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CVE-2021-1568

Cisco AnyConnect Secure Mobility Client for Windows Denial of Service Vulnerability

Published: Jun 16, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-789
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.2%
Top 89.2%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-789

Affected Products

anyconnect secure mobility clientcisco
On-premSecurity Product
Security Products / secure-gateway-vpn
Cisco AnyConnect Secure Mobility ClientCisco
Desktop App
Networking Infrastructure
AnyConnect Secure Mobility ClientCisco Systems Inc.
On-premDesktop App
Networking Infrastructure
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.
cisco systems inc.commercialUSNetworking Infrastructureaka cisco systems, cisco

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

References

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dos-hMhyDfb8
tools.cisco.com

Timeline

Published
Jun 16, 2021
Last Updated
Nov 21, 2024

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