API Security Scanner
Project description
Syntribos xxxxxxx x xxxxxxxxxxxxx x x xxxxxxxxxxx x xxxxxxxxx x xxxxxxx x xxxxx x xxx x x xxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxxxxxxxxx xxxxxxxxxxxxx xxxxxxxxxxx xxxxxxxxxxx xxxxxxxxx xxxxxxxxx xxxxxx xxxxxx xxx xxx x x x === Automated API Scanning ===
Syntribos is an Automated API Security Testing Tool utilizing the Open CAFE Framework.
Given a simple configuration file and an example HTTP request, Syntribos can replace any API URL, URL parameter, HTTP header and request body field with a given set of strings. This is similar to Burp Proxy’s Intruder sniper attack, but Syntribos iterates through each position automatically. Syntribos aims to automatically detect common security defects such as SQL injection, LDAP injection, buffer overflow, etc. In addition, Syntribos can be used to help identifying new security defects by fuzzing.
Syntribos has the capability to test any API, but is designed with OpenStack applications in mind.
Details
Free software: Apache license
Supported Operating Systems
Syntribos has been developed primarily in Linux and Mac environments, however it supports installation and execution on Windows. But it has not been tested yet.
Installation
Syntribos can be installed with pip from the git repository.
Run pip install git+git://github.com/rackerlabs/syntribos so that pip will auto-install all other dependencies.
To enable autocomplete for Syntribos, run the command . scripts/syntribos-completion
Run cafe-config init to create a directory named .opencafe in the user’s home directory, or in the case of a python virtualenv, in the virtualenv root folder.
Run cafe-config plugins install http to install the http library and give you the minimum plugins required to use Syntribos.
Configuration
Copy the Syntribos data directory to OpenCafe. This directory contains the fuzz string files. Copy the example configuration file to .opencafe/configs directory.
$cp syntribos/data/* .opencafe/data/ $cp syntribos/examples/configs/keystone.config .opencafe/configs/.
Modify the configuration files to update your keystone URL, API endpoint and user credentials.
vi .opencafe/configs/keystone.config
Example configuration file:
[syntribos] endpoint=<yourapiendpoint> [user] username=<yourusername> password=<yourpassword> user_id=<youruserid> [auth] endpoint=<yourkeystoneurl>
Your can create a directory to store the payloads for the resources being tested. The payloads under examples directory can give you quick start.
$ mkdir payloads $ mkdir payloads/keystone $ cp syntribos/examples/payloads/keystone/* payloads/keystone/.
Here are some examples for payload files
$ vi payloads/keystone/domains_post.txt
POST /v3/domains HTTP/1.1 Accept: application/json X-Auth-Token: CALL_EXTERNAL|syntribos.extensions.identity.client:get_token_v3:["user"]| Content-type: application/json { "domain": { "description": "Domain description", "enabled": true, "name": "CALL_EXTERNAL|syntribos.extensions.random_data.client:get_uuid:[]|" } }
$ vi payloads/keystone/domains_patch.txt
PATCH /v3/domains/c45412aa3cb74824a222c2f051bd62ac HTTP/1.1 Accept: application/json X-Auth-Token: CALL_EXTERNAL|syntribos.extensions.identity.client:get_token_v3:["user"]| Content-type: application/json { "domain": { "description": "Domain description", "enabled": true, "name": "test name" } }
$ vi payloads/keystone/domains_get.txt
GET /v3/domains/{c45412aa3cb74824a222c2f051bd62ac} HTTP/1.1 Accept: application/json X-Auth-Token: CALL_EXTERNAL|syntribos.extensions.identity.client:get_token_v3:["user"]|
Running Syntribos
To execute a Syntribos test, run syntribos specifying the configuration file and payload file(s) you want to use.
$ syntribos keystone.config payloads/keystone/domains_post.txt
To run syntribos against all payload files, just specify the payload directory:
$ syntribos keystone.config payloads/keystone/
Syntribos Logging
Syntribos takes advantage of the OpenCafe logging facility. Logs are found in .opencafe/logs/ Logs are then arranged in directories based on each Syntribos configuration file, and then by date and time. Each log filename has an easy to follow naming convention.
$ls .opencafe/logs/keystone.config/2015-08-18_14_44_04.333088/ cafe.master.log syntribos.tests.fuzz.integer_overflow.(domains_post.txt)_(INT_OVERFLOW_BODY)_(integer-overflow.txt)_str1_model1.log syntribos.tests.fuzz.integer_overflow.(domains_post.txt)_(INT_OVERFLOW_BODY)_(integer-overflow.txt)_str1_model2.log syntribos.tests.fuzz.integer_overflow.(domains_post.txt)_(INT_OVERFLOW_BODY)_(integer-overflow.txt)_str1_model3.log syntribos.tests.fuzz.integer_overflow.(domains_post.txt)_(INT_OVERFLOW_BODY)_(integer-overflow.txt)_str2_model1.log syntribos.tests.fuzz.integer_overflow.(domains_post.txt)_(INT_OVERFLOW_BODY)_(integer-overflow.txt)_str2_model2.log syntribos.tests.fuzz.integer_overflow.(domains_post.txt)_(INT_OVERFLOW_BODY)_(integer-overflow.txt)_str2_model3.log
Each log file includes the request details:
------------ REQUEST SENT ------------ request method..: POST request url.....: https://yourapiendpoint/v3/domains request params..: request headers.: {'Content-Length': '46', 'Accept-Encoding': 'gzip, deflate', 'Connection': 'keep-alive', 'Accept': 'application/json', 'User-Agent': 'python-requests/2.7.0 CPython/2.7.9 Darwin/11.4.2', 'Host': 'yourapiendpoint', 'X-Auth-Token': u'9b1ed3d1cc69491ab914dcb6ced00440', 'Content-type': 'application/json'} request body....: {"domain": {"description": "Domain description","enabled": "-1","name": u'ce9871c4-a0a1-4fbe-88db-f0729b43172c'}} 2015-08-18 14:44:12,464: DEBUG: cafe.engine.http.client:
and the response:
----------------- RESPONSE RECEIVED ----------------- response status..: <Response [406]> response time....: 1.32309699059 response headers.: {'content-length': '112', 'server': 'nginx', 'connection': 'keep-alive', 'date': 'Tue, 18 Aug 2015 19:44:11 GMT', 'content-type': 'application/json; charset=UTF-8'} response body....: {"message": "The server could not comply with the request since it is either malformed or otherwise incorrect."} ------------------------------------------------------------------------------- 2015-08-18 14:44:12,465: INFO: root: ======================================================== 2015-08-18 14:44:12,465: INFO: root: Test Case....: test_case 2015-08-18 14:44:12,465: INFO: root: Created At...: 2015-08-18 14:44:11.139070 2015-08-18 14:44:12,465: INFO: root: No Test description. 2015-08-18 14:44:12,465: INFO: root: ======================================================== 2015-08-18 14:44:12,465: WARNING: cafe.engine.models.data_interfaces.ConfigParserDataSource: No section: 'fuzz'. Using default value '200.0' instead 2015-08-18 14:44:12,465: DEBUG: root: Validate Length: Initial request length: 52 Initial response length: 112 Request length: 46 Response length: 112 Request difference: -6 Response difference: 0 Precent difference: 0.0 Config percent: 200.0
Note the “Validate Length” section at the end. This is used to help determine whether the test passed or failed. If the Percent difference exceeds the Config percent the test has failed. The Config percent is set in syntribos/syntribos/tests/fuzz/config.py. The Percent difference is calculated in syntribos/syntribos/tests/fuzz/base_fuzz.py. Additional validations, such as looking for SQL strings or stack traces, can be added to individual tests.
The Logs also contain a summary of data related to the test results above:
2015-08-18 14:44:12,466: INFO: root: ======================================================== 2015-08-18 14:44:12,466: INFO: root: Test Case......: test_case 2015-08-18 14:44:12,466: INFO: root: Result.........: Passed 2015-08-18 14:44:12,466: INFO: root: Start Time.....: 2015-08-18 14:44:12.464843 2015-08-18 14:44:12,466: INFO: root: Elapsed Time...: 0:00:00.001203 2015-08-18 14:44:12,466: INFO: root: ======================================================== 2015-08-18 14:44:12,467: INFO: root: ======================================================== 2015-08-18 14:44:12,467: INFO: root: Fixture........: syntribos.tests.fuzz.all_attacks.(agent_patch.txt)_(ALL_ATTACKS_BODY)_(all-attacks.txt)_str1_model1 2015-08-18 14:44:12,467: INFO: root: Result.........: Passed 2015-08-18 14:44:12,467: INFO: root: Start Time.....: 2015-08-18 14:44:11.139070 2015-08-18 14:44:12,467: INFO: root: Elapsed Time...: 0:00:01.328030 2015-08-18 14:44:12,468: INFO: root: Total Tests....: 1 2015-08-18 14:44:12,468: INFO: root: Total Passed...: 1 2015-08-18 14:44:12,468: INFO: root: Total Failed...: 0 2015-08-18 14:44:12,468: INFO: root: Total Errored..: 0 2015-08-18 14:44:12,468: INFO: root: ========================================================
Basic Syntribos Test Anatomy
Test Types
The tests included at release time include LDAP injection, SQL injection, integer overflow and the generic all_attacks.
In order to run a specific test, simply use the -t, --test-types option and provide syntribos with a keyword or keywords to match from the test files located in syntribos/tests/fuzz/.
For SQL injection tests, use:
$ syntribos keystone.config payloads/keystone/domains_post.txt -t SQL
For SQL injection tests against the payload body only, use:
$ syntribos keystone.config payloads/keystone/domains_post.txt -t SQL_INJECTION_BODY
For all tests against HTTP headers only, use:
$ syntribos keystone.config payloads/keystone/domains_post.txt -t HEADERS
Call External
Syntribos payload files can be supplemented with variable data, or data retrieved from external sources. This is handled using ‘extensions.’
Extensions are found in syntribos/syntribos/extensions/ .
One example packaged with Syntribos enables the tester to obtain an auth token from keystone/identity. The code is located in identity/client.py
To make use of this extension, add the following to the header of your payload file:
X-Auth-Token: CALL_EXTERNAL|syntribos.extensions.identity.client:get_token_v3:["user"]|
The “user” string indicates the data from the configuration file we added in opencafe/configs/keystone.config
Another example is found in random_data/client.py . This returns a UUID when random but unique data is needed. This can be used in place of usernames when fuzzing a create user call.
"username": "CALL_EXTERNAL|syntribos.extensions.random_data.client:get_uuid:[]|",
The extension function can return one value or be used as a generator if you want it to change for each test.
Action Field
While Syntribos is designed to test all fields in a request, it can also ignore specific fields through the use of Action Fields. If you want to fuzz against a static object ID, use th Action Field indicator as follows:
"ACTION_FIELD:id": "1a16f348-c8d5-42ec-a474-b1cdf78cf40f",
The ID provided will remain static for every test.
Executing Unittests
Navigate to the syntribos root directory
python -m unittest discover syntribos/ -p ut_*.py
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