CVE-2021-1450 : What You Need to Know

A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client could allow an authenticated, local attacker to cause a denial of service (DoS) condition by sending crafted IPC messages, resulting in a DoS condition on the device. The Cisco Product Security Incident Response Team (PSIRT) is aware of available exploit code for this vulnerability. This CVE was published on February 24, 2021, affecting Cisco AnyConnect Secure Mobility Client.

Understanding CVE-2021-1450

This section provides insights into the vulnerability affecting Cisco AnyConnect Secure Mobility Client.

What is CVE-2021-1450?

CVE-2021-1450 is a vulnerability in the IPC channel of Cisco AnyConnect Secure Mobility Client that enables a local attacker with valid credentials to trigger a DoS condition on the device.

The Impact of CVE-2021-1450

The vulnerability allows attackers to disrupt the AnyConnect process, potentially leading to a DoS condition on affected devices.

Technical Details of CVE-2021-1450

Let's delve into the technical aspects and details of CVE-2021-1450.

Vulnerability Description

Insufficient validation of user-supplied input in the IPC channel of Cisco AnyConnect Secure Mobility Client allows attackers to exploit the vulnerability by sending crafted IPC messages, causing the AnyConnect process to stop.

Affected Systems and Versions

The vulnerability impacts Cisco AnyConnect Secure Mobility Client, with the specific affected versions marked as 'n/a'.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending specially crafted IPC messages to the AnyConnect process on the affected device, potentially leading to a DoS condition.

Mitigation and Prevention

Discover the steps to mitigate the risk posed by CVE-2021-1450 and prevent future occurrences.

Immediate Steps to Take

Organizations should ensure that unauthorized entities cannot access the AnyConnect process, limiting the possibility of DoS attacks.

Long-Term Security Practices

Implement regular security trainings, keep systems up-to-date, and monitor for any unusual activity that could indicate an ongoing attack.

Patching and Updates

Stay informed about security patches released by Cisco to address the vulnerability and apply them promptly to secure your systems.