CVE-2022-20748 : Security Advisory and Response

A vulnerability in the local malware analysis process of Cisco Firepower Threat Defense (FTD) Software has been identified, potentially allowing an unauthenticated remote attacker to cause a denial of service (DoS) condition on the affected device.

Understanding CVE-2022-20748

This vulnerability, assigned CVE-2022-20748, poses a risk to devices running Cisco Firepower Threat Defense Software, potentially leading to a DoS condition due to insufficient error handling in the local malware analysis process.

What is CVE-2022-20748?

The vulnerability in Cisco Firepower Threat Defense Software allows an attacker to crash the local malware analysis process by sending a specifically crafted file, resulting in a DoS condition. Manual intervention may be necessary to recover, while malware cloud lookup and dynamic analysis remain unaffected.

The Impact of CVE-2022-20748

With a CVSS base score of 5.3 and a MEDIUM severity rating, this vulnerability could be exploited remotely without requiring privileges. It could lead to a DoS condition without impacting confidentiality or integrity, although affecting availability.

Technical Details of CVE-2022-20748

Find below the technical details associated with CVE-2022-20748:

Vulnerability Description

The vulnerability in the local malware analysis process of Cisco Firepower Threat Defense Software can be exploited by an unauthenticated remote attacker to crash the process, leading to a DoS condition.

Affected Systems and Versions

Cisco Firepower Threat Defense Software versions are affected by this vulnerability.

Exploitation Mechanism

Exploitation of this vulnerability involves sending a specially crafted file through the device to trigger a crash in the local malware analysis process.

Mitigation and Prevention

To address CVE-2022-20748, consider the following mitigation strategies:

Immediate Steps to Take

Implement relevant patches or updates provided by Cisco to remediate the vulnerability and prevent exploitation.

Long-Term Security Practices

Institute secure coding practices, regular security assessments, and network segmentation to enhance overall security posture.

Patching and Updates

Stay informed about security advisories and promptly apply patches and updates to mitigate potential risks.