CVE-2020-3456 Explained : Impact and Mitigation
Learn about CVE-2020-3456, a high-severity vulnerability in Cisco FXOS Software that allows attackers to conduct CSRF attacks. Find mitigation steps and patching recommendations here.
A vulnerability in the Cisco Firepower Chassis Manager (FCM) of Cisco FXOS Software could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attack against a user of an affected device.
Understanding CVE-2020-3456
This CVE involves a security vulnerability in Cisco FXOS Software that could be exploited by attackers to perform CSRF attacks.
What is CVE-2020-3456?
The vulnerability in the Cisco Firepower Chassis Manager (FCM) of Cisco FXOS Software allows attackers to execute CSRF attacks by tricking users into clicking malicious links.
The Impact of CVE-2020-3456
- CVSS Base Score: 8.8 (High Severity)
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: Required
- Confidentiality, Integrity, and Availability Impact: High
Technical Details of CVE-2020-3456
This section provides more in-depth technical information about the vulnerability.
Vulnerability Description
The vulnerability is a result of insufficient CSRF protections for the FCM interface, enabling attackers to send unauthorized requests on behalf of users.
Affected Systems and Versions
- Affected Product: Cisco Adaptive Security Appliance (ASA) Software
- Vendor: Cisco
- Affected Version: Not applicable (n/a)
Exploitation Mechanism
Attackers can exploit this vulnerability by convincing targeted users to click on malicious links, allowing them to perform unauthorized actions.
Mitigation and Prevention
Protecting systems from this vulnerability requires immediate actions and long-term security practices.
Immediate Steps to Take
- Implement security patches provided by Cisco
- Educate users about phishing and social engineering tactics
- Monitor network traffic for suspicious activities
Long-Term Security Practices
- Regularly update and patch software and firmware
- Conduct security training for employees
- Employ network segmentation to limit the impact of potential attacks
Patching and Updates
Apply the latest security updates and patches released by Cisco to address this vulnerability.