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Utilities to upgrade STIX and CybOX content to 2.0

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NOTE: This is an OASIS TC Open Repository. See the Governance section for more information.

The stix2-elevator is a software tool for converting STIX 1.x XML to STIX 2.0 or 2.1 JSON. Due to the differences between STIX 1.x and STIX 2.x, this conversion is best-effort only. During the conversion, stix2- elevator provides information on the assumptions it needs to make to produce valid STIX 2.x JSON, and what information was not able to be converted.

To convert STIX 2.x JSON back to STIX 1.x XML use the stix2-slider

The stix2-elevator is a “best-effort” attempt to convert STIX 1.x content to STIX 2.x content. Caution should be taken if the elevator is to be used in a production environment as warnings concerning the conversion are often generated. Users should determine which warnings are acceptable and use the –disable option in conjunction with the –error-policy option only to produce results when no other warnings are emitted.

STIX 1.x Composite Indicator Expressions and CybOX 2.x Composite Observable Expressions allow a level of flexibility not present in STIX 2 patterns. These composite expressions can frequently have ambiguous interpretations, so STIX 2 Indicators created by the stix2-elevator from STIX 1.x Indicators containing composite expressions should be inspected to ensure the STIX 2 Indicator has the intended meaning.

For more information, see the documentation on ReadTheDocs.

Please enter any comments on how to improve it into the issue tracker.


  • Python 2.7, or 3.4+

  • python-stix and its dependencies


    Make sure to use either the latest version of python-stix 1.1.1.x or 1.2.0.x, depending on whether you want to support STIX 1.1.1 or STIX 1.2.

  • python-stix2 >= 1.2.1

  • stix2-validator >= 2.0.0.dev3 and its dependencies

  • pycountry >= 19.8.18

  • stixmarx >= 1.0.6


Install with pip:

$ pip install stix2-elevator

This will install all necessary dependencies, including the latest version of python-stix.

If you need to support older STIX 1.1.1 content, install python-stix 1.1.1.x first:

$ pip install 'stix<1.2'
$ pip install stix2-elevator

You can also install the stix2-elevator from GitHub to get the latest (unstable) version:

$ pip install git+


It is recommended that you ensure that the input STIX 1.x file is valid before submitting it to the elevator. Use the stix-validator.

As A Script

The elevator comes with a bundled script which you can use to elevate STIX 1.1.1 - 1.2.1 content to STIX 2.0 or 2.1 content:

usage: stix2_elevator [-h]
            [--missing-policy {use-custom-properties,add-to-description,ignore}]
            [--custom-property-prefix CUSTOM_PROPERTY_PREFIX]
            [--package-created-by-id PACKAGE_CREATED_BY_ID]
            [--default-timestamp DEFAULT_TIMESTAMP]
            [--validator-args VALIDATOR_ARGS] [-e ENABLE] [-d DISABLE] [-s]
            [--message-log-directory MESSAGE_LOG_DIRECTORY]
            [--log-level {DEBUG,INFO,WARN,ERROR,CRITICAL}]
            [-m MARKINGS_ALLOWED] [-p {no_policy,strict_policy}]
            [-v {2.0,2.1}]

stix2-elevator v2.1

positional arguments:

file                  The input STIX 1.x document to be elevated.

optional arguments:

-h, --help            show this help message and exit

--missing-policy {use-custom-properties,add-to-description,ignore}
                      Policy for including STIX 1.x content that cannot be
                      represented directly in STIX 2.x. The default is 'add-

--custom-property-prefix CUSTOM_PROPERTY_PREFIX
                      Prefix to use for custom property names when missing
                      policy is 'use-custom-properties'. The default is

--infrastructure      Infrastructure will be included in the conversion.
                      Default for version 2.1 is true.

--incidents           Incidents will be included in the conversion. **This argument is deprecated.**

--package-created-by-id PACKAGE_CREATED_BY_ID
                      Use provided identifier for "created_by_ref"
                      properties. Example: --package-created-by-id "identity

--default-timestamp DEFAULT_TIMESTAMP
                      Use provided timestamp for properties that require a
                      timestamp. Example: --default-timestamp

--validator-args VALIDATOR_ARGS
                      Arguments to pass to stix2-validator. Default:
                      --strict-types Example: <file>
                      --validator-args="-v --strict-types -d 212"

-e ENABLE, --enable ENABLE
                      A comma-separated list of the stix2-elevator messages
                      to enable. If the --disable option is not used, no
                      other messages will be shown. Example:
             <file> --enable 250

-d DISABLE, --disable DISABLE
                      A comma-separated list of the stix2-elevator messages
                      to disable. Example: <file>
                      --disable 212,220

-s, --silent          If this flag is set, all stix2-elevator messages will
                      be disabled.

--message-log-directory MESSAGE_LOG_DIRECTORY
                      If this flag is set, all stix2-elevator messages will
                      be saved to file. The name of the file will be the
                      input file with extension .log in the specified
                      directory. Note, make sure the directory already
                      exists. Example: <file> --message-
                      log-directory "../logs"

                      The logging output level.

                      Avoid an error exit, if these markings are in the
                      content, but not supported by the elevator. Specify as
                      a comma-separated listExample: <
                      file > --markings-allowed

-p {no_policy,strict_policy},
--error-policy {no_policy,strict_policy},
--policy {no_policy,strict_policy}   #deprecated
                      The policy to deal with errors. The default is 'no_policy'.

-v {2.0,2.1}, --version {2.0,2.1}
                      The version of stix 2 to be produced. The default is

Refer to elevator_log_messages.rst for all stix2-elevator messages. Use the associated code number to –enable or –disable a message. By default, the stix2-elevator displays all messages. Note: disabling the message does not disable the functionality.

As A Library

You can also use this library to integrate STIX elevation into your own tools. You can elevate a STIX 1.x file:

from stix2elevator import elevate_file
from stix2elevator.options import initialize_options

results = elevate_file("stix_file.xml")

Additionally, a similar method exists to accept a string as an argument:

from stix2elevator import elevate_string
from stix2elevator.options import initialize_options

results = elevate_string("...")

To set options, use set_option_value, found in

Using the stepper

The stix-stepper is a simple script that will convert STIX 2.0 content to STIX 2.1 content.

You can invoke it as follows:

$ stix_stepper <2.0 file>

The 2.1 content is printed to stdout


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