CVE-2021-34773

Cisco Unified Communications Products Cross-Site Request Forgery Vulnerability

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in the web-based management interface of Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack on an affected device. This vulnerability is due to insufficient CSRF protections for the web-based management interface on an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a malicious link. A successful exploit could allow the attacker to perform arbitrary actions with the privilege level of the targeted user. These actions could include modifying the device configuration and deleting (but not creating) user accounts.

Una vulnerabilidad en la interfaz de administración basada en la web de Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME) y Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) podría permitir a un atacante remoto no autenticado llevar a cabo un ataque de tipo cross-site request forgery (CSRF) en un dispositivo afectado. Esta vulnerabilidad es debido a una insuficiencia de las protecciones CSRF para la interfaz de administración basada en la web en un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad al convencer a un usuario de la interfaz para que haga clic en un enlace malicioso. Una explotación con éxito podría permitir al atacante llevar a cabo acciones arbitrarias con el nivel de privilegio del usuario objetivo. Estas acciones podrían incluir la modificación de la configuración del dispositivo y la eliminación (pero no la creación) de cuentas de usuario

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-06-15 CVE Reserved
2021-11-04 CVE Published
2023-05-28 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-352: Cross-Site Request Forgery (CSRF)

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucm-csrf-xrTkDu3H	2023-11-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Unified Communications Manager Search vendor "Cisco" for product "Unified Communications Manager"				-		session_management		Affected
Cisco Search vendor "Cisco"		Unified Communications Manager Search vendor "Cisco" for product "Unified Communications Manager"				14.0\(1.10000.20\) Search vendor "Cisco" for product "Unified Communications Manager" and version "14.0\(1.10000.20\)"		-		Affected
Cisco Search vendor "Cisco"		Unified Communications Manager Im And Presence Service Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service"				10.5\(2\) Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service" and version "10.5\(2\)"		-		Affected
Cisco Search vendor "Cisco"		Unified Communications Manager Im And Presence Service Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service"				11.5\(1\) Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service" and version "11.5\(1\)"		-		Affected
Cisco Search vendor "Cisco"		Unified Communications Manager Im And Presence Service Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service"				12.5 Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service" and version "12.5"		-		Affected
Cisco Search vendor "Cisco"		Unified Communications Manager Im And Presence Service Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service"				14.0 Search vendor "Cisco" for product "Unified Communications Manager Im And Presence Service" and version "14.0"		-		Affected