CVE-2021-1191 Explained : Impact and Mitigation
Learn about CVE-2021-1191, a high-severity vulnerability in Cisco Small Business RV Series Routers allowing attackers to execute code or disrupt services. Explore impact, technical details, and mitigation steps.
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow attackers to execute arbitrary code or cause denial of service. Learn more about the impact, technical details, and mitigation steps related to this CVE.
Understanding CVE-2021-1191
This section delves into the details of the CVE-2021-1191 vulnerability affecting Cisco Small Business RV Series Routers.
What is CVE-2021-1191?
The vulnerability in the web-based management interface of Cisco Small Business RV Series Routers permits attackers to execute arbitrary code or initiate a denial of service attack by sending crafted HTTP requests.
The Impact of CVE-2021-1191
With a CVSS base score of 7.2, this high-severity vulnerability could allow attackers to execute code with high privileges, leading to a system compromise or denial of service.
Technical Details of CVE-2021-1191
Explore the technical aspects of the CVE-2021-1191 vulnerability that affects Cisco Small Business RV Series Routers.
Vulnerability Description
The vulnerability arises from improper input validation in the web-based management interface, enabling attackers to exploit it via crafted HTTP requests.
Affected Systems and Versions
Cisco Small Business RV Series Routers, including RV110W, RV130, RV130W, and RV215W, are affected by this vulnerability.
Exploitation Mechanism
Attackers with valid administrator credentials can exploit this vulnerability to execute arbitrary code as the root user or cause a denial of service by reloading the device.
Mitigation and Prevention
Learn how to mitigate the risks associated with CVE-2021-1191 affecting Cisco Small Business RV Series Routers.
Immediate Steps to Take
As a precaution, users should restrict access to the web-based management interface of affected routers and monitor for any unusual activity.
Long-Term Security Practices
Implementing network segmentation, keeping software up to date, and using strong authentication measures can enhance the security posture of the network.
Patching and Updates
While Cisco has not released specific patches for these vulnerabilities, users are advised to stay informed about official updates and apply them promptly to safeguard their devices.