CVE-2019-9744 : Exploit Details and Defense Strategies

A vulnerability has been identified in PHOENIX CONTACT FL NAT SMCS 8TX, FL NAT SMN 8TX, FL NAT SMN 8TX-M, and FL NAT SMN 8TX-M-DMG devices that allows attackers to gain unauthorized access to the WEB-UI using the same source IP address as an authenticated user.

Understanding CVE-2019-9744

This CVE entry describes a security issue in specific PHOENIX CONTACT devices that could lead to unauthorized access to the WEB-UI.

What is CVE-2019-9744?

The vulnerability in PHOENIX CONTACT devices enables attackers to access the WEB-UI using the IP address of an authenticated user, which serves as a session identifier.

The Impact of CVE-2019-9744

The exploitation of this vulnerability can result in unauthorized access to sensitive information and functionalities within the affected devices.

Technical Details of CVE-2019-9744

This section provides more technical insights into the vulnerability.

Vulnerability Description

The flaw allows attackers to use the same source IP address as an authenticated user to access the WEB-UI, bypassing authentication mechanisms.

Affected Systems and Versions

PHOENIX CONTACT FL NAT SMCS 8TX
PHOENIX CONTACT FL NAT SMN 8TX
PHOENIX CONTACT FL NAT SMN 8TX-M
PHOENIX CONTACT FL NAT SMN 8TX-M-DMG

Exploitation Mechanism

Attackers exploit the vulnerability by utilizing the IP address of an authenticated user to gain unauthorized access to the WEB-UI.

Mitigation and Prevention

Protecting systems from this vulnerability requires specific actions and security measures.

Immediate Steps to Take

Implement network segmentation to restrict access to critical systems.
Monitor and analyze network traffic for any suspicious activities.
Apply access controls to limit unauthorized access to the WEB-UI.

Long-Term Security Practices

Regularly update firmware and software to patch known vulnerabilities.
Conduct security assessments and penetration testing to identify and address weaknesses.
Educate users on secure practices to prevent unauthorized access.

Patching and Updates

Ensure that the affected PHOENIX CONTACT devices are updated with the latest firmware patches to mitigate the vulnerability.