CVE-2021-1193 : Security Advisory and Response

Cisco Small Business RV Series Routers are affected by multiple vulnerabilities in their web-based management interface. An authenticated remote attacker can exploit these vulnerabilities to execute arbitrary code or trigger unexpected restarts on the device.

Understanding CVE-2021-1193

This CVE-2021-1193 impacts the Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers due to improper validation of user input in the web-based interface.

What is CVE-2021-1193?

The CVE-2021-1193 vulnerability allows attackers to execute arbitrary code or cause a denial of service (DoS) condition by sending crafted HTTP requests to affected devices.

The Impact of CVE-2021-1193

The impact is significant, with attackers being able to gain root access on the underlying OS or force device reloads by exploiting these vulnerabilities.

Technical Details of CVE-2021-1193

These are the specific technical details associated with CVE-2021-1193.

Vulnerability Description

The vulnerabilities are a result of improper validation of user-supplied input in the web-based management interface of the affected Cisco routers.

Affected Systems and Versions

Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit these vulnerabilities by sending crafted HTTP requests to the affected devices.

Mitigation and Prevention

To safeguard against CVE-2021-1193, follow these mitigation steps and best security practices.

Immediate Steps to Take

Ensure that all administrator credentials on the affected device are secure and limit network exposure for all control plane protocols in the network infrastructure.

Long-Term Security Practices

Regularly update software and apply patches from Cisco to address these vulnerabilities.

Patching and Updates

As of now, Cisco has not released any software updates to mitigate CVE-2021-1193.