CVE-2021-1321 Explained : Impact and Mitigation
Discover the impact of CVE-2021-1321 on Cisco Small Business RV Series Routers. Learn about the vulnerabilities, affected systems, exploitation risks, and mitigation steps.
Cisco Small Business RV Series Routers Management Interface Remote Command Execution and Denial of Service Vulnerabilities.
Understanding CVE-2021-1321
This CVE relates to multiple vulnerabilities found in the web-based management interface of Cisco Small Business RV Series routers, leading to potential Remote Command Execution and Denial of Service scenarios.
What is CVE-2021-1321?
Multiple vulnerabilities in Cisco Small Business RV Series Routers could allow remote attackers to execute arbitrary code or cause devices to restart unexpectedly due to improper validation of user input in the management interface.
The Impact of CVE-2021-1321
The vulnerabilities can be exploited by an attacker with valid administrator credentials, potentially allowing them to execute code as root or trigger device reloads, resulting in denial of service conditions.
Technical Details of CVE-2021-1321
This section provides insights into the vulnerability description, affected systems and versions, as well as the exploitation mechanism.
Vulnerability Description
The vulnerabilities stem from inadequate input validation in the web-based management interface, enabling attackers to send crafted HTTP requests for code execution or device restarts.
Affected Systems and Versions
Cisco Small Business RV016, RV042, RV042G, RV082, RV320, and RV325 Routers are among the impacted devices.
Exploitation Mechanism
Successful exploitation requires sending malicious HTTP requests to affected devices, necessitating valid administrator credentials for execution.
Mitigation and Prevention
Learn about the immediate steps to take, long-term security practices, and the importance of timely patching and updates.
Immediate Steps to Take
Ensure devices are updated with the latest firmware patches, monitor for unusual activities, and restrict network access to authorized personnel.
Long-Term Security Practices
Enforce strong password policies, implement network segmentation, and conduct regular security audits to detect and address vulnerabilities proactively.
Patching and Updates
Stay informed about security advisories from Cisco, apply recommended patches promptly, and maintain a proactive approach to network security.