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ID: python-security/os-spawn
Language: Python
Severity: Error
Category: Security
Detect unsafe shell execution with the os
module. We should ensure the command is safe before execution. Use shlex
to sanitize user inputs.
os.spawn*()
documentationPython shlex() module
import os
directory = "/tmp"
# Use of unsanitized data to create a process
os.spawnl(os.P_WAIT, "/bin/ls")
os.spawnle(os.P_WAIT, "/bin/ls")
os.spawnlp(os.P_WAIT, "/bin/ls")
os.spawnlpe(os.P_WAIT, "/bin/ls")
os.spawnv(os.P_WAIT, "/bin/ls")
os.spawnve(os.P_WAIT, "/bin/ls")
os.spawnvp(os.P_WAIT, "/bin/ls")
os.spawnvpe(os.P_WAIT, "/bin/ls")
os.spawnvpe(os.P_WAIT, "/bin/ls " + directory)
import os
import shlex
# Use of shlex() to sanitize data
os.spawnl(os.P_WAIT, shlex.escape("/bin/ls"))
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