Vulnerability Description
In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.9.0, 5.2.0, and 6.3.0. If user-supplied input was passed into append/override_content_security_policy_directives, a newline could be injected leading to limited header injection. Upon seeing a newline in the header, rails will silently create a new Content-Security-Policy header with the remaining value of the original string. It will continue to create new headers for each newline. This has been fixed in 6.3.0, 5.2.0, and 3.9.0.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Secure Headers | < 3.9.0 |
Related Weaknesses (CWE)
References
- https://github.com/twitter/secure_headers/commit/301695706f6a70517c2a90c6ef9b321Patch
- https://github.com/twitter/secure_headers/security/advisories/GHSA-w978-rmpf-qmwExploitMitigationThird Party Advisory
- https://github.com/twitter/secure_headers/commit/301695706f6a70517c2a90c6ef9b321Patch
- https://github.com/twitter/secure_headers/security/advisories/GHSA-w978-rmpf-qmwExploitMitigationThird Party Advisory
FAQ
What is CVE-2020-5216?
CVE-2020-5216 is a vulnerability with a CVSS score of 4.4 (MEDIUM). In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.9.0, 5.2.0, and 6.3.0. If user-supplied input was passed into append/override_content_se...
How severe is CVE-2020-5216?
CVE-2020-5216 has been rated MEDIUM with a CVSS base score of 4.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-5216?
Check the references section above for vendor advisories and patch information. Affected products include: Twitter Secure Headers.