Arbitrary Command Injection Affecting port-killer package, versions *


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
2.8% (91st percentile)

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  • Snyk IDSNYK-JS-PORTKILLER-1078533
  • published18 Mar 2021
  • disclosed23 Feb 2021
  • creditOmniTaint

Introduced: 23 Feb 2021

CVE-2021-23359  (opens in a new tab)
CWE-77  (opens in a new tab)
First added by Snyk

How to fix?

There is no fixed version for port-killer.

Overview

port-killer is a Kills the process running on a given port (assuming you have permission to do so)

Affected versions of this package are vulnerable to Arbitrary Command Injection. If (attacker-controlled) user input is given, it is possible for an attacker to execute arbitrary commands. This is due to use of the child_process exec function without input sanitization.

Running this PoC will cause the command touch success to be executed, leading to the creation of a file called success.

PoC (provided by reporter):

var port_killer = require('port-killer');

port_killer('$(touch success)');

References

CVSS Scores

version 3.1