Digium Asterisk 11.6.0/11.14.0/12.7.0/13.0.0 CONFBRIDGE Dialplan Function access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

A vulnerability was found in Digium Asterisk 11.6.0/11.14.0/12.7.0/13.0.0 (Communications System). It has been classified as critical. Affected is an unknown code block of the component CONFBRIDGE Dialplan Function. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 11/20/2014 by Gareth Palmer as AST-2014-017 as confirmed advisory (Website). The advisory is available at downloads.asterisk.org. This vulnerability is traded as CVE-2014-8417 since 10/22/2014. The exploitability is told to be easy. It is possible to launch the attack remotely. The requirement for exploitation is a authentication. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 16 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 79441 (Asterisk ConfBridge 'dialplan' Privilege Escalation (AST-2014-017)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 11.14.1, 12.7.1, 13.0.1 or 11.6-cert8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (98868) and Tenable (79441). The entries 68263, 68261, 68260 and 68259 are pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 5.5

VulDB Base Score: 6.3
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

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Current Price Estimation: 🔍

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Nessus ID: 79441
Nessus Name: Asterisk ConfBridge 'dialplan' Privilege Escalation (AST-2014-017)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 18627
OpenVAS Name: Gentoo Linux Local Check: https://security.gentoo.org/glsa/201412-51
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Asterisk 11.14.1/12.7.1/13.0.1/11.6-cert8

Timelineinfo

10/22/2014 🔍
11/04/2014 +13 days 🔍
11/20/2014 +16 days 🔍
11/20/2014 +0 days 🔍
11/20/2014 +0 days 🔍
11/21/2014 +1 days 🔍
11/21/2014 +0 days 🔍
11/24/2014 +3 days 🔍
11/24/2014 +0 days 🔍
11/25/2014 +1 days 🔍
12/01/2014 +6 days 🔍
02/27/2022 +2645 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: AST-2014-017
Researcher: Gareth Palmer
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-8417 (🔍)
X-Force: 98868 - Asterisk CONFBRIDGE dialplan function privilege escalation, Medium Risk
SecurityTracker: 1031250 - Asterisk CONFBRIDGE Lets Remote Authenticated Users Execute Arbitrary System Commands
Vulnerability Center: 47345 - Asterisk and Certified Asterisk Remote Host Privilege via a Crafted ConfbridgeStartRecord AMI Action, Medium
SecurityFocus: 71228 - Multiple Asterisk Products ConfBridge Dialplan Functions Remote Privilege Escalation Vulnerability

See also: 🔍

Entryinfo

Created: 11/24/2014 09:36
Updated: 02/27/2022 08:08
Changes: 11/24/2014 09:36 (80), 12/24/2017 09:37 (5), 02/27/2022 08:07 (2), 02/27/2022 08:08 (1)
Complete: 🔍

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