// For flags

CVE-2021-1568

Cisco AnyConnect Secure Mobility Client for Windows Denial of Service Vulnerability

Severity Score

5.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to cause a denial of service (DoS) condition on an affected system. This vulnerability is due to uncontrolled memory allocation. An attacker could exploit this vulnerability by copying a crafted file to a specific folder on the system. A successful exploit could allow the attacker to crash the VPN Agent service when the affected application is launched, causing it to be unavailable to all users of the system. To exploit this vulnerability, the attacker must have valid credentials on a multiuser Windows system.

Una vulnerabilidad en Cisco AnyConnect Secure Mobility Client para Windows, podría permitir a un atacante local autenticado causar una condición de denegación de servicio (DoS) en un sistema afectado. Esta vulnerabilidad es debido a una asignación no controlada de la memoria. Un atacante podría explotar esta vulnerabilidad copiando un archivo diseñado en una carpeta específica del sistema. Una explotación con éxito podría permitir al atacante bloquear el servicio de Agente VPN cuando es lanzada la aplicación afectada, causando que no esté disponible para todos los usuarios del sistema. Para explotar esta vulnerabilidad, el atacante debe tener credenciales válidas en un sistema Windows multiusuario

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-11-13 CVE Reserved
  • 2021-06-16 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-09-17 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-789: Memory Allocation with Excessive Size Value
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Anyconnect Secure Mobility Client
Search vendor "Cisco" for product "Anyconnect Secure Mobility Client"
 < 4.10.01075
Search vendor "Cisco" for product "Anyconnect Secure Mobility Client" and version " < 4.10.01075"
windows
Affected