Threat Encyclopedia

Digium.Asterisk.res_http_websocket.HTTP.Upgrade.Request.DoS

description-logoDescription

This indicates an attack attempt to exploit a Denial of Service Vulnerability in Digium Certified Asterisk.
The vulnerability is due to an error in the vulnerable application when handling a maliciously crafted request. A remote attacker may be able to exploit this to cause a denial of service condition on the affected system.

affected-products-logoAffected Products

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

Impact

Denial of Service: Remote attackers can crash vulnerable systems.

recomended-action-logoRecommended Actions

Apply the most recent upgrade or patch from the vendor:
http://downloads.asterisk.org/pub/security/AST-2018-009.html

CVE References

CVE-2018-17281