CVE-2019-19879 : Exploit Details and Defense Strategies
Learn about CVE-2019-19879, a vulnerability in HashiCorp Sentinel up to version 0.10.1, impacting policy expression parsing. Find out the impact, affected systems, and mitigation steps.
HashiCorp Sentinel up to version 0.10.1 incorrectly parsed negation in certain policy expressions, impacting security. Learn about the vulnerability, its impact, and mitigation steps.
Understanding CVE-2019-19879
HashiCorp Sentinel vulnerability affecting versions up to 0.10.1, resolved in 0.10.2.
What is CVE-2019-19879?
The parsing of negation in specific policy expressions was inaccurately handled by HashiCorp Sentinel up to version 0.10.1.
The Impact of CVE-2019-19879
This vulnerability could potentially lead to misinterpretation of policy expressions, impacting the security and integrity of the system.
Technical Details of CVE-2019-19879
HashiCorp Sentinel vulnerability details and affected systems.
Vulnerability Description
The issue in HashiCorp Sentinel up to 0.10.1 incorrectly parsing negation in certain policy expressions, fixed in version 0.10.2.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions: Up to 0.10.1
Exploitation Mechanism
The vulnerability could be exploited by crafting specific policy expressions to trigger the incorrect parsing behavior.
Mitigation and Prevention
Steps to address and prevent the CVE-2019-19879 vulnerability.
Immediate Steps to Take
- Update HashiCorp Sentinel to version 0.10.2 or later to mitigate the vulnerability.
- Review and adjust policy expressions to ensure correct parsing of negation.
Long-Term Security Practices
- Regularly update and patch HashiCorp Sentinel to address any security vulnerabilities.
- Conduct thorough testing of policy expressions to identify and rectify parsing issues.
Patching and Updates
Ensure timely installation of patches and updates provided by HashiCorp to maintain the security of the system.