CVE-2007-4103

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The IAX2 channel driver (chan_iax2) in Asterisk Open 1.2.x before 1.2.23, 1.4.x before 1.4.9, and Asterisk Appliance Developer Kit before 0.6.0, when configured to allow unauthenticated calls, allows remote attackers to cause a denial of service (resource exhaustion) via a flood of calls that do not complete a 3-way handshake, which causes an ast_channel to be allocated but not released.

El controlador de canal IAX2 (chan_iax2) de Asterisk Open 1.2.x anterior a 1.2.23, 1.4.x anterior a 1.4.9, y Asterisk Appliance Developer Kit anterior a 0.6.0, cuando está configurado para permitir llamadas no autenticadas, permite a atacantes remotos provocar una denegación de servicio (agotamiento de recursos) mediante una inundación de llamadas que no completan la negociación de 3 pasos, lo cual provoca que se reserve un canal ast_channel pero no se libere.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2007-07-30 CVE Reserved
2007-07-31 CVE Published
2024-08-07 CVE Updated
2024-09-25 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-772: Missing Release of Resource after Effective Lifetime

CAPEC

References (11)

URL	Tag	Source
http://osvdb.org/38197	Broken Link
http://secunia.com/advisories/29051	Broken Link
http://securityreason.com/securityalert/2960	Broken Link
http://www.securityfocus.com/archive/1/475069/100/0/threaded	Broken Link
http://www.securityfocus.com/bid/24950	Broken Link
http://www.securitytracker.com/id?1018472	Broken Link
http://www.vupen.com/english/advisories/2007/2701	Broken Link

URL	Date	SRC

URL	Date	SRC
http://bugs.gentoo.org/show_bug.cgi?id=185713	2024-02-08
http://ftp.digium.com/pub/asa/ASA-2007-018.pdf	2024-02-08
http://secunia.com/advisories/26274	2024-02-08

URL	Date	SRC
http://security.gentoo.org/glsa/glsa-200802-11.xml	2024-02-08

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 1.2.20 < 1.2.23 Search vendor "Digium" for product "Asterisk" and version " >= 1.2.20 < 1.2.23"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 1.4.0 < 1.4.9 Search vendor "Digium" for product "Asterisk" and version " >= 1.4.0 < 1.4.9"		-		Affected
Digium Search vendor "Digium"		Asterisk Appliance Developer Kit Search vendor "Digium" for product "Asterisk Appliance Developer Kit"				< 0.6.0 Search vendor "Digium" for product "Asterisk Appliance Developer Kit" and version " < 0.6.0"		-		Affected