CVE-2024-56140

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 v3 5.9 MEDIUM

5.9^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://developer.mozilla.org/en-US/docs/Web/HTTP/CORS#simple_requests
https://github.com/withastro/astro/blob/6031962ab5f56457de986eb82bd24807e926ba1b/packages/astro/src/core/app/middlewares.ts
https://github.com/withastro/astro/commit/e7d14c374b9d45e27089994a4eb72186d05514de
https://github.com/withastro/astro/security/advisories/GHSA-c4pw-33h3-35xw

Configurations

No configuration.

History

18 Dec 2024, 21:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2024-12-18 21:15

Updated : 2024-12-18 21:15

NVD link : CVE-2024-56140

Mitre link : CVE-2024-56140

CVE.ORG link : CVE-2024-56140

JSON object : View

Products Affected

No product.

CWE

CWE-352

Cross-Site Request Forgery (CSRF)

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