Arbitrary Command Injection Affecting killport package, versions <1.0.2


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
1.16% (85th percentile)

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  • Snyk IDSNYK-JS-KILLPORT-1078535
  • published21 Mar 2021
  • disclosed23 Feb 2021
  • creditOmniTaint

Introduced: 23 Feb 2021

CVE-2021-23360  (opens in a new tab)
CWE-77  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade killport to version 1.0.2 or higher.

Overview

killport is an a nodejs module to kill any processes base on its port

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 killport = require('killport');
killport("$(touch success); #");

CVSS Scores

version 3.1