CVE-2018-12227

Severity Score

5.3

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An issue was discovered in Asterisk Open Source 13.x before 13.21.1, 14.x before 14.7.7, and 15.x before 15.4.1 and Certified Asterisk 13.18-cert before 13.18-cert4 and 13.21-cert before 13.21-cert2. When endpoint specific ACL rules block a SIP request, they respond with a 403 forbidden. However, if an endpoint is not identified, then a 401 unauthorized response is sent. This vulnerability just discloses which requests hit a defined endpoint. The ACL rules cannot be bypassed to gain access to the disclosed endpoints.

Se ha descubierto un problema en Asterisk Open Source en versiones 13.x anteriores a la 13.21.1; versiones 14.x anteriores a la 14.7.7 y las versiones 15.x anteriores a la 15.4.1, así como Certified Asterisk en versiones 13.18-cert anteriores a la 13.18-cert4 y 13.21-cert anteriores a la 13.21-cert2. Cuando las reglas de lista de control de acceso (ACL) específicas del endpoint bloquean una petición SIP, responden con un mensaje de error 403 prohibido. Sin embargo, si no se identifica un endpoint, se envía una respuesta 401 no autorizada. Esta vulnerabilidad sólo revela qué peticiones llegan a un endpoint definido. Las reglas de lista de control de acceso (ACL) no pueden omitirse para obtener acceso a los endpoints revelados.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-06-11 CVE Reserved
2018-06-12 CVE Published
2024-08-05 CVE Updated
2024-09-15 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/104455	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://issues.asterisk.org/jira/browse/ASTERISK-27818	2019-03-29

URL	Date	SRC
http://downloads.asterisk.org/pub/security/AST-2018-008.html	2019-03-29
https://security.gentoo.org/glsa/201811-11	2019-03-29
https://www.debian.org/security/2018/dsa-4320	2019-03-29

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"				>= 13.0.0 < 13.21.1 Search vendor "Digium" for product "Asterisk" and version " >= 13.0.0 < 13.21.1"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				> 14.0.0 < 14.7.7 Search vendor "Digium" for product "Asterisk" and version " > 14.0.0 < 14.7.7"		-		Affected
Digium Search vendor "Digium"		Asterisk Search vendor "Digium" for product "Asterisk"				>= 15.0.0 < 15.4.1 Search vendor "Digium" for product "Asterisk" and version " >= 15.0.0 < 15.4.1"		-		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				13.18 Search vendor "Digium" for product "Certified Asterisk" and version "13.18"		cert1		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				13.18 Search vendor "Digium" for product "Certified Asterisk" and version "13.18"		cert2		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				13.18 Search vendor "Digium" for product "Certified Asterisk" and version "13.18"		cert3		Affected
Digium Search vendor "Digium"		Certified Asterisk Search vendor "Digium" for product "Certified Asterisk"				13.21 Search vendor "Digium" for product "Certified Asterisk" and version "13.21"		cert1		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0"		-		Affected