CVE-2019-8400 : What You Need to Know
Learn about CVE-2019-8400, a reflected cross-site scripting (XSS) vulnerability in ORY Hydra versions before v1.0.0-rc.3+oryOS.9. Understand the impact, affected systems, exploitation, and mitigation steps.
ORY Hydra before v1.0.0-rc.3+oryOS.9 has a reflected cross-site scripting (XSS) vulnerability in the oauth2/fallbacks/error endpoint's error_hint parameter.
Understanding CVE-2019-8400
This CVE involves a security vulnerability in ORY Hydra versions prior to v1.0.0-rc.3+oryOS.9, allowing for reflected XSS attacks.
What is CVE-2019-8400?
Reflected cross-site scripting (XSS) vulnerability found in ORY Hydra versions earlier than v1.0.0-rc.3+oryOS.9 in the oauth2/fallbacks/error endpoint's error_hint parameter.
The Impact of CVE-2019-8400
This vulnerability could be exploited by attackers to execute malicious scripts in the context of a user's browser, potentially leading to account compromise, data theft, or unauthorized actions.
Technical Details of CVE-2019-8400
ORY Hydra versions before v1.0.0-rc.3+oryOS.9 are affected by this reflected XSS vulnerability.
Vulnerability Description
The vulnerability exists in the error_hint parameter of the oauth2/fallbacks/error endpoint, allowing attackers to inject and execute malicious scripts.
Affected Systems and Versions
- ORY Hydra versions earlier than v1.0.0-rc.3+oryOS.9
Exploitation Mechanism
Attackers can craft malicious links containing script code that, when clicked by a user with the vulnerability present, will execute the script in the user's browser.
Mitigation and Prevention
It is crucial to take immediate steps to address and prevent the exploitation of this vulnerability.
Immediate Steps to Take
- Upgrade ORY Hydra to version v1.0.0-rc.3+oryOS.9 or later to mitigate the XSS vulnerability.
- Implement input validation and output encoding to prevent XSS attacks.
Long-Term Security Practices
- Regularly update and patch software to the latest versions to address known vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate potential security weaknesses.
Patching and Updates
- Stay informed about security advisories and updates from ORY Hydra to apply patches promptly and ensure system security.