Digium Asterisk up to Beta 6 IAX2 Channel Driver stack-based overflow

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.
9.0	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Digium Asterisk. Affected by this vulnerability is an unknown functionality of the component IAX2 Channel Driver. The manipulation results in stack-based overflow. This vulnerability is cataloged as CVE-2007-3762. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as very critical, was found in Digium Asterisk (Communications System). Affected is an unknown function of the component IAX2 Channel Driver. The manipulation with an unknown input leads to a stack-based overflow vulnerability. CWE is classifying the issue as CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Stack-based buffer overflow in the IAX2 channel driver (chan_iax2) in Asterisk before 1.2.22 and 1.4.x before 1.4.8, Business Edition before B.2.2.1, AsteriskNOW before beta7, Appliance Developer Kit before 0.5.0, and s800i before 1.0.2 allows remote attackers to execute arbitrary code by sending a long (1) voice or (2) video RTP frame.

The weakness was shared 07/18/2007 by Russell Bryant with Digium (Website). The advisory is shared for download at ftp.digium.com. This vulnerability is traded as CVE-2007-3762 since 07/13/2007. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 12/24/2017).

It is declared as proof-of-concept. The vulnerability scanner Nessus provides a plugin with the ID 31294 (GLSA-200802-11 : Asterisk: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks.

Upgrading to version 1.4_beta eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (35466), Tenable (31294), SecurityFocus (BID 24949†), Secunia (SA26099†) and SecurityTracker (ID 1018407†). The entries VDB-38109, VDB-37887, VDB-37886 and VDB-37885 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Communications System

Vendor

Digium

Name

Asterisk

Version

License

open-source

Website

Vendor: https://www.digium.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
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: Stack-based overflow
CWE: CWE-121 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 31294
Nessus Name: GLSA-200802-11 : Asterisk: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 58577
OpenVAS Name: Debian Security Advisory DSA 1358-1 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.4_beta

Timelineinfo

07/13/2007 🔍
07/18/2007 +5 days 🔍
07/18/2007 +0 days 🔍
07/18/2007 +0 days 🔍
07/18/2007 +0 days 🔍
07/18/2007 +0 days 🔍
07/18/2007 +0 days 🔍
07/26/2007 +8 days 🔍
02/27/2008 +216 days 🔍
03/15/2015 +2573 days 🔍
12/24/2017 +1015 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: ftp.digium.com
Researcher: Russell Bryant
Organization: Digium
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-3762 (🔍)
GCVE (CVE): GCVE-0-2007-3762
GCVE (VulDB): GCVE-100-37884

OVAL: 🔍

X-Force: 35466
SecurityFocus: 24949 - Asterisk IAX2 Channel Driver IAX2_Write Function Remote Stack Buffer Overflow Vulnerability
Secunia: 26099 - Asterisk Multiple Vulnerabilities, Highly Critical
SecurityTracker: 1018407 - Asterisk STUN, Skinny Channel Driver, and IAX2 Channel Driver Bugs Let Remote Users Deny Service or Execute Arbitrary Code
Vulnerability Center: 15694 - Digium Asterisk, AsteriskNOW and Appliance Developer Kit IAX2 Channel Driver Allows Code Execution, High
Vupen: ADV-2007-2563

See also: 🔍

Entryinfo

Created: 03/15/2015 15:58
Updated: 12/24/2017 09:43
Changes: 03/15/2015 15:58 (67), 12/24/2017 09:43 (19)
Complete: 🔍
Cache ID: 216:149:103