CVE-2016-0733: Apache Ranger Admin UI Authentication Bypass
Summary
CVE-2016-0733: The Admin UI in Apache Ranger before 0.5.1 does not properly handle authentication requests that lack a password, which allows remote attackers to bypass authentication by leveraging knowledge of a valid username. Affects org.apache.ranger:ranger versions < 0.5.1. Fixed in 0.5.1. How to fix ↓
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Background
Apache Ranger is an open-source security framework that provides centralized authorization and access control for Hadoop ecosystem components. It includes an Admin UI that allows administrators to manage policies and permissions. This vulnerability affects Apache Ranger versions prior to 0.5.1. The Admin UI does not properly handle authentication requests that lack a password, enabling remote attackers to bypass authentication by exploiting knowledge of a valid username.
Vulnerability Detail
The vulnerability in Apache Ranger Admin UI allows an attacker to bypass authentication by submitting an authentication request without a password. This can be achieved by leveraging knowledge of a valid username. By exploiting this vulnerability, an attacker can gain unauthorized access to the Admin UI and perform administrative actions, potentially compromising the security of the entire Apache Ranger installation. The vulnerability has a CVSS score of 9.8, indicating its critical severity.
How To Fix
Minimum fixed version
0.5.1
This is the first release that contains the fix.
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Workaround
There is no known workaround for this vulnerability. It is essential to apply the recommended fix by upgrading Apache Ranger to version 0.5.1 or later.
Conclusion
The Apache Ranger Admin UI Authentication Bypass vulnerability in versions prior to 0.5.1 can allow remote attackers to bypass authentication and gain unauthorized access to the system. It is crucial to upgrade Apache Ranger to version 0.5.1 or later to fix this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
Apache Ranger is an open-source security framework that provides centralized authorization and access control for Hadoop ecosystem components.
The vulnerability allows remote attackers to bypass authentication in Apache Ranger Admin UI, potentially gaining unauthorized access to the system and compromising its security.
To fix this vulnerability, upgrade Apache Ranger to version 0.5.1 or later following the provided upgrade instructions.
No, there is no known workaround. It is crucial to apply the recommended fix by upgrading Apache Ranger.
The CVSS score of this vulnerability is 9.8, indicating its critical severity.
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