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Improper Neutralization of Special Elements used in a Command ('Command Injection')


Severity High
Score 9.8/10


The package simple-git before 3.3.0 is vulnerable to Command Injection via argument injection. When calling the ".fetch(remote, branch, handlerFn)" function, both the remote and branch parameters are passed to the git fetch subcommand. By injecting some git options, it was possible to get arbitrary command execution.

  • LOW
  • HIGH
  • NONE
  • NONE
  • HIGH
  • HIGH

CWE-77 - Command Injection

A command injection attack involves injecting an operating system command through the data input, which gets executed on the host operating system with the privileges of the victimized application. The impact of a command injection attack may range from loss of data confidentiality and integrity to unauthorized remote access to the hosting system. The attack may cause serious data breaches and system takeover.

Advisory Timeline

  • Published