CVE-2021-1346 Explained : Impact and Mitigation

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow remote attackers to execute arbitrary code or trigger unexpected restarts. Learn more about the impact, technical details, and mitigation steps.

Understanding CVE-2021-1346

This CVE pertains to multiple vulnerabilities found in the web-based management interface of Cisco Small Business RV Series Routers.

What is CVE-2021-1346?

The CVE-2021-1346 vulnerability allows authenticated remote attackers to execute arbitrary code or cause affected devices to restart unexpectedly.

The Impact of CVE-2021-1346

The high-severity vulnerability can result in an attacker executing code as the root user or causing devices to reload, leading to a denial of service condition.

Technical Details of CVE-2021-1346

The vulnerability is attributed to improper validation of user-supplied input in the web-based management interface of the affected routers.

Vulnerability Description

Attackers can exploit the vulnerability by sending crafted HTTP requests, requiring valid administrator credentials on the affected device.

Affected Systems and Versions

The vulnerability impacts Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers.

Exploitation Mechanism

Attackers can trigger the vulnerability by manipulating user input in HTTP requests.

Mitigation and Prevention

To secure your systems from CVE-2021-1346, take immediate action and adopt long-term security practices.

Immediate Steps to Take

Apply relevant security patches provided by Cisco immediately.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update firmware and software to mitigate future vulnerabilities.
Implement strong password policies and access controls.
Conduct regular security audits and assessments to identify weaknesses.

Patching and Updates

Stay informed about security advisories from Cisco and apply patches promptly.