B108: hardcoded_tmp_directory

B108: Test for insecure usage of tmp file/directory

Safely creating a temporary file or directory means following a number of rules (see the references for more details). This plugin test looks for strings starting with (configurable) commonly used temporary paths, for example:

/tmp

/var/tmp

/dev/shm

etc

Config Options:

This test plugin takes a similarly named config block, hardcoded_tmp_directory. The config block provides a Python list, tmp_dirs, that lists string fragments indicating possible temporary file paths. Any string starting with one of these fragments will report a MEDIUM confidence issue.

hardcoded_tmp_directory:
    tmp_dirs: ['/tmp', '/var/tmp', '/dev/shm']

Example: