CVE-2019-1696 Explained : Impact and Mitigation

Cisco Firepower Threat Defense Software SMB Protocol Preprocessor Detection Engine Denial of Service Vulnerabilities

Understanding CVE-2019-1696

This CVE involves weaknesses in the detection engine for Cisco Firepower Threat Defense Software, leading to denial of service attacks.

What is CVE-2019-1696?

The vulnerability in the Server Message Block (SMB) Protocol preprocessor detection engine of Cisco Firepower Threat Defense Software allows unauthenticated attackers to trigger denial of service situations.

The Impact of CVE-2019-1696

Exploiting this vulnerability can result in a denial of service (DoS) condition, affecting the availability of the system.

Technical Details of CVE-2019-1696

This section provides in-depth technical details of the CVE.

Vulnerability Description

Weaknesses in the detection engine for Cisco Firepower Threat Defense Software
Allows unauthenticated attackers to exploit the SMB Protocol preprocessor

Affected Systems and Versions

Product: Cisco Firepower Threat Defense Software
Vendor: Cisco
Versions Affected: < 6.2.3.12 (unspecified version type)

Exploitation Mechanism

Attack Complexity: Low
Attack Vector: Network
Availability Impact: High
Base Score: 7.5 (High)
No privileges required for exploitation

Mitigation and Prevention

Guidelines to mitigate and prevent exploitation of CVE-2019-1696.

Immediate Steps to Take

Apply vendor-provided patches or updates promptly
Monitor network traffic for any suspicious activity
Implement firewall rules to restrict SMB Protocol access

Long-Term Security Practices

Regularly update and patch software and systems
Conduct security assessments and penetration testing
Educate users on security best practices

Patching and Updates

Check vendor advisories for patches and updates
Apply security patches as soon as they are released
Regularly check for new vulnerabilities and updates from the vendor