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.
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Wed, 18 Dec 2024 21:15:00 +0000
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Wed, 18 Dec 2024 20:45:00 +0000
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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. | |
Title | Bypass of CSRF Middleware in Astro | |
Weaknesses | CWE-352 | |
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cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-12-18T20:41:06.806Z
Updated: 2024-12-18T21:03:36.201Z
Reserved: 2024-12-16T17:30:30.068Z
Link: CVE-2024-56140

Updated: 2024-12-18T21:03:29.926Z

Status : Received
Published: 2024-12-18T21:15:08.353
Modified: 2024-12-18T21:15:08.353
Link: CVE-2024-56140

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