Authentication Bypass Affecting expressjs-ip-control package, versions <1.0.7
Snyk CVSS
Attack Complexity
Low
Threat Intelligence
Exploit Maturity
Proof of concept
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Test your applications- Snyk ID SNYK-JS-EXPRESSJSIPCONTROL-1024442
- published 16 Nov 2020
- disclosed 29 Oct 2020
- credit mik317
How to fix?
Upgrade expressjs-ip-control to version 1.0.7 or higher.
Overview
expressjs-ip-control is a package to whitelist IP addresses also support for X-Forwarded-For ip addresses.
Affected versions of this package are vulnerable to Authentication Bypass. The IP whitelisting check can be passed by manipulating the X-Forwarded-For header.