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⚠️ NOTE: This project is no longer maintained at this location, please refer to https://github.com/coreruleset/ftw instead.

===================== OWASP-CRS-regressions

Introduction

Welcome to the OWASP Core Rule Set regression testing suite. This suite is meant to test specific rules in OWASP CRS version 3. The suite is designed to uses preconfigured IDs that are specific to this version of CRS. The tests themselves can be run without CRS and one would expect the same elements to be blocked, however one must override the default Output parameter in the tests.

Installation

The OWASP Core Rule Set project was part of the effort to develop FTW, the Framework for Testing WAFs. As a result, we use this project in order to run our regression testing. FTW is designed to use existing Python testing frameworks to allow for easy to read web based testing, provided in YAML. You can install FTW by from the repository (at https://github.com/fastly/ftw) or by running pip.

pip install -r requirements.txt

This will install FTW as a library. It can also be run natively, see the FTW documentation for more detail.

Requirements

There are Three requirements for running the OWASP CRS regressions.

  1. You must have ModSecurity specify the location of your error.log, this is done in the settings.ini file
  2. ModSecurity must be in DetectionOnly (or anomaly scoring) mode
  3. You must disable IP blocking based on previous events

To accomplish 2. and 3. you may use the following rule in your setup.conf:

SecAction "id:900005, \ 
  phase:1,\
  nolog, \
  pass, \
  ctl:ruleEngine=DetectionOnly,\ 
  ctl:ruleRemoveById=910000,\
  setvar:tx.paranoia_level=4,\
  setvar:tx.crs_validate_utf8_encoding=1,\
  setvar:tx.arg_name_length=100, \
  setvar:tx.arg_length=400"

Once these requirements have been met the tests can be run by using pytest.

Running The Tests

On Windows this will look like:

Single Rule File: py.test.exe -v CRS_Tests.py --rule=tests/test.yaml The Whole Suite: py.test.exe -v CRS_Tests.py --ruledir_recurse=tests/

On Linux this will look like:

Single Rule File: py.test -v CRS_Tests.py --rule=tests/test.yaml The Whole Suite: py.test -v CRS_Tests.py --ruledir_recurse=tests/