CVE-2018-11778: Apache Ranger UnixAuthenticationService Stack-based Buffer Overflow
Summary
CVE-2018-11778: UnixAuthenticationService in Apache Ranger 1.2.0 was updated to correctly handle user input to avoid Stack-based buffer overflow. Affects org.apache.ranger:ranger versions < 1.2.0. Fixed in 1.2.0. 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 a UnixAuthenticationService module responsible for handling user authentication. The vulnerability identified as CVE-2018-11778 affects Apache Ranger versions prior to 1.2.0. This vulnerability allows an attacker to trigger a stack-based buffer overflow by providing malicious input to the UnixAuthenticationService. This can lead to arbitrary code execution and potential compromise of the system.
Vulnerability Detail
The UnixAuthenticationService in Apache Ranger 1.2.0 and earlier versions fails to properly handle user input, resulting in a stack-based buffer overflow vulnerability. An attacker can exploit this vulnerability by providing specially crafted input to the service, which can lead to arbitrary code execution. The impact of this vulnerability is severe, as it allows an attacker to gain unauthorized access to the system and potentially perform malicious activities. The vulnerability has a CVSS score of 8.8, indicating a high severity level.
How To Fix
Minimum fixed version
1.2.0
This is the first release that contains the fix.
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Conclusion
The Apache Ranger UnixAuthenticationService vulnerability (CVE-2018-11778) poses a significant risk to systems running affected versions of Apache Ranger. It is crucial to upgrade to version 1.2.0 or later to mitigate the stack-based buffer overflow and ensure the security of the system. 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 an attacker to trigger a stack-based buffer overflow, potentially leading to arbitrary code execution and compromise of the system.
Versions prior to 1.2.0 of Apache Ranger are affected by this vulnerability.
The CVSS score of this vulnerability is 8.8, indicating a high severity level.
To fix this vulnerability, upgrade Apache Ranger to version 1.2.0 or later.
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