CVE-2020-3276 Explained : Impact and Mitigation
Learn about CVE-2020-3276 involving command injection vulnerabilities in Cisco Small Business RV Series Routers, allowing attackers to execute arbitrary commands with root privileges. Find mitigation steps and patching advice here.
Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow an attacker to execute arbitrary commands with root privileges.
Understanding CVE-2020-3276
This CVE involves command injection vulnerabilities in Cisco Small Business RV Series Routers, potentially enabling remote attackers to execute arbitrary commands with elevated privileges.
What is CVE-2020-3276?
The vulnerabilities stem from inadequate validation of user input in the routers' web-based management interface, allowing authenticated remote attackers with administrative privileges to run malicious commands on affected devices.
The Impact of CVE-2020-3276
The vulnerabilities could be exploited by attackers to execute arbitrary commands with root privileges on the underlying operating system, posing a significant security risk to affected devices.
Technical Details of CVE-2020-3276
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers allow attackers to execute arbitrary commands due to improper input validation.
Affected Systems and Versions
- Product: Cisco Small Business RV Series Router Firmware
- Vendor: Cisco
- Versions: Not Applicable
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Privileges Required: High
- User Interaction: None
- Scope: Unchanged
- CVSS Score: 7.2 (High)
- Impact: High (Confidentiality, Integrity, Availability)
Mitigation and Prevention
Protecting against CVE-2020-3276 requires immediate action and long-term security practices.
Immediate Steps to Take
- Apply vendor-provided patches promptly
- Restrict access to the management interface
- Monitor network traffic for signs of exploitation
Long-Term Security Practices
- Regularly update firmware and security patches
- Implement strong password policies and multi-factor authentication
- Conduct security audits and penetration testing
Patching and Updates
- Cisco has released security updates to address these vulnerabilities
- Regularly check for and apply firmware updates from the vendor