CVE-2017-7676 Explained : Impact and Mitigation
Learn about CVE-2017-7676 affecting Apache Ranger versions 0.5.x, 0.6.x, and 0.7.0. Understand the impact, exploitation mechanism, and mitigation steps for this vulnerability.
Apache Ranger's policy resource matcher prior to version 0.7.1 fails to consider characters that appear after the '*' symbol, potentially leading to unintended side effects.
Understanding CVE-2017-7676
Apache Ranger vulnerability impacting versions 0.5.x, 0.6.x, and 0.7.0.
What is CVE-2017-7676?
The vulnerability in Apache Ranger allows characters after the '*' symbol to be ignored, causing potential security risks.
The Impact of CVE-2017-7676
This oversight can result in unintended side effects and compromise the security of the system.
Technical Details of CVE-2017-7676
Apache Ranger vulnerability details.
Vulnerability Description
The policy resource matcher in Apache Ranger versions before 0.7.1 fails to account for characters after the '*' wildcard character.
Affected Systems and Versions
- Product: Apache Ranger
- Vendor: Apache Software Foundation
- Affected Versions: 0.5.x, 0.6.x, 0.7.0
Exploitation Mechanism
The vulnerability can be exploited by crafting policy resource names with characters following the '*' symbol.
Mitigation and Prevention
Steps to address and prevent CVE-2017-7676.
Immediate Steps to Take
- Upgrade Apache Ranger to version 0.7.1 or later to mitigate the vulnerability.
- Monitor and review policy resource names for any unusual characters.
Long-Term Security Practices
- Regularly update and patch Apache Ranger to the latest versions.
- Conduct security audits to identify and address any policy resource vulnerabilities.
Patching and Updates
Apply patches and updates provided by Apache Software Foundation to address CVE-2017-7676.