CVE-2017-7575 : What You Need to Know
Discover how CVE-2017-7575 impacts Schneider Electric Modicon TM221CE16R 1.3.3.3 devices, allowing attackers to uncover application-protection passwords and gain unauthorized access.
A vulnerability in Schneider Electric Modicon TM221CE16R 1.3.3.3 devices allows remote attackers to discover application-protection passwords, potentially leading to unauthorized access and file manipulation.
Understanding CVE-2017-7575
What is CVE-2017-7575?
The CVE-2017-7575 vulnerability affects Modicon TM221CE16R 1.3.3.3 devices manufactured by Schneider Electric, enabling attackers to uncover passwords and gain unauthorized access to applications.
The Impact of CVE-2017-7575
The vulnerability allows attackers to discover application-protection passwords, potentially leading to unauthorized access, file downloads, modifications, and uploads.
Technical Details of CVE-2017-7575
Vulnerability Description
By sending a specific request to the Modbus port (502/tcp) of the affected devices, attackers can reveal the password used for application-protection.
Affected Systems and Versions
- Product: Modicon TM221CE16R 1.3.3.3
- Vendor: Schneider Electric
- Version: 1.3.3.3
Exploitation Mechanism
Attackers exploit the vulnerability by sending a crafted request to the Modbus port, allowing them to discover the application-protection password.
Mitigation and Prevention
Immediate Steps to Take
- Implement network segmentation to restrict access to critical systems.
- Monitor network traffic for any suspicious activity on port 502/tcp.
- Change default passwords and employ strong, unique passwords.
Long-Term Security Practices
- Regularly update firmware and security patches for the affected devices.
- Conduct security assessments and penetration testing to identify and address vulnerabilities.
Patching and Updates
- Apply patches provided by Schneider Electric to address the CVE-2017-7575 vulnerability.