CVE-2018-11141 Explained : Impact and Mitigation

The '/adminui/advisory.php' script in the Quest KACE System Management Virtual Appliance 8.0.318 allows unauthorized users to perform directory traversal and manipulate files.

Understanding CVE-2018-11141

This CVE involves potential abuse in specific parameters of the mentioned script, leading to unauthorized file manipulation.

What is CVE-2018-11141?

The vulnerability in the 'IMAGES_JSON' and 'attachments_to_remove[]' parameters of the script enables unauthorized users to write and delete files through directory traversal.

The Impact of CVE-2018-11141

Unauthorized users can manipulate files within locations where the 'www' user has write permissions.

Technical Details of CVE-2018-11141

The following technical details provide insight into the vulnerability.

Vulnerability Description

The 'IMAGES_JSON' and 'attachments_to_remove[]' parameters allow for file writing and deletion, respectively, via directory traversal.

Affected Systems and Versions

Product: Quest KACE System Management Virtual Appliance 8.0.318
Vendor: Quest
Versions: All versions are affected.

Exploitation Mechanism

The vulnerability can be exploited by manipulating the 'IMAGES_JSON' and 'attachments_to_remove[]' parameters to perform unauthorized file operations.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risks associated with CVE-2018-11141.

Immediate Steps to Take

Restrict access to the vulnerable script and parameters.
Monitor file operations and user permissions closely.

Long-Term Security Practices

Regularly update and patch the system to prevent exploitation of known vulnerabilities.
Conduct security audits to identify and address potential weaknesses.
Educate users on secure file management practices.
Implement least privilege access controls.

Patching and Updates

Apply patches provided by the vendor to address the vulnerability and enhance system security.