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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
6.7	$0-$5k	0.00

A vulnerability was found in Digium Asterisk up to 1.4.10 (Communications System). It has been rated as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is availability. The summary by CVE is:

The IAX2 protocol implementation in Asterisk Open Source 1.2.x before 1.2.35, 1.4.x before 1.4.26.2, 1.6.0.x before 1.6.0.15, and 1.6.1.x before 1.6.1.6; Business Edition B.x.x before B.2.5.10, C.2.x before C.2.4.3, and C.3.x before C.3.1.1; and s800i 1.3.x before 1.3.0.3 allows remote attackers to cause a denial of service (call-number exhaustion) by initiating many IAX2 message exchanges, a related issue to CVE-2008-3263.

The weakness was released 09/08/2009 by Noam Rathaus (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2009-2346. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 40885 (Asterisk IAX2 Call Number Exhaustion DoS), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Denial of Service.

Upgrading to version 1.4.11 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (53038), Tenable (40885), SecurityFocus (BID 36275†), SecurityTracker (ID 1022819†) and Vulnerability Center (SBV-23498†).

Productinfo

Type

• Communications System

Vendor

• Digium

Name

• Asterisk

Version

• 1.4.0
• 1.4.1
• 1.4.2
• 1.4.3
• 1.4.4
• 1.4.5
• 1.4.6
• 1.4.7
• 1.4.8
• 1.4.9
• 1.4.10

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 40885
Nessus Name: Asterisk IAX2 Call Number Exhaustion DoS
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 64967
OpenVAS Name: Fedora Core 10 FEDORA-2009-9374 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.4.11
McAfee IPS: 🔍
McAfee IPS Version: 🔍

PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

07/07/2009 🔍
09/03/2009 +58 days 🔍
09/03/2009 +0 days 🔍
09/08/2009 +5 days 🔍
09/08/2009 +0 days 🔍
09/08/2009 +0 days 🔍
09/14/2009 +6 days 🔍
03/18/2015 +2011 days 🔍
12/29/2024 +3573 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: securityfocus.com⛔
Researcher: Noam Rathaus
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2346 (🔍)
X-Force: 53038
SecurityFocus: 36275 - Asterisk IAX2 Call Number Space Exhaustion Remote Denial of Service Vulnerability
SecurityTracker: 1022819
Vulnerability Center: 23498 - Digium Multiple Products IAX2 Message Exchanges Remote DoS Vulnerability, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 03/18/2015 03:15 PM
Updated: 12/29/2024 12:26 AM
Changes: 03/18/2015 03:15 PM (61), 12/24/2017 09:37 AM (12), 08/22/2021 06:59 AM (4), 08/22/2021 07:09 AM (1), 08/15/2024 04:37 PM (17), 12/29/2024 12:26 AM (8)
Complete: 🔍
Cache ID: 18:F09:40

Discussion

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