CVE-2019-10147 : Vulnerability Insights and Analysis

Processes in containers executed with

rkt enter

on versions of rkt up to 1.30.0 are not adequately isolated, potentially allowing compromised containers to gain unauthorized access to host resources.

Understanding CVE-2019-10147

Processes in containers executed with

rkt enter

on versions of rkt up to 1.30.0 are not adequately isolated, posing a security risk.

What is CVE-2019-10147?

This CVE highlights a vulnerability in rkt versions up to 1.30.0, where processes executed using

rkt enter

lack proper isolation within stage 2, potentially enabling unauthorized access to host resources.

The Impact of CVE-2019-10147

CVSS Score: 4.7 (Medium)
Attack Vector: Local
Attack Complexity: High
Privileges Required: None
User Interaction: Required
Availability Impact: High
This vulnerability could allow compromised containers to access host resources, impacting system availability.

Technical Details of CVE-2019-10147

Processes executed with

rkt enter

lack proper isolation, potentially leading to unauthorized access to host resources.

Vulnerability Description

The vulnerability arises from inadequate isolation of processes executed using

rkt enter

in rkt versions up to 1.30.0, allowing compromised containers to access host resources.

Affected Systems and Versions

Affected Product: rkt
Vendor: [UNKNOWN]
Affected Version: 1.30.0

Exploitation Mechanism

Compromised containers can exploit this vulnerability to gain unauthorized access to host resources by bypassing cgroup limitations within stage 2.

Mitigation and Prevention

Immediate action and long-term security practices are crucial to mitigate the risks associated with CVE-2019-10147.

Immediate Steps to Take

Upgrade rkt to a patched version that addresses the vulnerability.
Avoid executing processes with

rkt enter

in untrusted environments.

Long-Term Security Practices

Implement container security best practices to enhance isolation.
Regularly monitor and audit containerized applications for unusual behavior.

Patching and Updates

Apply patches provided by the vendor to fix the vulnerability and enhance container security.