CVE-2021-1568 : Security Advisory and Response

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 CVE was published on June 16, 2021.

Understanding CVE-2021-1568

This section will cover the details related to the CVE-2021-1568 vulnerability.

What is CVE-2021-1568?

CVE-2021-1568 pertains to a vulnerability in Cisco AnyConnect Secure Mobility Client for Windows that could allow a local attacker to create a DoS situation on the system.

The Impact of CVE-2021-1568

The impact of this vulnerability is classified as medium, with a CVSS base score of 5.5. The attacker, with valid credentials on a multiuser Windows system, could exploit this vulnerability to crash the VPN Agent service.

Technical Details of CVE-2021-1568

In this section, we will delve into the technical aspects of CVE-2021-1568.

Vulnerability Description

The vulnerability is due to uncontrolled memory allocation, which an attacker could exploit by copying a crafted file to a specific folder.

Affected Systems and Versions

The affected product is the Cisco AnyConnect Secure Mobility Client for Windows with the version 'n/a'.

Exploitation Mechanism

To exploit this vulnerability, the attacker needs valid credentials on a multiuser Windows system.

Mitigation and Prevention

This section provides information on mitigating and preventing the CVE-2021-1568 vulnerability.

Immediate Steps to Take

Users are advised to apply the necessary security updates provided by Cisco to mitigate the risk associated with this vulnerability.

Long-Term Security Practices

Implementing strong credential management practices and ensuring secure file handling can enhance the overall security posture.

Patching and Updates

Regularly check for security advisories and apply patches promptly to protect the system from potential vulnerabilities.