CVE-2021-1170 : What You Need to Know

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an authenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly.

Understanding CVE-2021-1170

This CVE refers to multiple vulnerabilities in Cisco Small Business RV Series Router Firmware that could enable a remote attacker with valid credentials to execute code or disrupt the device's operation.

What is CVE-2021-1170?

The vulnerabilities in the web-based management interface of Cisco routers could be exploited by an attacker sending crafted HTTP requests to the device, potentially leading to arbitrary code execution or denial of service. The lack of proper validation of user input is at the core of these security issues.

The Impact of CVE-2021-1170

The vulnerabilities pose a high-risk concern as a successful exploit could result in the attacker gaining root access to the underlying operating system or causing the device to reload unexpectedly, leading to a denial of service condition.

Technical Details of CVE-2021-1170

The affected product is the Cisco Small Business RV Series Router Firmware, with no specific version provided for this vulnerability.

Vulnerability Description

The vulnerabilities are a result of improper validation of user-supplied input in the web-based management interface, allowing attackers to execute arbitrary code or trigger a device restart.

Affected Systems and Versions

The CVE affects multiple Cisco Small Business RV Series Router Firmware versions due to security flaws in the web-based management interface.

Exploitation Mechanism

Attackers can exploit these vulnerabilities by sending specially crafted HTTP requests to the affected routers, requiring valid administrator credentials on the targeted device.

Mitigation and Prevention

It is crucial to take immediate steps to secure the affected devices and implement long-term security practices.

Immediate Steps to Take

Cisco has not released software updates to address these vulnerabilities, but regular security monitoring and enforcement of the principle of least privilege are recommended.

Long-Term Security Practices

Regularly check for security advisories from Cisco and apply updates promptly once released.

Patching and Updates

Stay informed about security updates and patches released by Cisco specifically for the Cisco Small Business RV Series Router Firmware.