CVE-2018-7810 : What You Need to Know
Learn about CVE-2018-7810, an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Schneider Electric's Modicon M340, Premium, Quantum PLCs, and BMXNOR0200, allowing attackers to execute malicious JavaScript code.
A vulnerability known as "Cross-site Scripting" has been identified in the embedded web servers of Modicon M340, Premium, Quantum PLCs, and BMXNOR0200 by Schneider Electric SE.
Understanding CVE-2018-7810
This CVE involves a Cross-site Scripting vulnerability in Schneider Electric's embedded web servers, potentially allowing attackers to execute malicious JavaScript code on a user's browser.
What is CVE-2018-7810?
CVE-2018-7810 is an Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability affecting various Schneider Electric PLCs.
The Impact of CVE-2018-7810
The vulnerability enables attackers to create URLs containing JavaScript that can run on a user's browser, potentially compromising the device running the browser.
Technical Details of CVE-2018-7810
This section provides detailed technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows attackers to inject and execute malicious JavaScript code through crafted URLs on the affected embedded web servers.
Affected Systems and Versions
- Embedded Web Servers in all Modicon M340
- Premium, Quantum PLCs
- BMXNOR0200
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting URLs with JavaScript code, which, when executed on a user's browser, can impact the device's security.
Mitigation and Prevention
Protecting systems from CVE-2018-7810 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by Schneider Electric.
- Monitor network traffic for any suspicious activities.
- Educate users about the risks of clicking on unknown URLs.
Long-Term Security Practices
- Regularly update and patch all PLCs and related systems.
- Implement network segmentation to limit the impact of potential attacks.
- Conduct regular security audits and assessments.
Patching and Updates
Schneider Electric has released patches to address the CVE-2018-7810 vulnerability. Ensure all affected systems are updated with the latest security fixes.