CVE-2021-1525

Cisco Webex Meetings and Webex Meetings Server File Redirect Vulnerability

Severity Score

6.1

*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 Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to redirect users to a malicious file. This vulnerability is due to improper validation of URL paths in the application interface. An attacker could exploit this vulnerability by persuading a user to follow a specially crafted URL that is designed to cause Cisco Webex Meetings to include a remote file in the web UI. A successful exploit could allow the attacker to cause the application to offer a remote file to a user, which could allow the attacker to conduct further phishing or spoofing attacks.

Una vulnerabilidad en Cisco Webex Meetings y Cisco Webex Meetings Server, podría permitir a un atacante remoto no autenticado redireccionar a usuarios a un archivo malicioso. Esta vulnerabilidad es debido a una comprobación inapropiada de las rutas de URL en la interfaz de la aplicación. Un atacante podría explotar esta vulnerabilidad al persuadir a un usuario de que siga una URL especialmente diseñada para causar que Cisco Webex Meetings incluya un archivo remoto en la interfaz web. Una explotación con éxito podría permitir al atacante causar que la aplicación ofrezca un archivo remoto a un usuario, lo que podría permitir al atacante conducir nuevos ataques de phishing o spoofing

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:Track

Exploitation

None

Automatable

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2020-11-13 CVE Reserved
2021-06-04 CVE Published
2024-06-05 EPSS Updated
2024-11-07 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

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-webex-redirect-XuZFU3PH	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"		Webex Meetings Online Search vendor "Cisco" for product "Webex Meetings Online"				41.3.5 Search vendor "Cisco" for product "Webex Meetings Online" and version "41.3.5"		-		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				< 3.0 Search vendor "Cisco" for product "Webex Meetings Server" and version " < 3.0"		-		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				3.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "3.0"		-		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				3.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "3.0"		maintenance_release1		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				3.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "3.0"		maintenance_release2		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				3.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "3.0"		maintenance_release3		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				4.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "4.0"		-		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				4.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "4.0"		maintenance_release1		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				4.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "4.0"		maintenance_release2		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				4.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "4.0"		maintenance_release3		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				4.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "4.0"		maintenance_release3_security_patch3		Affected
Cisco Search vendor "Cisco"		Webex Meetings Server Search vendor "Cisco" for product "Webex Meetings Server"				4.0 Search vendor "Cisco" for product "Webex Meetings Server" and version "4.0"		maintenance_release3_security_patch4		Affected