CVE-2021-1151 Explained : Impact and Mitigation
Discover the details of CVE-2021-1151 affecting Cisco Small Business RV Series Routers. Learn about the impact, technical aspects, and mitigation steps for this cross-site scripting (XSS) vulnerability.
Cisco Small Business RV Series Routers are affected by multiple vulnerabilities in the web-based management interface, allowing remote attackers to conduct cross-site scripting (XSS) attacks. Here's everything you need to know about CVE-2021-1151.
Understanding CVE-2021-1151
This section provides an overview of the vulnerability affecting Cisco Small Business RV Series Routers.
What is CVE-2021-1151?
The CVE-2021-1151 vulnerability resides in the web-based management interface of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers. It allows authenticated remote attackers to execute XSS attacks against users of the interface due to insufficient input validation.
The Impact of CVE-2021-1151
The impact of this vulnerability is rated as medium. An attacker with valid administrator credentials can exploit this flaw to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.
Technical Details of CVE-2021-1151
This section delves into the technical aspects of the CVE-2021-1151 vulnerability.
Vulnerability Description
The vulnerability arises from inadequate input validation in the web-based management interface, enabling attackers to craft HTTP requests to target devices.
Affected Systems and Versions
The Cisco Small Business RV Series Routers, including RV110W, RV130, RV130W, and RV215W, are affected by this vulnerability.
Exploitation Mechanism
To exploit CVE-2021-1151, an attacker needs valid administrator credentials on the affected device to send crafted HTTP requests.
Mitigation and Prevention
To safeguard against CVE-2021-1151, immediate steps and long-term security practices are necessary.
Immediate Steps to Take
Ensure all devices are updated with the latest security patches from Cisco. Monitor network activity for signs of exploitation.
Long-Term Security Practices
Implement regular security training for administrators and users to mitigate risks associated with XSS attacks.
Patching and Updates
Regularly check for security advisories from Cisco and apply patches promptly to address known vulnerabilities.