CVE-2018-1268 : Security Advisory and Response

Cloud Foundry Loggregator, versions 89.x prior to 89.5 or 96.x prior to 96.1 or 99.x prior to 99.1 or 101.x prior to 101.9 or 102.x prior to 102.2, does not validate app GUID structure in requests. A remote authenticated malicious user knowing the GUID of an app may construct malicious requests to read from or write to the logs of that app.

Understanding CVE-2018-1268

There is a vulnerability in certain versions of Cloud Foundry Loggregator where the app GUID structure in requests is not properly validated, potentially allowing malicious users to manipulate requests.

What is CVE-2018-1268?

Vulnerability in Cloud Foundry Loggregator versions 89.x, 96.x, 99.x, 101.x, and 102.x
Lack of validation for app GUID structure in requests
Malicious users can read from or write to the logs of the target app

The Impact of CVE-2018-1268

Malicious users can exploit the vulnerability to access sensitive information or tamper with log data
Potential for unauthorized access to application logs

Technical Details of CVE-2018-1268

Cloud Foundry Loggregator vulnerability details

Vulnerability Description

Vulnerability in app GUID structure validation
Allows authenticated malicious users to manipulate requests

Affected Systems and Versions

Cloud Foundry Loggregator versions 89.x, 96.x, 99.x, 101.x, and 102.x
Versions prior to 89.5, 96.1, 99.1, 101.9, and 102.2 respectively

Exploitation Mechanism

Malicious users need to be authenticated and aware of the app GUID
Construct harmful requests to read from or write to target app logs

Mitigation and Prevention

Steps to address and prevent CVE-2018-1268

Immediate Steps to Take

Update Cloud Foundry Loggregator to versions 89.5, 96.1, 99.1, 101.9, or 102.2
Monitor and restrict access to app GUIDs

Long-Term Security Practices

Regularly review and update access controls
Conduct security training to prevent unauthorized access

Patching and Updates

Apply security patches promptly
Stay informed about security advisories and updates