CVE-2021-1210 : What You Need to Know

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow remote attackers to execute arbitrary code or cause a denial of service. Learn about the impact, technical details, and mitigation steps associated with this CVE.

Understanding CVE-2021-1210

This section dives into the details of CVE-2021-1210, outlining the potential risks and vulnerabilities associated with Cisco Small Business RV Series Routers.

What is CVE-2021-1210?

The vulnerability in the web-based management interface of Cisco Small Business RV Series Routers allows attackers to execute code or initiate a denial of service. The flaw arises from inadequate validation of user inputs in the interface.

The Impact of CVE-2021-1210

If exploited, this vulnerability could lead to remote attackers executing code as root users or causing the device to reload, resulting in a denial of service condition. This could have severe consequences for the affected devices and their users.

Technical Details of CVE-2021-1210

This section delves into the technical aspects of CVE-2021-1210, including the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability stems from improper validation of user-supplied inputs in the web-based management interface of Cisco Small Business RV Series Routers. Attackers can exploit this flaw by sending crafted HTTP requests to the affected device.

Affected Systems and Versions

The vulnerability affects Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers. All versions of the firmware are impacted.

Exploitation Mechanism

To exploit this vulnerability, an attacker must send specifically crafted HTTP requests to the target device. Successful exploitation could grant the attacker root access or cause the device to reload unexpectedly.

Mitigation and Prevention

This section provides guidance on steps to mitigate the risks associated with CVE-2021-1210 and prevent potential exploitation in the future.

Immediate Steps to Take

Users are advised to implement security best practices, restrict network access to the affected devices, and deploy intrusion detection systems to identify potential exploitation attempts.

Long-Term Security Practices

Ensuring timely software updates and patches from Cisco can help address the vulnerabilities in the web-based management interface of the affected routers.

Patching and Updates

Cisco is yet to release software updates that specifically address the vulnerabilities associated with CVE-2021-1210. Stay tuned to Cisco's security advisories for patches and mitigations.