Analyse the security of your website’s headers!
The headerexposer module provides functions to analyse the security of a website’s headers.
It can be loaded as a module, or directly ran from the commandline.
It is designed to be cross-platforms, and was tested in various Linux/Windows terminals.
These requirements will automatically be installed upon headerexposer's installation with pip.
- ansiwrap: The standard textwrap module does not support ANSI codes, hence the use of ansiwrap as a replacement.
- colorama: This is only used for color compatibility on Microsoft platforms.
- jsonschema: This is used for json validation.
- requests: Used in the module's CLI for performing HTTP requests.
- tabulate: Used for printing nice tables.
- urllib3: (normally a dependency of requests) This is only used to intentionally suppress a specific warning.
Let pip take care of everything:
python -m pip install headerexposer
Global usage:
usage: headerexposer [-h] [-b BASELINE_PATH] [-s] [--no-explanation-colors]
[-w MAX_WIDTH]
{analyse,demo,show} ...
Analyse the security of your website's headers!
optional arguments:
-h, --help show this help message and exit
-b BASELINE_PATH, --baseline-path BASELINE_PATH
Path to the baseline.json file for the header analysis (default:
/home/aja/.local/lib/python3.8/site-
packages/headerexposer/baseline.json).
commands:
Use [command] -h for additional help.
{analyse,demo,show}
analyse Analyse a given url's headers.
demo Show a demonstration of what would be printed for sample headers
with the selected baseline.json.
show Show the selected baseline without doing any analysis.
output options:
-s, --short Shorten the output. Do not print the request parameters, do not
print the response details, do not print headers' descriptions,
do not print references.
--no-explanation-colors
Suppress colors in explanations, except in reference links.
-w MAX_WIDTH, --max-width MAX_WIDTH
The maximum width of the output. Defaults to the screen width
(90 columns).
If you want to write a new baseline.json, consider using baseline_schema.json
(/home/aja/.local/lib/python3.8/site-packages/headerexposer/baseline_schema.json) as docum
entation.
Authors:
* Frédéric Proux, senior pentester at HeadMind Partners
* Alexandre Janvrin, pentester at HeadMind Partners
* Joyston Anton Raveendran, pentester at HeadMind Partners
(https://www.headmind.com)
License: AGPLv3+
This software is provided "as is", without any warranty of any kind, express or implied.
For more information, please consult https://github.com/LivinParadoX/headerexposer.
analyse usage:
usage: headerexposer analyse [-h] [-b BASELINE_PATH]
[-m {GET,OPTIONS,HEAD,POST,PUT,PATCH,DELETE}]
[--params PARAMS] [-d DATA | -f FILE] [-H HEADERS]
[-C COOKIES] [-U USERNAME] [-P PASSWORD] [-t TIMEOUT] [-r]
[-p PROXY] [-k] [-c CERT] [-a USER_AGENT] [-s]
[--no-explanation-colors] [-w MAX_WIDTH]
url
positional arguments:
url The url to test.
optional arguments:
-h, --help show this help message and exit
-b BASELINE_PATH, --baseline-path BASELINE_PATH
Path to the baseline.json file for the header analysis (default:
/home/aja/.local/lib/python3.8/site-
packages/headerexposer/baseline.json).
request options:
-m {GET,OPTIONS,HEAD,POST,PUT,PATCH,DELETE}, --method {GET,OPTIONS,HEAD,POST,PUT,PATCH,D
ELETE}
HTTP method to use for the request. Default: "GET".
--params PARAMS Add multiple, ampersand-separated parameters to the request.
-d DATA, --data DATA Data to append to the request. Mutually exclusive with --file.
-f FILE, --file FILE Path to a file to append to the request. Mutually exclusive with
--data.
-H HEADERS, --headers HEADERS
Add multiple, newline-separated HTTP headers to the request.
-C COOKIES, --cookies COOKIES
Add multiple, semicolon-separated cookies to the request.
-U USERNAME, --username USERNAME
username to use in Basic/Digest/Custom HTTP Authentication.
-P PASSWORD, --password PASSWORD
password to use in Basic/Digest/Custom HTTP Authentication.
-t TIMEOUT, --timeout TIMEOUT
How many seconds to wait for the server to send data before
giving up, as float.
-r, --disallow-redirects
Disable GET/OPTIONS/POST/PUT/PATCH/DELETE/HEAD redirection.
Defaults to enabled redirection.
-p PROXY, --proxy PROXY
Proxy to use for the request.
-k, --verify Verify SSL certificates. Defaults to an insecure behavior.
-c CERT, --cert CERT Optional path to the SSL client .pem certificate for client
authentication.
-a USER_AGENT, --user-agent USER_AGENT
User Agent to use. Defaults to a recent Google Chrome user
agent.
output options:
-s, --short Shorten the output. Do not print the request parameters, do not
print the response details, do not print headers' descriptions,
do not print references.
--no-explanation-colors
Suppress colors in explanations, except in reference links.
-w MAX_WIDTH, --max-width MAX_WIDTH
The maximum width of the output. Defaults to the screen width
(90 columns).
demo usage:
usage: headerexposer demo [-h] [-b BASELINE_PATH] [-s] [--no-explanation-colors]
[-w MAX_WIDTH]
optional arguments:
-h, --help show this help message and exit
-b BASELINE_PATH, --baseline-path BASELINE_PATH
Path to the baseline.json file for the header analysis (default:
/home/aja/.local/lib/python3.8/site-
packages/headerexposer/baseline.json).
output options:
-s, --short Shorten the output. Do not print the request parameters, do not
print the response details, do not print headers' descriptions,
do not print references.
--no-explanation-colors
Suppress colors in explanations, except in reference links.
-w MAX_WIDTH, --max-width MAX_WIDTH
The maximum width of the output. Defaults to the screen width
(90 columns).
show usage:
usage: headerexposer show [-h] [-b BASELINE_PATH] [-s] [--no-explanation-colors]
[-w MAX_WIDTH]
optional arguments:
-h, --help show this help message and exit
-b BASELINE_PATH, --baseline-path BASELINE_PATH
Path to the baseline.json file for the header analysis (default:
/home/aja/.local/lib/python3.8/site-
packages/headerexposer/baseline.json).
output options:
-s, --short Shorten the output. Do not print the request parameters, do not
print the response details, do not print headers' descriptions,
do not print references.
--no-explanation-colors
Suppress colors in explanations, except in reference links.
-w MAX_WIDTH, --max-width MAX_WIDTH
The maximum width of the output. Defaults to the screen width
(90 columns).
>>> import headerexposer as he
>>> import requests
>>> baseline = he.load_baseline("baseline.json")
>>> resp = requests.get("https://google.com")
>>> findings = he.analyse_headers(resp.headers, baseline, short=True)
>>> print(he.tabulate_findings(findings))
Header Value Rating Explanation
------------------------- ---------- ---------- -------------------------------------------
Strict-Transport-Security Absent [ＢＡＤ] The header is absent. It is
recommended to set the header's value to
"max-age=31536000; includeSubDomains;
preload". This will tell users'
browsers that...
...
- Frédéric Proux, senior penetration tester at HeadMind Partners. I created the original headerexposer which helped HeadMind Partners's auditors to test the security of our customers' websites' headers for many years!
- Alexandre Janvrin, penetration tester at HeadMind Partners. I improved upon Fred's design by adding the current pattern-matching system, many header explanations, the ability to send custom headers, cookies, parameters, etc. in the initial request, and nice cross-platform colored table outputs!
https://www.headmind.com
AGPLv3+, see LICENSE for more details.
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