CVE-2020-3557 : Vulnerability Insights and Analysis
Learn about CVE-2020-3557, a vulnerability in Cisco Firepower Management Center Software that could allow a remote attacker to cause a denial of service condition. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A vulnerability in the host input API daemon of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.
Understanding CVE-2020-3557
This CVE involves a vulnerability in Cisco Firepower Management Center Software that could lead to a DoS attack.
What is CVE-2020-3557?
The vulnerability in the host input API daemon of Cisco FMC Software allows a remote attacker to trigger a DoS condition by exploiting improper certificate validation. By sending a crafted data stream to the host input daemon, an attacker can cause the daemon to continuously reload, resulting in a DoS condition.
The Impact of CVE-2020-3557
The vulnerability poses a medium severity risk with a CVSS base score of 5.3. If successfully exploited, it could lead to a denial of service on the affected device.
Technical Details of CVE-2020-3557
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability is a result of improper certificate validation in the host input API daemon of Cisco FMC Software, allowing attackers to disrupt the service.
Affected Systems and Versions
- Product: Cisco Firepower Management Center
- Vendor: Cisco
- Affected Version: n/a
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a crafted data stream to the host input daemon, causing it to restart and potentially leading to a DoS condition.
Mitigation and Prevention
Protecting systems from CVE-2020-3557 is crucial to prevent potential DoS attacks.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor network traffic for any suspicious activity targeting the host input API daemon.
Long-Term Security Practices
- Regularly update and patch software to address known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Cisco has likely released patches or updates to address this vulnerability. Ensure timely installation to mitigate the risk of exploitation.