Description
Spin is the developer tool for building and running serverless applications powered by WebAssembly. Prior to 2.4.3, some specifically configured Spin applications that use `self` requests without a specified URL authority can be induced to make requests to arbitrary hosts via the `Host` HTTP header. The following conditions need to be met for an application to be vulnerable: 1. The environment Spin is deployed in routes requests to the Spin runtime based on the request URL instead of the `Host` header, and leaves the `Host` header set to its original value; 2. The Spin application's component handling the incoming request is configured with an `allow_outbound_hosts` list containing `"self"`; and 3. In reaction to an incoming request, the component makes an outbound request whose URL doesn't include the hostname/port. Spin 2.4.3 has been released to fix this issue.
Analysis and contextual insights are available on OpenCVE Cloud.
Remediation
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Advisories
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2024-1586 | Spin is the developer tool for building and running serverless applications powered by WebAssembly. Prior to 2.4.3, some specifically configured Spin applications that use `self` requests without a specified URL authority can be induced to make requests to arbitrary hosts via the `Host` HTTP header. The following conditions need to be met for an application to be vulnerable: 1. The environment Spin is deployed in routes requests to the Spin runtime based on the request URL instead of the `Host` header, and leaves the `Host` header set to its original value; 2. The Spin application's component handling the incoming request is configured with an `allow_outbound_hosts` list containing `"self"`; and 3. In reaction to an incoming request, the component makes an outbound request whose URL doesn't include the hostname/port. Spin 2.4.3 has been released to fix this issue. |
Github GHSA |
GHSA-f3h7-gpjj-wcvh | Spin applications with specific configuration vulnerable to potential network sandbox escape |
References
History
No history.
Subscriptions
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2024-08-02T02:27:53.504Z
Reserved: 2024-04-22T15:14:59.166Z
Link: CVE-2024-32980
Updated: 2024-08-02T02:27:53.504Z
Status : Deferred
Published: 2024-05-08T15:15:10.530
Modified: 2026-04-15T00:35:42.020
Link: CVE-2024-32980
No data.
OpenCVE Enrichment
No data.
Weaknesses
EUVD
Github GHSA