CVE-2020-3537

Cisco Jabber for Windows Universal Naming Convention Link Handling Vulnerability

Severity Score

5.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Track

*SSVC

Descriptions

A vulnerability in Cisco Jabber for Windows software could allow an authenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper validation of message contents. An attacker could exploit this vulnerability by sending specially crafted messages that contain Universal Naming Convention (UNC) links to a targeted user and convincing the user to follow the provided link. A successful exploit could allow the attacker to cause the application to access a remote system, possibly allowing the attacker to gain access to sensitive information that the attacker could use in additional attacks.

Una vulnerabilidad en el software Cisco Jabber para Windows podría permitir a un atacante remoto autenticado conseguir acceso a información confidencial. La vulnerabilidad es debido a una comprobación inapropiada de los contenidos de mensaje. Un atacante podría explotar esta vulnerabilidad mediante el envío de mensajes especialmente diseñados que contengan enlaces Universal Naming Convention (UNC) hacia un usuario apuntado y convenciendo al usuario de seguir el vínculo proporcionado. Una explotación con éxito podría permitir al atacante causar que la aplicación acceda a un sistema remoto, permitiendo posiblemente al atacante conseguir acceso a información confidencial que el atacante podría usar en ataques adicionales

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2019-12-12 CVE Reserved
2020-09-04 CVE Published
2024-10-14 EPSS Updated
2024-11-13 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

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-jabber-G3NSjPn7	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"		Jabber Search vendor "Cisco" for product "Jabber"				>= 12.1 < 12.1.3 Search vendor "Cisco" for product "Jabber" and version " >= 12.1 < 12.1.3"		windows		Affected
Cisco Search vendor "Cisco"		Jabber Search vendor "Cisco" for product "Jabber"				>= 12.5 < 12.5.2 Search vendor "Cisco" for product "Jabber" and version " >= 12.5 < 12.5.2"		windows		Affected
Cisco Search vendor "Cisco"		Jabber Search vendor "Cisco" for product "Jabber"				>= 12.6 < 12.6.3 Search vendor "Cisco" for product "Jabber" and version " >= 12.6 < 12.6.3"		windows		Affected
Cisco Search vendor "Cisco"		Jabber Search vendor "Cisco" for product "Jabber"				>= 12.7 < 12.7.2 Search vendor "Cisco" for product "Jabber" and version " >= 12.7 < 12.7.2"		windows		Affected
Cisco Search vendor "Cisco"		Jabber Search vendor "Cisco" for product "Jabber"				>= 12.8 < 12.8.3 Search vendor "Cisco" for product "Jabber" and version " >= 12.8 < 12.8.3"		windows		Affected
Cisco Search vendor "Cisco"		Jabber Search vendor "Cisco" for product "Jabber"				>= 12.9 < 12.9.1 Search vendor "Cisco" for product "Jabber" and version " >= 12.9 < 12.9.1"		windows		Affected