Asterisk 13.x < 13.18.3 / 14.x < 14.7.3 / 15.x < 15.1.3 / 13.13 < 13.13-cert8 Memory Exhaustion Remote DoS (AST-2017-013)

high Nessus Plugin ID 105041

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Synopsis

A telephony application running on the remote host is affected by a memory exhaustion remote denial-of-service vulnerability.

Description

According to its SIP banner, the version of Asterisk running on the remote host is 13.x prior to 13.18.3, 14.x prior to 14.7.3, 15.x prior to 15.1.3, or 13.13 prior to 13.13-cert8. It is therefore, affected by a memory exhaustion remote denial-of-service attack as described in AST-2017-013.

Also 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 13.18.3 / 14.7.3 / 15.1.3 / 13.13-cert8 or later.

Plugin Details

Severity: High

ID: 105041

File Name: asterisk_ast_2017_013.nasl

Version: 1.8

Type: remote

Family: Misc.

Published: 12/6/2017

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-2017-17090

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: Settings/ParanoidReport, asterisk/sip_detected

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/1/2017

Vulnerability Publication Date: 11/29/2017

Reference Information

CVE: CVE-2017-17090

BID: 102023

Detections

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