CVE-2019-6520 : What You Need to Know
Learn about CVE-2019-6520 affecting Moxa IKS and EDS, allowing unauthorized configuration changes by read-only users. Find mitigation steps and patching recommendations here.
Moxa IKS and EDS have a vulnerability that allows a read-only user to make unauthorized configuration changes.
Understanding CVE-2019-6520
The server-side authority check in Moxa IKS and EDS is not functioning correctly, enabling unauthorized configuration modifications by read-only users.
What is CVE-2019-6520?
The vulnerability in Moxa IKS and EDS allows read-only users to perform arbitrary configuration changes due to improper server-side authority checks.
The Impact of CVE-2019-6520
This vulnerability could lead to unauthorized modifications in the system configuration, potentially compromising the integrity and security of the affected devices.
Technical Details of CVE-2019-6520
Moxa IKS and EDS are affected by a vulnerability that allows unauthorized configuration changes by read-only users.
Vulnerability Description
The server-side authority check in Moxa IKS and EDS is inadequate, enabling read-only users to make unauthorized configuration modifications.
Affected Systems and Versions
- Products: Moxa IKS, EDS
- Vendor: ICS-CERT
- Versions Affected: IKS-G6824A series Versions 4.5 and prior, EDS-405A series Version 3.8 and prior, EDS-408A series Version 3.8 and prior, EDS-510A series Version 3.8 and prior
Exploitation Mechanism
Unauthorized users with read-only access can exploit this vulnerability to make arbitrary configuration changes, potentially compromising the system's security.
Mitigation and Prevention
Immediate action and long-term security practices are essential to mitigate the risks associated with CVE-2019-6520.
Immediate Steps to Take
- Implement access controls to restrict unauthorized configuration changes.
- Monitor system logs for any suspicious activities.
- Apply vendor-supplied patches or updates promptly.
Long-Term Security Practices
- Regularly review and update access control policies.
- Conduct security training for system administrators to enhance awareness of potential vulnerabilities.
Patching and Updates
- Apply patches provided by the vendor to address the vulnerability and enhance system security.