asterisk Open Source prior to 14.7.8
Digium Asterisk Open Source prior to 15.6.1
Digium Certified Asterisk prior to 13.21-cert3
|Vulnerability Description||A denial of service vulnerability exists in Digium Asterisk res_http_websocket. The vulnerability may occur when sending an HTTP Upgrade Request. Successful exploitation of this vulnerability could allow a remote attacker to cause denial of service conditions on the target system.|
This protection detects attempts to exploit this vulnerability.
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: Web Server Enforcement Violation.
Attack Information: Digium Asterisk res_http_websocket Denial of Service (CVE-2018-17281)