CVE-2022-20716 Explained : Impact and Mitigation

A vulnerability in the CLI of Cisco SD-WAN Software could allow an authenticated, local attacker to gain escalated privileges.

Understanding CVE-2022-20716

This vulnerability in Cisco SD-WAN Solution involves improper access control on files, enabling a local attacker to elevate privileges.

What is CVE-2022-20716?

Cisco SD-WAN Software has a vulnerability that could be exploited by a local attacker to modify certain files, resulting in escalated privileges as the root user.

The Impact of CVE-2022-20716

The vulnerability allows attackers to gain escalated privileges, potentially leading to unauthorized access and control over the affected system.

Technical Details of CVE-2022-20716

The vulnerability has a CVSS v3.1 base score of 7.8, with high impact on confidentiality, integrity, and availability.

Vulnerability Description

The flaw stems from improper access control on files within the system, enabling unauthorized modification and privilege escalation.

Affected Systems and Versions

Cisco SD-WAN Solution is affected, with all versions susceptible to this vulnerability.

Exploitation Mechanism

A local attacker with authenticated access can exploit this vulnerability by manipulating specific files to gain escalated privileges.

Mitigation and Prevention

To address CVE-2022-20716, it is crucial to implement immediate security measures and long-term practices.

Immediate Steps to Take

Ensure monitoring for any unauthorized file modifications and restrict access to sensitive system files.

Long-Term Security Practices

Regular security training, access control reviews, and timely software updates are essential to enhance overall system security.

Patching and Updates

Apply security patches and updates provided by Cisco to mitigate the vulnerability effectively.