CVE-2022-20818 : Security Advisory and Response

Vulnerabilities in the CLI of Cisco SD-WAN Software can lead to privilege escalation, enabling an authenticated local attacker to execute arbitrary commands as the root user.

Understanding CVE-2022-20818

This CVE refers to multiple security flaws found in Cisco SD-WAN Software that could potentially allow a local attacker to gain elevated privileges on the system.

What is CVE-2022-20818?

The vulnerabilities in Cisco SD-WAN Software are a result of improper access controls on commands within the application CLI. Exploiting these vulnerabilities could enable an attacker to run malicious commands, leading to privilege escalation.

The Impact of CVE-2022-20818

With a base score of 7.8, this CVE poses a high risk, impacting confidentiality, integrity, and availability. An attacker with low privileges required and local access can exploit the vulnerabilities, potentially causing significant harm.

Technical Details of CVE-2022-20818

Vulnerability Description

The vulnerabilities in the CLI of Cisco SD-WAN Software allow an authenticated, local attacker to perform arbitrary commands as the root user by exploiting improper access controls.

Affected Systems and Versions

The affected product is Cisco SD-WAN Solution with the status 'affected' and version 'n/a'.

Exploitation Mechanism

Attack vector is local with low attack complexity. Attackers with low privileges can exploit the flaws by executing malicious commands on the application CLI.

Mitigation and Prevention

Immediate Steps to Take

Cisco users are advised to apply the necessary security updates provided by the vendor to mitigate the risks associated with CVE-2022-20818.

Long-Term Security Practices

Regularly monitor and audit CLI commands to detect any unauthorized activities that could potentially lead to privilege escalation.

Patching and Updates

Stay updated with security advisories from Cisco and promptly install patches and updates to address security vulnerabilities.