CVE-2021-1261 Explained : Impact and Mitigation

Cisco SD-WAN Command Injection Vulnerabilities were discovered on January 20, 2021, allowing an authenticated attacker to execute commands with root privileges. The vulnerability affects Cisco SD-WAN Solution.

Understanding CVE-2021-20657

This section delves into the impact, technical details, and mitigation strategies regarding the Cisco SD-WAN Command Injection Vulnerabilities.

What is CVE-2021-20657?

Multiple vulnerabilities in Cisco SD-WAN products enable an authenticated attacker to perform command injections, granting them root-level access to affected devices.

The Impact of CVE-2021-20657

The high-severity vulnerability poses a significant threat as attackers could exploit it to execute arbitrary commands with elevated privileges, compromising the security of the device.

Technical Details of CVE-2021-20657

Vulnerability Description

The vulnerability allows attackers to execute commands with root privileges on Cisco SD-WAN Solution devices, posing a severe security risk.

Affected Systems and Versions

The vulnerability impacts Cisco SD-WAN Solution, affecting all versions of the product.

Exploitation Mechanism

By exploiting this vulnerability, authenticated attackers can inject and execute arbitrary commands on the target device, leading to unauthorized actions with elevated privileges.

Mitigation and Prevention

Immediate Steps to Take

Cisco recommends applying the necessary security patches and updates to address the vulnerabilities promptly. Ensure that access control policies are in place to limit exposure.

Long-Term Security Practices

Routinely monitor and update your Cisco SD-WAN Solution to mitigate the risk of potential command injection attacks. Conduct regular security assessments and audits to identify and remediate vulnerabilities.

Patching and Updates

Stay informed about security advisories from Cisco and promptly apply patches to eliminate vulnerabilities and enhance the security posture of your network.