CVE-2021-1215 : What You Need to Know
Multiple vulnerabilities in Cisco Small Business RV Series Routers could allow remote attackers to execute code or trigger restarts. Learn about impacts and mitigation strategies.
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers are affected by multiple vulnerabilities in their web-based management interface. These vulnerabilities could allow a remote attacker to execute arbitrary code or cause a denial of service (DoS) attack on the affected devices.
Understanding CVE-2021-1215
This section will explore the details, impact, and mitigation strategies related to the CVE-2021-1215 vulnerability.
What is CVE-2021-1215?
The vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could be exploited by a remote attacker with valid credentials to execute arbitrary code or trigger device restarts, leading to a DoS condition.
The Impact of CVE-2021-1215
The vulnerabilities have a base severity score of 7.2 (High) according to the CVSS v3.1 metrics. Attack complexity is low, but the availability, confidentiality, and integrity impacts are high. An attacker could potentially gain root access to the underlying operating system.
Technical Details of CVE-2021-1215
Let's delve into the technical aspects of the vulnerabilities.
Vulnerability Description
The vulnerabilities are a result of improper validation of user input in the web-based management interface. Attackers can exploit this by sending crafted HTTP requests to the affected devices.
Affected Systems and Versions
The Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers are impacted. The specific affected versions are not available.
Exploitation Mechanism
To exploit these vulnerabilities, an attacker needs valid administrator credentials on the targeted device. Successful exploitation could lead to arbitrary code execution or device restarts.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2021-1215.
Immediate Steps to Take
Users are advised to restrict network access to the management interface and ensure strong, unique passwords for administrator accounts. Additionally, monitoring network traffic for signs of exploitation is recommended.
Long-Term Security Practices
Regularly updating firmware, implementing network segmentation, and conducting security audits can enhance the overall security posture and prevent potential attacks.
Patching and Updates
Cisco has not released software updates addressing these vulnerabilities. Users are advised to stay informed about any future patches and apply them promptly.