Arbitrary Command Injection Affecting ps-visitor 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
4.55% (93rd percentile)

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  • Snyk IDSNYK-JS-PSVISITOR-1078544
  • published18 Apr 2021
  • disclosed18 Apr 2021
  • creditOmniTaint

Introduced: 18 Apr 2021

CVE-2021-23374  (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 ps-visitor.

Overview

ps-visitor is a Node.js visit command ps aux and kill.

Affected versions of this package are vulnerable to Arbitrary Command Injection. If attacker-controlled user input is given to the kill 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 ps_visitor = require('ps-visitor');
ps_visitor.kill('$(touch success)');

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

References

CVSS Scores

version 3.1