CVE-2020-3151 Explained : Impact and Mitigation

A vulnerability in the CLI of Cisco Connected Mobile Experiences (CMX) could allow an authenticated, local attacker to bypass restrictions on the CLI, potentially leading to unauthorized commands execution.

Understanding CVE-2020-3151

This CVE involves a security vulnerability in Cisco CMX that could be exploited by attackers with administrative credentials.

What is CVE-2020-3151?

The vulnerability in the CLI of Cisco CMX allows an attacker to escape the restricted shell and execute unauthorized commands with non-root user privileges.

The Impact of CVE-2020-3151

The vulnerability poses a medium severity risk with high confidentiality impact, potentially enabling attackers to execute unauthorized commands.

Technical Details of CVE-2020-3151

This section provides detailed technical information about the vulnerability.

Vulnerability Description

The vulnerability in Cisco CMX's CLI is a result of insufficient security mechanisms in the restricted shell implementation, allowing attackers to send crafted commands to bypass restrictions.

Affected Systems and Versions

Product: Cisco Connected Mobile Experiences
Vendor: Cisco
Affected Version: Not applicable

Exploitation Mechanism

Attackers with valid administrative credentials can exploit this vulnerability by sending crafted commands to the CLI, escaping the restricted shell, and executing unauthorized commands.

Mitigation and Prevention

To address CVE-2020-3151, follow these mitigation strategies:

Immediate Steps to Take

Monitor Cisco's security advisories for patches or updates
Restrict access to administrative credentials
Implement network segmentation to limit the impact of potential exploits

Long-Term Security Practices

Regularly update and patch Cisco CMX systems
Conduct security training for staff to recognize and report suspicious activities

Patching and Updates

Apply patches or updates provided by Cisco to fix the vulnerability and enhance system security.