CVE-2021-1194 : Exploit Details and Defense Strategies

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV series routers have been identified that could allow remote attackers to execute arbitrary code or cause devices to restart unexpectedly.

Understanding CVE-2021-1194

This CVE-2021-1194 affects Cisco Small Business RV series routers due to improper validation of user-supplied input in the web-based management interface.

What is CVE-2021-1194?

The vulnerability allows authenticated remote attackers to execute arbitrary code or trigger a denial of service (DoS) condition.

The Impact of CVE-2021-1194

Exploitation of these vulnerabilities could lead to the execution of arbitrary code on the underlying operating system or cause a DoS condition on the device.

Technical Details of CVE-2021-1194

These details encompass the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerabilities stem from improper validation of user-supplied input, allowing attackers to send crafted HTTP requests to the affected devices.

Affected Systems and Versions

Cisco Small Business RV110W, RV130, RV130W, and RV215W routers are affected, exposed to potential remote attacks.

Exploitation Mechanism

Attackers with valid administrator credentials can exploit the vulnerabilities through crafted HTTP requests, enabling code execution or device restarts.

Mitigation and Prevention

Effective steps to mitigate the impact and prevent future exploitation of the vulnerabilities.

Immediate Steps to Take

It is crucial to ensure proper network segmentation, restrict access to the management interface, and monitor for any unusual activities.

Long-Term Security Practices

Regular security updates, employee training on identifying phishing attempts, and comprehensive network security protocols are essential for long-term protection.

Patching and Updates

Cisco is yet to release software updates addressing these vulnerabilities. Stay informed about the release of patches and apply them promptly for enhanced security.