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bandit checks for security risks

If you find it too harsh, you may define PYTHON_BANDIT_DISABLE_ERRORS: true in your .mega-linter.yml config file

bandit documentation

bandit - GitHub

Configuration in Mega-Linter

Variable Description Default value
PYTHON_BANDIT_ARGUMENTS User custom arguments to add in linter CLI call
Ex: -s --foo "bar"
PYTHON_BANDIT_FILTER_REGEX_INCLUDE Custom regex including filter
Ex: (src\|lib)
Include every file
PYTHON_BANDIT_FILTER_REGEX_EXCLUDE Custom regex excluding filter
Ex: (test\|examples)
Exclude no file
PYTHON_BANDIT_CLI_LINT_MODE Override default CLI lint mode
- file: Calls the linter for each file
- list_of_files: Call the linter with the list of files as argument
- project: Call the linter from the root of the project
PYTHON_BANDIT_FILE_EXTENSIONS Allowed file extensions. "*" matches any extension, "" matches empty extension. Empty list excludes all files
Ex: [".py", ""]
PYTHON_BANDIT_FILE_NAMES_REGEX File name regex filters. Regular expression list for filtering files by their base names using regex full match. Empty list includes all files
Ex: ["Dockerfile(-.+)?", "Jenkinsfile"]
Include every file
PYTHON_BANDIT_PRE_COMMANDS List of bash commands to run before the linter None
PYTHON_BANDIT_POST_COMMANDS List of bash commands to run after the linter None
PYTHON_BANDIT_CONFIG_FILE bandit configuration file name
Use LINTER_DEFAULT to let the linter find it
PYTHON_BANDIT_RULES_PATH Path where to find linter configuration file Workspace folder, then Mega-Linter default rules
PYTHON_BANDIT_DISABLE_ERRORS Run linter but consider errors as warnings false
PYTHON_BANDIT_DISABLE_ERRORS_IF_LESS_THAN Maximum number of errors allowed 0

IDE Integration

Use bandit in your favorite IDE to catch errors before Mega-Linter !

IDE Extension Name Install
Atom bandit-lint Visit Web Site
Sublime Text SublimeLinter-bandit Visit Web Site
Visual Studio Code Native Support Visit Web Site

Mega-Linter Flavours

This linter is available in the following flavours

Flavor Description Embedded linters Info
all Default Mega-Linter Flavor 94 Docker Image Size (tag) Docker Pulls
python Optimized for PYTHON based projects 49 Docker Image Size (tag) Docker Pulls

Behind the scenes

How are identified applicable files

  • File extensions: .py

How the linting is performed

  • bandit is called once with the list of files as arguments

Example calls

bandit --configfile .bandit.yml

Help content

usage: bandit [-h] [-r] [-a {file,vuln}] [-n CONTEXT_LINES] [-c CONFIG_FILE]
              [-p PROFILE] [-t TESTS] [-s SKIPS] [-l] [-i]
              [-f {csv,custom,html,json,screen,txt,xml,yaml}]
              [--msg-template MSG_TEMPLATE] [-o [OUTPUT_FILE]] [-v] [-d] [-q]
              [--ignore-nosec] [-x EXCLUDED_PATHS] [-b BASELINE]
              [--ini INI_PATH] [--exit-zero] [--version]
              [targets ...]

Bandit - a Python source code security analyzer

positional arguments:
  targets               source file(s) or directory(s) to be tested

optional arguments:
  -h, --help            show this help message and exit
  -r, --recursive       find and process files in subdirectories
  -a {file,vuln}, --aggregate {file,vuln}
                        aggregate output by vulnerability (default) or by
                        maximum number of code lines to output for each issue
  -c CONFIG_FILE, --configfile CONFIG_FILE
                        optional config file to use for selecting plugins and
                        overriding defaults
  -p PROFILE, --profile PROFILE
                        profile to use (defaults to executing all tests)
  -t TESTS, --tests TESTS
                        comma-separated list of test IDs to run
  -s SKIPS, --skip SKIPS
                        comma-separated list of test IDs to skip
  -l, --level           report only issues of a given severity level or higher
                        (-l for LOW, -ll for MEDIUM, -lll for HIGH)
  -i, --confidence      report only issues of a given confidence level or
                        higher (-i for LOW, -ii for MEDIUM, -iii for HIGH)
  -f {csv,custom,html,json,screen,txt,xml,yaml}, --format {csv,custom,html,json,screen,txt,xml,yaml}
                        specify output format
  --msg-template MSG_TEMPLATE
                        specify output message template (only usable with
                        --format custom), see CUSTOM FORMAT section for list
                        of available values
  -o [OUTPUT_FILE], --output [OUTPUT_FILE]
                        write report to filename
  -v, --verbose         output extra information like excluded and included
  -d, --debug           turn on debug mode
  -q, --quiet, --silent
                        only show output in the case of an error
  --ignore-nosec        do not skip lines with # nosec comments
                        comma-separated list of paths (glob patterns
                        supported) to exclude from scan (note that these are
                        in addition to the excluded paths provided in the
                        config file) (default:
  -b BASELINE, --baseline BASELINE
                        path of a baseline report to compare against (only
                        JSON-formatted files are accepted)
  --ini INI_PATH        path to a .bandit file that supplies command line
  --exit-zero           exit with 0, even with results found
  --version             show program's version number and exit


Available tags:

    {abspath}, {relpath}, {line},  {test_id},
    {severity}, {msg}, {confidence}, {range}

Example usage:

    Default template:
    bandit -r examples/ --format custom --msg-template \
    "{abspath}:{line}: {test_id}[bandit]: {severity}: {msg}"

    Provides same output as:
    bandit -r examples/ --format custom

    Tags can also be formatted in python string.format() style:
    bandit -r examples/ --format custom --msg-template \
    "{relpath:20.20s}: {line:03}: {test_id:^8}: DEFECT: {msg:>20}"

    See python documentation for more information about formatting style:

The following tests were discovered and loaded:
  B101  assert_used
  B102  exec_used
  B103  set_bad_file_permissions
  B104  hardcoded_bind_all_interfaces
  B105  hardcoded_password_string
  B106  hardcoded_password_funcarg
  B107  hardcoded_password_default
  B108  hardcoded_tmp_directory
  B110  try_except_pass
  B112  try_except_continue
  B201  flask_debug_true
  B301  pickle
  B302  marshal
  B303  md5
  B304  ciphers
  B305  cipher_modes
  B306  mktemp_q
  B307  eval
  B308  mark_safe
  B309  httpsconnection
  B310  urllib_urlopen
  B311  random
  B312  telnetlib
  B313  xml_bad_cElementTree
  B314  xml_bad_ElementTree
  B315  xml_bad_expatreader
  B316  xml_bad_expatbuilder
  B317  xml_bad_sax
  B318  xml_bad_minidom
  B319  xml_bad_pulldom
  B320  xml_bad_etree
  B321  ftplib
  B323  unverified_context
  B324  hashlib_new_insecure_functions
  B325  tempnam
  B401  import_telnetlib
  B402  import_ftplib
  B403  import_pickle
  B404  import_subprocess
  B405  import_xml_etree
  B406  import_xml_sax
  B407  import_xml_expat
  B408  import_xml_minidom
  B409  import_xml_pulldom
  B410  import_lxml
  B411  import_xmlrpclib
  B412  import_httpoxy
  B413  import_pycrypto
  B501  request_with_no_cert_validation
  B502  ssl_with_bad_version
  B503  ssl_with_bad_defaults
  B504  ssl_with_no_version
  B505  weak_cryptographic_key
  B506  yaml_load
  B507  ssh_no_host_key_verification
  B601  paramiko_calls
  B602  subprocess_popen_with_shell_equals_true
  B603  subprocess_without_shell_equals_true
  B604  any_other_function_with_shell_equals_true
  B605  start_process_with_a_shell
  B606  start_process_with_no_shell
  B607  start_process_with_partial_path
  B608  hardcoded_sql_expressions
  B609  linux_commands_wildcard_injection
  B610  django_extra_used
  B611  django_rawsql_used
  B701  jinja2_autoescape_false
  B702  use_of_mako_templates
  B703  django_mark_safe

Installation on mega-linter Docker image

  • PIP packages (Python):