CVE-2017-5646 Explained : Impact and Mitigation

Apache Knox versions 0.2.0 to 0.11.0 have a security vulnerability allowing authenticated users to exploit a manipulated URL to impersonate others when accessing WebHDFS through Apache Knox, leading to unauthorized data access and escalated privileges. Upgrading to Apache Knox 0.12.0 is strongly recommended.

Understanding CVE-2017-5646

Users of Apache Knox versions 0.2.0 to 0.11.0 should be aware of a security vulnerability that allows authenticated users to impersonate others when accessing WebHDFS through Apache Knox.

What is CVE-2017-5646?

An authenticated user can exploit a manipulated URL to assume the identity of another user when accessing WebHDFS through Apache Knox.
This could result in unauthorized access to data and privileges.

The Impact of CVE-2017-5646

Escalated privileges and unauthorized data access are possible due to this vulnerability.
The activity is logged and traceable back to the authenticated user, but it remains a significant security concern.

Technical Details of CVE-2017-5646

Apache Knox versions 0.2.0 to 0.11.0 are affected by this vulnerability.

Vulnerability Description

Authenticated users can exploit a manipulated URL to impersonate others when accessing WebHDFS through Apache Knox.

Affected Systems and Versions

Product: Apache Knox
Vendor: Apache Software Foundation
Versions: 0.2.0 to 0.11.0

Exploitation Mechanism

An authenticated user uses a specially crafted URL to impersonate another user while accessing WebHDFS through Apache Knox.

Mitigation and Prevention

It is crucial to take immediate steps and implement long-term security practices to address CVE-2017-5646.

Immediate Steps to Take

Upgrade to the latest release, Apache Knox 0.12.0, to mitigate this security issue.

Long-Term Security Practices

Regularly update software and apply security patches to prevent vulnerabilities.

Patching and Updates

Ensure all systems are updated with the latest security patches to protect against CVE-2017-5646.