CVE-2020-3186 Explained : Impact and Mitigation
Learn about CVE-2020-3186, a vulnerability in Cisco Firepower Threat Defense Software allowing remote attackers to bypass management access lists. Find mitigation steps and prevention measures here.
A vulnerability in the management access list configuration of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass a configured management interface access list on an affected system.
Understanding CVE-2020-3186
This CVE involves a security vulnerability in Cisco Firepower Threat Defense (FTD) Software that could potentially be exploited by remote attackers.
What is CVE-2020-3186?
The vulnerability in the management access list configuration of Cisco FTD Software allows attackers to bypass configured management interface access lists by sending crafted remote management traffic.
The Impact of CVE-2020-3186
If successfully exploited, attackers can bypass configured management access list policies, enabling unauthorized access to the management interface.
Technical Details of CVE-2020-3186
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability arises from the configuration of different management access lists, where ports allowed in one list are denied in another, creating a loophole for exploitation.
Affected Systems and Versions
- Product: Cisco Firepower Threat Defense Software
- Vendor: Cisco
- Affected Version: Not Applicable
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Base Score: 5.3 (Medium)
- Integrity Impact: Low
- Privileges Required: None
- User Interaction: None
- Vector String: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Mitigation and Prevention
Steps to address and prevent the CVE-2020-3186 vulnerability.
Immediate Steps to Take
- Apply vendor-provided patches or updates promptly.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update and patch software to prevent vulnerabilities.
- Implement network segmentation to limit the impact of potential breaches.
Patching and Updates
- Stay informed about security advisories from Cisco.
- Apply recommended patches and updates to mitigate risks effectively.