CVE-2020-3550 : What You Need to Know

A vulnerability in the sfmgr daemon of Cisco Firepower Management Center (FMC) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to perform directory traversal and access directories outside the restricted path.

Understanding CVE-2020-3550

This CVE involves a directory traversal vulnerability in Cisco Firepower Management Center Software and Firepower Threat Defense Software.

What is CVE-2020-3550?

The vulnerability allows an authenticated remote attacker to exploit insufficient input validation, enabling them to read or write arbitrary files on a connected peer device.

The Impact of CVE-2020-3550

The vulnerability has a CVSS base score of 8.1, indicating a high severity level with confidentiality and integrity impacts.

Technical Details of CVE-2020-3550

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability in the sfmgr daemon allows attackers to access directories beyond the intended path by using specific sfmgr commands.

Affected Systems and Versions

Product: Cisco Firepower Management Center
Vendor: Cisco
Versions affected: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by leveraging a relative path in sfmgr commands to access unauthorized directories.

Mitigation and Prevention

Protecting systems from CVE-2020-3550 requires immediate actions and long-term security practices.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly.
Monitor network traffic for any signs of exploitation.
Restrict access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network segmentation to limit the impact of potential breaches.

Patching and Updates

Regularly check for security advisories from Cisco and apply patches as soon as they are available.