Digium Asterisk up to 1.8.4.2 information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

A vulnerability was found in Digium Asterisk up to 1.8.4.2 (Communications System). It has been declared as problematic. This vulnerability affects an unknown code. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. CVE summarizes:

The SIP over UDP implementation in Asterisk Open Source 1.4.x before 1.4.43, 1.6.x before 1.6.2.21, and 1.8.x before 1.8.7.2 uses different port numbers for responses to invalid requests depending on whether a SIP username exists, which allows remote attackers to enumerate usernames via a series of requests.

The weakness was released 12/14/2011 (Website). The advisory is available at debian.org. This vulnerability was named CVE-2011-4597 since 11/29/2011. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 57289 (Asterisk Multiple Vulnerabilities (AST-2011-013 / AST-2011-014)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 1.8.4.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (71703) and Tenable (57289). Entry connected to this vulnerability is available at 59687.

Productinfo

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Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 57289
Nessus Name: Asterisk Multiple Vulnerabilities (AST-2011-013 / AST-2011-014)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 70579
OpenVAS Name: Debian Security Advisory DSA 2367-1 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.8.4.3

Timelineinfo

11/29/2011 🔍
12/08/2011 +9 days 🔍
12/14/2011 +6 days 🔍
12/14/2011 +0 days 🔍
12/14/2011 +0 days 🔍
12/14/2011 +0 days 🔍
12/19/2011 +5 days 🔍
12/20/2011 +1 days 🔍
03/23/2015 +1189 days 🔍
11/28/2021 +2442 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: dsa-2367
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4597 (🔍)
OVAL: 🔍

X-Force: 71703
Vulnerability Center: 34074 - Asterisk Open Source 1.4.x, 1.6.x and 1.8.x SIP Over UDP Allows Username Enumeration, Medium
SecurityFocus: 50989 - Asterisk SIP 'automon' NULL Pointer Dereference Denial Of Service Vulnerability
Secunia: 47273 - Debian update for asterisk, Moderately Critical
OSVDB: 77597

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/28/2021 10:07
Changes: 03/23/2015 16:50 (63), 04/08/2017 19:50 (13), 11/28/2021 10:00 (3), 11/28/2021 10:04 (1), 11/28/2021 10:07 (1)
Complete: 🔍

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