CVE-2020-3210 : What You Need to Know

A vulnerability in the CLI parsers of Cisco IOS Software for Cisco 809 and 829 Industrial Integrated Services Routers (Industrial ISRs) and Cisco 1000 Series Connected Grid Routers (CGR1000) could allow an authenticated, local attacker to execute arbitrary shell commands on the Virtual Device Server (VDS) of an affected device. The attacker must have valid user credentials at privilege level 15. The impact includes high confidentiality, integrity, and availability impacts.

Understanding CVE-2020-3210

This CVE involves a command injection vulnerability in Cisco IOS Software for specific routers, enabling attackers to run arbitrary commands on the affected device.

What is CVE-2020-3210?

The vulnerability allows an authenticated attacker to execute malicious shell commands on the Virtual Device Server (VDS) with root user privileges.

The Impact of CVE-2020-3210

The vulnerability poses a medium-severity risk with a CVSS base score of 6.7. The impact includes high confidentiality, integrity, and availability risks.

Technical Details of CVE-2020-3210

This section provides detailed technical information about the vulnerability.

Vulnerability Description

Insufficient validation of arguments in specific VDS-related CLI commands allows attackers to inject and execute arbitrary commands on the VDS.

Affected Systems and Versions

Product: Cisco IOS 12.2(60)EZ16
Vendor: Cisco
Version: n/a

Exploitation Mechanism

Attackers can exploit the vulnerability by authenticating to the device and injecting malicious input as the argument of a vulnerable command.

Mitigation and Prevention

Protect your systems from CVE-2020-3210 with the following steps:

Immediate Steps to Take

Apply vendor-provided patches and updates promptly.
Monitor network traffic for signs of exploitation.
Restrict access to privileged accounts.

Long-Term Security Practices

Regularly update and patch all software and firmware.
Implement strong password policies and multi-factor authentication.
Conduct regular security training and awareness programs.

Patching and Updates

Cisco has released patches to address this vulnerability. Ensure timely application of these patches to secure your systems.