Detections
Analytics
Asterisk IAX2 FWDOWNL Request Spoofing Remote DoS
medium Nessus Plugin ID 33564
Language:
Synopsis
The remote VoIP service can be abused to conduct an amplification attack against third-party hosts.Description
The firmware download protocol implemented in the version of Asterisk running on the remote host does not initiate a handshake. By spoofing an IAX2 FWDOWNL request, an unauthenticated, remote attacker may be able to leverage this issue to flood a third-party host with unwanted firmware packets from the affected host.Solution
Upgrade to Asterisk Open Source 1.4.21.2 / 1.2.30, Asterisk Business Edition C.2.0.3 / C.1.10.3 / B.2.5.4, s800i (Asterisk Appliance) 1.2.0.1 or later.See Also
http://downloads.digium.com/pub/security/AST-2008-011.html
https://www.securityfocus.com/archive/1/494676/30/0/threaded
Plugin Details
Severity: Medium
ID: 33564
File Name: asterisk_iax2_spoofed_fwdownl.nasl
Version: 1.17
Type: remote
Family: Denial of Service
Published: 7/24/2008
Updated: 11/15/2018
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.6
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.7
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
Vulnerability Information
CPE: cpe:/a:asterisk:open_source
Required KB Items: Services/udp/iax2
Exploit Ease: No known exploits are available
Patch Publication Date: 7/22/2008
Reference Information
CVE: CVE-2008-3264
BID: 30350