Vulnerability Description
Astro is a web framework for content-driven websites. In affected versions a bug in Astro’s CSRF-protection middleware allows requests to bypass CSRF checks. When the `security.checkOrigin` configuration option is set to `true`, Astro middleware will perform a CSRF check. However, a vulnerability exists that can bypass this security. A semicolon-delimited parameter is allowed after the type in `Content-Type`. Web browsers will treat a `Content-Type` such as `application/x-www-form-urlencoded; abc` as a `simple request` and will not perform preflight validation. In this case, CSRF is not blocked as expected. Additionally, the `Content-Type` header is not required for a request. This issue has been addressed in version 4.16.17 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Astro | Astro | < 4.16.17 |
Related Weaknesses (CWE)
References
- https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requestsTechnical Description
- https://github.com/withastro/astro/blob/6031962ab5f56457de986eb82bd24807e926ba1bProduct
- https://github.com/withastro/astro/commit/e7d14c374b9d45e27089994a4eb72186d05514Patch
- https://github.com/withastro/astro/security/advisories/GHSA-c4pw-33h3-35xwVendor Advisory
FAQ
What is CVE-2024-56140?
CVE-2024-56140 is a vulnerability with a CVSS score of 5.9 (MEDIUM). Astro is a web framework for content-driven websites. In affected versions a bug in Astro’s CSRF-protection middleware allows requests to bypass CSRF checks. When the `security.checkOrigin` configurat...
How severe is CVE-2024-56140?
CVE-2024-56140 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2024-56140?
Check the references section above for vendor advisories and patch information. Affected products include: Astro Astro.