CVE-2019-5080 : What You Need to Know
Learn about CVE-2019-5080, a vulnerability in WAGO PFC 200 and PFC100 firmware versions that can lead to denial-of-service attacks. Find mitigation steps and prevention measures here.
A vulnerability in the iocheckd service "I/O-Check" functionality of WAGO PFC 200 and WAGO PFC100 firmware versions can lead to denial-of-service attacks.
Understanding CVE-2019-5080
This CVE identifies a vulnerability in specific firmware versions of WAGO PFC200 and WAGO PFC100 that can be exploited for denial-of-service attacks.
What is CVE-2019-5080?
This CVE pertains to a weakness in the iocheckd service of WAGO PFC 200 Firmware versions 03.01.07(13) and 03.00.39(12), as well as WAGO PFC100 Firmware version 03.00.39(12). The vulnerability allows attackers to trigger denial-of-service by sending a single unauthenticated packet.
The Impact of CVE-2019-5080
The vulnerability can result in denial-of-service attacks, weakening of credentials, and the application of default documented credentials to the affected devices. Attackers can exploit this flaw by sending a specific packet.
Technical Details of CVE-2019-5080
This section provides detailed technical information about the vulnerability.
Vulnerability Description
The vulnerability lies in the iocheckd service of WAGO PFC 200 and WAGO PFC100 firmware versions, enabling attackers to execute denial-of-service attacks.
Affected Systems and Versions
- WAGO PFC200 Firmware version 03.01.07(13)
- WAGO PFC200 Firmware version 03.00.39(12)
- WAGO PFC100 Firmware version 03.00.39(12)
Exploitation Mechanism
Attackers can exploit this vulnerability by sending a single unauthenticated packet, triggering denial-of-service and compromising device credentials.
Mitigation and Prevention
Protecting systems from CVE-2019-5080 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply vendor-supplied patches promptly
- Implement network segmentation to limit exposure
- Monitor network traffic for suspicious activities
Long-Term Security Practices
- Regularly update firmware and software
- Conduct security assessments and penetration testing
- Educate users on cybersecurity best practices
Patching and Updates
- Install the latest firmware updates provided by WAGO
- Follow vendor recommendations for securing devices