CVE-2024-32980 – Spin contains a potential network sandbox escape for specifically configured Spin applications

https://notcve.org/view.php?id=CVE-2024-32980

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. • https://github.com/fermyon/spin/commit/b3db535c9edb72278d4db3a201f0ed214e561354 https://github.com/fermyon/spin/security/advisories/GHSA-f3h7-gpjj-wcvh • CWE-610: Externally Controlled Reference to a Resource in Another Sphere •