Arbitrary Command Injection Affecting psnode package, versions *



    Attack Complexity Low

    Threat Intelligence

    Exploit Maturity Proof of concept
    EPSS 0.53% (77th percentile)
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9.8 critical

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  • Snyk ID SNYK-JS-PSNODE-1078543
  • published 18 Apr 2021
  • disclosed 18 Apr 2021
  • credit OmniTaint

How to fix?

There is no fixed version for psnode.


psnode is an A Node.js KISS module to list and kill process on OSX and Windows.

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 psnode = require('psnode');
psnode.kill('$(touch success)', function() {});

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