Arbitrary Command Injection Affecting kill-by-port package, versions <0.0.2


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

Exploit Maturity
Proof of concept
EPSS
1.63% (88th percentile)

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  • Snyk IDSNYK-JS-KILLBYPORT-1078531
  • published30 Mar 2021
  • disclosed23 Feb 2021
  • creditOmniTaint

Introduced: 23 Feb 2021

CVE-2021-23363  (opens in a new tab)
CWE-77  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade kill-by-port to version 0.0.2 or higher.

Overview

kill-by-port is a kills process by port

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

PoC (provided by reporter):

var kill_by_port = require('kill-by-port');

kill_by_port.killByPort('$(touch success)');

A file called success will be created as a result of the execution of touch success.

CVSS Scores

version 3.1