Arbitrary Command Injection Affecting ps-visitor package, versions *
Snyk CVSS
Attack Complexity
Low
Threat Intelligence
Exploit Maturity
Proof of concept
EPSS
0.53% (77th
percentile)
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Test your applications- Snyk ID SNYK-JS-PSVISITOR-1078544
- published 18 Apr 2021
- disclosed 18 Apr 2021
- credit OmniTaint
Introduced: 18 Apr 2021
CVE-2021-23374 Open this link in a new tabHow 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.)