CVE-2021-1503

Cisco Webex Network Recording Player and Webex Player Memory Corruption Vulnerability

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A vulnerability in Cisco Webex Network Recording Player for Windows and MacOS and Cisco Webex Player for Windows and MacOS could allow an attacker to execute arbitrary code on an affected system. This vulnerability is due to insufficient validation of values in Webex recording files that are in either Advanced Recording Format (ARF) or Webex Recording Format (WRF). An attacker could exploit this vulnerability by sending a user a malicious ARF or WRF file through a link or email attachment and persuading the user to open the file with the affected software on the local system. A successful exploit could allow the attacker to execute arbitrary code on the affected system with the privileges of the targeted user.

Una vulnerabilidad en Cisco Webex Network Recording Player para Windows y MacOS y Cisco Webex Player para Windows y MacOS, podría permitir a un atacante ejecutar código arbitrario en un sistema afectado. Esta vulnerabilidad es debido a una comprobación insuficiente de valores en los archivos de grabación de Webex que están tanto en Advanced Recording Format (ARF) como en Webex Recording Format (WRF). Un atacante podría explotar esta vulnerabilidad mediante el envío a un usuario un archivo ARF o WRF malicioso mediante un enlace o un archivo adjunto de correo electrónico y convenciendo al usuario de que abra el archivo con el software afectado en el sistema local. Una explotación con éxito podría permitir al atacante ejecutar código arbitrario en el sistema afectado con los privilegios del usuario objetivo

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-11-13 CVE Reserved
2021-06-04 CVE Published
2024-05-08 EPSS Updated
2024-09-17 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787: Out-of-bounds Write

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-player-rCFDeVj2	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 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 Player Search vendor "Cisco" for product "Webex Player"				< 41.2 Search vendor "Cisco" for product "Webex Player" and version " < 41.2"		macos		Affected
Cisco Search vendor "Cisco"		Webex Player Search vendor "Cisco" for product "Webex Player"				< 41.2 Search vendor "Cisco" for product "Webex Player" and version " < 41.2"		windows		Affected