CVE-2019-13421 Explained : Impact and Mitigation
Discover the impact of CVE-2019-13421 on Search Guard versions before 23.1. Learn about the vulnerability allowing unauthorized access to bcrypt password hashes and how to mitigate the risk.
Search Guard versions before 23.1 had a vulnerability that allowed an administrative user to access bcrypt password hashes of other users in the internal user database.
Understanding CVE-2019-13421
Search Guard, developed by floragunn, was susceptible to a security flaw that could compromise user password hashes.
What is CVE-2019-13421?
This CVE refers to a vulnerability in Search Guard versions prior to 23.1, enabling an administrative user to retrieve bcrypt password hashes of other users configured in the internal user database.
The Impact of CVE-2019-13421
The vulnerability could lead to unauthorized access to sensitive user password information, potentially resulting in unauthorized account access and data breaches.
Technical Details of CVE-2019-13421
Search Guard's security vulnerability is detailed below:
Vulnerability Description
An issue in versions before 23.1 allowed administrative users to obtain bcrypt password hashes of other users in the internal user database.
Affected Systems and Versions
- Product: Search Guard
- Vendor: floragunn
- Versions Affected: < 23.1
- Version Type: Custom
Exploitation Mechanism
The vulnerability could be exploited by an administrative user to access and retrieve bcrypt password hashes of other users, compromising their account security.
Mitigation and Prevention
Protect your systems from CVE-2019-13421 with the following measures:
Immediate Steps to Take
- Upgrade to version 23.1 or newer to mitigate the vulnerability.
- Monitor user accounts for any unauthorized access or suspicious activities.
- Implement strong password policies and encourage users to use unique and complex passwords.
Long-Term Security Practices
- Regularly update and patch software to address security vulnerabilities promptly.
- Conduct security audits and penetration testing to identify and address potential weaknesses.
Patching and Updates
- Stay informed about security advisories and updates from Search Guard.
- Apply patches and updates as soon as they are released to ensure the security of your systems.