CVE-2018-12111 Explained : Impact and Mitigation

Remote attackers can exploit a vulnerability in the Canon PrintMe EFI web interface, known as Cross-Site Scripting (XSS), to inject their own web scripts or HTML by manipulating the PATH_INFO parameter in the /wt3/mydocs.php URI.

Understanding CVE-2018-12111

This CVE entry describes a Cross-Site Scripting (XSS) vulnerability in the Canon PrintMe EFI web interface.

What is CVE-2018-12111?

CVE-2018-12111 is a security vulnerability that allows remote attackers to inject malicious web scripts or HTML into the Canon PrintMe EFI web interface.

The Impact of CVE-2018-12111

Remote attackers can exploit this vulnerability to execute arbitrary code on the targeted system.
This can lead to unauthorized access, data theft, and potential system compromise.

Technical Details of CVE-2018-12111

This section provides more technical insights into the CVE-2018-12111 vulnerability.

Vulnerability Description

The vulnerability in the Canon PrintMe EFI web interface enables attackers to perform Cross-Site Scripting (XSS) attacks by manipulating the PATH_INFO parameter in the /wt3/mydocs.php URI.

Affected Systems and Versions

Product: Not applicable
Vendor: Not applicable
Versions: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by injecting malicious web scripts or HTML code through the PATH_INFO parameter in the /wt3/mydocs.php URI.

Mitigation and Prevention

To mitigate the risks associated with CVE-2018-12111, consider the following steps:

Immediate Steps to Take

Disable the Canon PrintMe EFI web interface if not essential for operations.
Implement input validation mechanisms to sanitize user inputs and prevent XSS attacks.
Regularly monitor and update security patches for the affected system.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and address vulnerabilities.
Educate users and administrators about safe browsing practices and the risks of XSS attacks.

Patching and Updates

Apply security patches provided by Canon to address the CVE-2018-12111 vulnerability.