Asterisk Information Disclosure (AST-2014-011) (POODLE)

low Nessus Plugin ID 78623

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Synopsis

A telephony application running on the remote host is affected by an information disclosure vulnerability.

Description

According to the version in its SIP banner, the version of Asterisk running on the remote host is potentially affected by an error related to the way SSL 3.0 handles padding bytes when decrypting messages encrypted using block ciphers in cipher block chaining (CBC) mode. A man-in-the-middle attacker can decrypt a selected byte of a cipher text in as few as 256 tries if they are able to force a victim application to repeatedly send the same data over newly created SSL 3.0 connections. This is also known as the 'POODLE' issue.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Asterisk 1.8.31.1 / 11.13.1 / 12.6.1 / 1.8.28-cert2 / 11.6-cert7 or apply the appropriate patch listed in the Asterisk advisory.

Plugin Details

Severity: Low

ID: 78623

File Name: asterisk_ast_2014_011.nasl

Version: 1.18

Type: remote

Family: Misc.

Published: 10/22/2014

Updated: 6/23/2023

Configuration: Enable paranoid mode, Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.1

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.4

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2014-3566

CVSS v3

Risk Factor: Low

Base Score: 3.4

Temporal Score: 3.1

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

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: 10/20/2014

Vulnerability Publication Date: 10/14/2014

Reference Information

CVE: CVE-2014-3566

BID: 70574

CERT: 577193

Detections

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