APP: Digium Asterisk IAX2 POKE Request Denial of Service
This signature detects attempts to exploit a known vulnerability against Digium Asterisk. A successful attack can result in a denial-of-service condition.
Extended Description
Asterisk is prone to a remote denial-of-service vulnerability because it fails to handle multiple 'POKE' requests in quick succession. Attackers can exploit this issue by sending a persistent stream of 'POKE' requests that will consume processor resources and deny service to legitimate users. NOTE: By default, 'POKE' requests are not logged by Asterisk.
Affected Products
Asterisk asterisk_business_edition,Asterisk asterisk,Asterisk asterisk
Short Name
APP:DIGIUM-IAX2-POKE-DOS
Severity
Minor
Recommended
False
Recommended Action
Drop
Category
APP
Keywords
Asterisk CVE-2008-3263 Denial Digium IAX2 POKE Request Service bid:30321 of
Release Date
07/25/2011
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3336
Port
UDP/4569
False Positive
Unknown
Vendors
Asterisk
Gentoo
CVSS Score
7.8