CVE-2020-3286 Explained : Impact and Mitigation

Multiple vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers could allow an attacker to execute arbitrary code with root privileges.

Understanding CVE-2020-3286

This CVE involves stack overflow vulnerabilities in Cisco Small Business RV Series Routers, potentially leading to arbitrary code execution.

What is CVE-2020-3286?

The vulnerabilities in the web-based management interface of Cisco Small Business RV Series Routers allow a remote attacker with administrative privileges to execute arbitrary code on the affected device.

The Impact of CVE-2020-3286

The vulnerabilities could result in a complete device crash or enable the attacker to run malicious code with root privileges on the device's operating system.

Technical Details of CVE-2020-3286

This section provides more in-depth technical insights into the CVE.

Vulnerability Description

Insufficient boundary restrictions on user-supplied input to scripts in the web-based management interface lead to stack overflow vulnerabilities.

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, and availability

Mitigation and Prevention

Protecting systems from CVE-2020-3286 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches promptly
Restrict network access to the management interface
Monitor for any unusual network activity

Long-Term Security Practices

Regularly update firmware and software
Conduct security assessments and audits
Educate users on secure practices

Patching and Updates

Regularly check for security advisories from Cisco
Implement patches as soon as they are available