CVE-2018-7848 : Security Advisory and Response
Learn about CVE-2018-7848 affecting Modicon M580, M340, Quantum, and Premium systems, leading to SNMP information exposure during file reading. Find mitigation steps and prevention measures.
A vulnerability named CWE-200: Information Exposure affects Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium systems, potentially leading to the unintentional disclosure of SNMP information.
Understanding CVE-2018-7848
This CVE identifies a security flaw in various Schneider Electric Modicon systems that could expose SNMP information during file reading over Modbus.
What is CVE-2018-7848?
The vulnerability in Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium systems can result in the inadvertent disclosure of SNMP data when files are read from the controller over Modbus.
The Impact of CVE-2018-7848
The exposure of SNMP information can lead to security risks, including unauthorized access to sensitive data and potential exploitation by malicious actors.
Technical Details of CVE-2018-7848
This section provides specific technical details regarding the vulnerability.
Vulnerability Description
The vulnerability, categorized as CWE-200: Information Exposure, affects all versions of Modicon M580, Modicon M340, Modicon Quantum, and Modicon Premium systems, allowing for the disclosure of SNMP information.
Affected Systems and Versions
- Affected Products: Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium
- Vulnerable Versions: Modicon M580, Modicon M340, Modicon Quantum, Modicon Premium
Exploitation Mechanism
The vulnerability is exploited when file reading operations are conducted from the controller over Modbus, potentially leading to the exposure of SNMP data.
Mitigation and Prevention
Protecting systems from CVE-2018-7848 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Implement access controls to restrict unauthorized file reading operations
- Monitor SNMP information disclosure activities
- Apply network segmentation to isolate critical systems
Long-Term Security Practices
- Conduct regular security assessments and audits
- Keep systems and software up to date with the latest patches
- Educate personnel on secure file handling practices
Patching and Updates
- Schneider Electric may release patches or updates to address the vulnerability
- Stay informed about security advisories and apply relevant patches promptly