CVE-2018-1102 : Vulnerability Insights and Analysis

A vulnerability was discovered in the source-to-image feature included in Openshift Enterprise 3.x, leading to privilege escalation.

Understanding CVE-2018-1102

What is CVE-2018-1102?

CVE-2018-1102 is a vulnerability found in the ExtractTarStreamFromTarReader function in tar/tar.go in Openshift Enterprise 3.x due to improper validation of file paths.

The Impact of CVE-2018-1102

This vulnerability could allow an attacker to escalate privileges on affected systems, potentially leading to unauthorized access and control.

Technical Details of CVE-2018-1102

Vulnerability Description

The vulnerability stems from improper file path validation in the ExtractTarStreamFromTarReader function in tar/tar.go.

Affected Systems and Versions

Product: atomic-openshift
Vendor: Red Hat, Inc.
Versions: as shipped with Openshift Enterprise 3.x

Exploitation Mechanism

The issue arises from improper validation of file paths, which can be exploited by an attacker to escalate privileges.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary security patches provided by Red Hat.
Monitor for any unauthorized access or unusual activities on the system.

Long-Term Security Practices

Regularly update and patch software to prevent vulnerabilities.
Implement the principle of least privilege to limit access rights for users and processes.
Conduct regular security assessments and audits to identify and address potential risks.

Patching and Updates

Ensure that the affected systems are updated with the latest patches and security fixes to mitigate the CVE-2018-1102 vulnerability.