CVE-2018-7812 : Vulnerability Insights and Analysis
Discover the impact of CVE-2018-7812, an Information Exposure through Discrepancy vulnerability in Modicon M340, Premium, Quantum PLCs, and BMXNOR0200 devices by Schneider Electric SE. Learn about mitigation steps and security practices.
A security flaw named Information Exposure through Discrepancy has been discovered in the embedded web servers of Modicon M340, Premium, Quantum PLCs, and BMXNOR0200 devices, manufactured by Schneider Electric SE.
Understanding CVE-2018-7812
This CVE-2018-7812 vulnerability allows the web servers to inadvertently disclose security-sensitive information regarding the product's current status, indicating the success or failure of specific operations.
What is CVE-2018-7812?
CVE-2018-7812 is an Information Exposure through Discrepancy vulnerability found in the built-in web servers of certain Schneider Electric devices, potentially leaking critical security data.
The Impact of CVE-2018-7812
The vulnerability could lead to unauthorized access to sensitive information, compromising the security and confidentiality of the affected systems.
Technical Details of CVE-2018-7812
The following technical aspects provide a deeper insight into the CVE-2018-7812 vulnerability.
Vulnerability Description
The flaw in the embedded web servers of Modicon M340, Premium, Quantum PLCs, and BMXNOR0200 devices allows the servers to send different responses, inadvertently exposing security-relevant information about the product's state.
Affected Systems and Versions
- Embedded Web Servers in all Modicon M340, Premium, Quantum PLCs, and BMXNOR0200
Exploitation Mechanism
The vulnerability can be exploited by malicious actors to gain insights into the operational status of the affected devices, potentially leading to unauthorized access.
Mitigation and Prevention
Protecting systems from CVE-2018-7812 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Implement security patches provided by Schneider Electric SE
- Monitor network traffic for any suspicious activity
- Restrict access to the affected devices
Long-Term Security Practices
- Regularly update and patch all devices and software
- Conduct security audits and assessments periodically
- Educate employees on cybersecurity best practices
Patching and Updates
Schneider Electric SE has released patches to address the CVE-2018-7812 vulnerability. It is crucial to apply these patches promptly to mitigate the risk of exploitation.