CVE-2021-1328 : Security Advisory and Response

Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities.

Understanding CVE-2021-1328

This CVE involves multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers, allowing an attacker to execute arbitrary code or cause devices to restart unexpectedly.

What is CVE-2021-1328?

The CVE describes security flaws in Cisco Small Business RV Series Routers that could be exploited by remote attackers with valid credentials to execute malicious code or trigger device restarts.

The Impact of CVE-2021-1328

This vulnerability could lead to an attacker executing arbitrary code as the root user on the underlying operating system or causing a denial of service condition by reloading the affected device.

Technical Details of CVE-2021-1328

This section dives into the specifics of the vulnerability.

Vulnerability Description

The vulnerabilities stem from improper validation of user input in the web-based management interface, enabling attackers to exploit the flaws by sending crafted HTTP requests.

Affected Systems and Versions

Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers are impacted by these vulnerabilities.

Exploitation Mechanism

To exploit these vulnerabilities, an attacker requires valid administrator credentials on the targeted device.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-1328.

Immediate Steps to Take

Ensure that your devices are protected with the latest security measures and monitor for any unusual activity.

Long-Term Security Practices

Implement secure configuration practices and regularly update your devices to prevent exploitation.

Patching and Updates

Stay informed about security patches released by Cisco and promptly apply them to address known vulnerabilities.