Detections
Analytics
Asterisk 13.x < 13.19.2 / 14.x < 14.7.6 / 13.13 < 13.18-cert3 Multiple DoS Vulnerabilities (AST-2018-002, AST-2018-003, AST-2018-004, & AST-2018-005)
high Nessus Plugin ID 107101
Language:
Synopsis
A telephony application running on the remote host is affected by a Subscribe request crash vulnerability.Description
According to its SIP banner, the version of Asterisk running on the remote host is 13.x prior to 13.19.2, 14.x prior to 14.7.6, or 13.18 prior to 13.18-cert3. It is therefore, affected by a Multiple Denial of Service Vulnerabilities as described in AST-2018-002, AST-2018-003, AST-2018-004, & AST-2018-005 advisories.Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.
Solution
Upgrade to Asterisk version 13.19.2 / 14.7.6 / 13.18-cert3 or later.See Also
http://downloads.asterisk.org/pub/security/AST-2018-002.html
http://downloads.asterisk.org/pub/security/AST-2018-003.html
http://downloads.asterisk.org/pub/security/AST-2018-004.html
http://downloads.asterisk.org/pub/security/AST-2018-005.html
Plugin Details
Severity: High
ID: 107101
File Name: asterisk_ast_2018_002-005.nasl
Version: 1.7
Type: remote
Family: Misc.
Published: 3/2/2018
Updated: 4/11/2022
Configuration: Enable paranoid mode, Enable thorough checks
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 4.4
CVSS v2
Risk Factor: Medium
Base Score: 5
Temporal Score: 3.9
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P
CVSS Score Source: CVE-2018-7284
CVSS v3
Risk Factor: High
Base Score: 7.5
Temporal Score: 6.7
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C
Vulnerability Information
CPE: cpe:/a:digium:asterisk
Required KB Items: asterisk/sip_detected, Settings/ParanoidReport
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 2/21/2018
Vulnerability Publication Date: 2/21/2018
Reference Information
CVE: CVE-2018-7284, CVE-2018-7286