CVE-2018-11116 Explained : Impact and Mitigation

OpenWrt's mismanagement of access control in /etc/config/rpcd and /usr/share/rpcd/acl.d files allows remote authenticated users to call any method, potentially leading to Information Disclosure or Code Execution.

Understanding CVE-2018-11116

This CVE involves a disputed vulnerability in OpenWrt related to access control mismanagement.

What is CVE-2018-11116?

OpenWrt mishandles access control in /etc/config/rpcd and /usr/share/rpcd/acl.d files
Remote authenticated users can call any method, gaining ubus access over HTTP
This can lead to remote Information Disclosure or Code Execution
The developer disputes this as a vulnerability

The Impact of CVE-2018-11116

Remote authenticated users can access restricted methods
Potential for Information Disclosure or Code Execution

Technical Details of CVE-2018-11116

This section provides technical insights into the vulnerability.

Vulnerability Description

Mismanagement of access control in OpenWrt's /etc/config/rpcd and /usr/share/rpcd/acl.d files
Allows remote authenticated users to call any method
Developer disputes this as a vulnerability

Affected Systems and Versions

Product: n/a
Vendor: n/a
Versions: n/a

Exploitation Mechanism

Remote authenticated users exploit mismanagement to gain ubus access over HTTP
Can lead to Information Disclosure or Code Execution

Mitigation and Prevention

Protecting systems from CVE-2018-11116 is crucial.

Immediate Steps to Take

Monitor and restrict access to sensitive methods
Regularly review and update access control configurations

Long-Term Security Practices

Implement least privilege access control policies
Conduct regular security audits and assessments

Patching and Updates

Stay informed about OpenWrt security advisories
Apply patches and updates promptly to address vulnerabilities