Detections
Analytics
Asterisk Multiple Vulnerabilities (AST-2012-014 / AST-2012-015)
medium Nessus Plugin ID 64717
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Synopsis
A telephony application running on the remote host is affected by multiple vulnerabilities.Description
According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by the following vulnerabilities :- A stack-based buffer overflow error exists related to SIP, HTTP and XMPP handling over TCP. Note that in the case of 'Certified Asterisk', SIP is not affected.
Further note that in the case of XMPP, an attacker must establish an authenticated session first. (CVE-2012-5976)
- An error exists related to device state cache and anonymous calls that could allow system resources to be exhausted. Note this vulnerability only affects systems configured to allow anonymous calls. (CVE-2012-5977)
Solution
Upgrade to Asterisk 1.8.19.1 / 10.11.1 / 11.1.2, Certified Asterisk 1.8.11-cert10 or apply the patches listed in the Asterisk advisory.See Also
http://downloads.asterisk.org/pub/security/AST-2012-014.html
http://downloads.asterisk.org/pub/security/AST-2012-015.html
Plugin Details
Severity: Medium
ID: 64717
File Name: asterisk_ast_2012_015.nasl
Version: 1.12
Type: remote
Family: Misc.
Published: 2/20/2013
Updated: 4/11/2022
Configuration: Enable paranoid mode, Enable thorough checks
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: Low
Score: 3.7
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
CVSS Score Source: CVE-2012-5976
Vulnerability Information
CPE: cpe:/a:digium:asterisk
Required KB Items: asterisk/sip_detected, Settings/ParanoidReport
Exploit Ease: No known exploits are available
Patch Publication Date: 1/2/2013
Vulnerability Publication Date: 1/2/2013
Reference Information
CVE: CVE-2012-5976, CVE-2012-5977