Unrecognized Content Security Policy directive 'worker-src' in Safari Browser - django

I have a django app that is embedded in Shopify. It is working fine in all other browsers except in Safari Browser. In safari there is the above mentioned issue in the log and getting internal server error for all other functionalities of the app.This is a part of my settings.py for the CSP settings:
CSP_FRAME_ANCESTORS = ("'self'", 'https://*.myshopify.com')
# default source as self
CSP_DEFAULT_SRC = ("'self'", "'unsafe-inline'", "'unsafe-eval'", "https://fonts.gstatic.com")
# style from our domain and bootstrapcdn
CSP_STYLE_SRC = ("'self'", "'unsafe-inline'", "https://fonts.googleapis.com")
# scripts from our domain and other domains
CSP_SCRIPT_SRC = ("'self'", "'unsafe-inline'", "'unsafe-eval'")
# images from our domain and other domains
CSP_IMG_SRC = ("'self'",
"https://*.s3.amazonaws.com", "data:", "https://cdn.shopify.com")
SESSION_COOKIE_SAMESITE = 'None'
SESSION_COOKIE_SECURE = True
XS_SHARING_ALLOWED_METHODS = ['POST', 'GET', 'PUT']
CSRF_COOKIE_SAMESITE = 'None'
CSRF_COOKIE_SECURE = True
STATIC_ROOT = os.path.join(BASE_DIR, 'staticfiles')
CSRF_TRUSTED_ORIGINS = [config('CSRF_TRUSTED_ORIGINS')]
Can anyone tell me what's the issue here?

The implemented support for various levels and directives of CSP differers between the browsers. Safari only recently added support for worker-src, see https://caniuse.com/?search=worker-src. If you upgrade to a more recent version it will probably work for you. However, you should also consider if your user base is ready and define fallbacks for other browsers if necessary.

Related

CSRF verification failed. Request aborted

Been working on my live server all day and just got it working, admin was working fine, i cleared cookies and suddenly i got the following error, and no fixes seem to be helping me. My website does have SSL yet so its still http(dont know if this has anything to do with it?)
DEBUG = False
CSRF_TRUSTED_ORIGINS = ['http://.*', 'http://example.com', 'http://www.example.com']
# HTTPS Settings
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = False
SECURE_SSL_REDIRECT = False
# HSTS Settings
SECURE_HSTS_SECONDS = 31536000
SECURE_HSTS_PRELOAD = True
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
This is the only form on my website that requires csrf_token and as you can see it already has it.
SOLVED
By adding the ip from my domain to the allowed hosts and trusted origins.
Do you have CsrfViewMiddleware in your MIDDLEWARE_CLASSES setting? Are you accessing the site non-securely (seems so) then it could not work. Try to disable CSRF_COOKIE_SECURE, CSRF_COOKIE_HTTPONLY and SESSION_COOKIE_SECURE and you will see it will work.

Requests to AWS using Django not using correct parameters on all files

I have a Django application that upon loading the admin, only receives 4 out of 6 of the necessary static files. The difference between the 4 successful and the 2 failed is that the following paramters are not present in the failed requests:
X-Amz-Algorithm
X-Amz-Credential
X-Amz-Date
X-Amz-Expires
X-Amz-SignedHeaders
X-Amz-Signature
However the parameters are present in the request headers referer.
Also it is consistently the same 2 files. And yes they exist as I will mention further down in this question.
I installed django-storages and boto3 to work with AWS.
Here are the relevant settings from settings.py:
INSTALLED_APPS = [
...
'storages',
...
]
AWS_S3_ACCESS_KEY_ID = 'my-access-key'
AWS_S3_SECRET_ACCESS_KEY = 'my-secret-access-key'
AWS_STORAGE_BUCKET_NAME = 'my-bucket-01'
AWS_S3_FILE_OVERWRITE = False
AWS_DEFAULT_ACL = None
DEFAULT_FILE_STORAGE = 'storages.backends.s3boto3.S3Boto3Storage'
STATICFILES_STORAGE = 'storages.backends.s3boto3.S3Boto3Storage'
AWS_S3_REGION_NAME = 'eu-west-2'
AWS_S3_SIGNATURE_VERSION = 's3v4'
AWS_S3_ADDRESSING_STYLE = "virtual"
A successful request:
https:// my-bucket-01.s3.eu-west-2.amazonaws.com/admin/css/responsive.css?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=my-access-key%2F20220217%2Feu-west-2%2Fs3%2Faws4_request&X-Amz-Date=20220217T212138Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=31bc0e43fcc693f70c7662432ee6d88d8358652894611a0f7387ac35febf5ef9
A failed request:
https:// my-bucket-01.s3.eu-west-2.amazonaws.com/admin/css/fonts.css
Failed requests referer:
https:// my-bucket-01.s3.eu-west-2.amazonaws.com/admin/css/base.css?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=my-access-key%2F20220217%2Feu-west-2%2Fs3%2Faws4_request&X-Amz-Date=20220217T212138Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=af8fb82686dd0dcc2600eebdf9ceecec482dd44be02a3c3f3a9b793f96cee617
I went to the link in the referer and it worked.
So my question is either:
Why do only some of my requests include the correct parameters and how do I get them to use the correct ones?
or
How do I force the requests to use the referers?

Django - CSRF problem after moving to production server

I moved applications to the production server and I have a problem with CSRF - Access denied (403)
CSRF verification failed. The request was aborted.
I checked in my browser and I don't have a cookie named
csrftoken
Part of my settings.py looks like this:
SECRET_KEY = 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx'
SESSION_COOKIE_SECURE = True SESSION_COOKIE_SAMESITE = None
CSRF_COOKIE_SECURE = True CSRF_COOKIE_SAMESITE = 'Strict'
#SECURE_HSTS_SECONDS = 31536000
#SECURE_CONTENT_TYPE_NOSNIFF = True
#CSRF_COOKIE_SECURE = True
#SESSION_COOKIE_SECURE = True
#SESSION_COOKIE_SAMESITE = None
#SECURE_HSTS_PRELOAD = True
I haven't turned on HTTPS yet
Everything worked fine on the development server.
Where to find the cause and what to improve?
problem solved.
You just had to generate an SSL certificate and enable HTTPS.
This post showed me the solution Django: Forbidden (CSRF cookie not set.)
What solved it for me was to add the following to settings.py, replacing "<my_domain>" part of course.
CSRF_TRUSTED_ORIGINS = ['https://<my_domain>.com']
This code above works like magic

How to fix mixed content error in Swagger?

I am running Django RF backend application on Gunicorn.
When trying to fetch data from Swagger I get "TypeError: Failed to fetch"
In console this error is reported:
Mixed Content: The page at 'https://****.com/swagger/' was loaded over HTTPS, but requested an insecure resource 'http://****.com/v2/products/'. This request has been blocked; the content must be served over HTTPS.
I tried everything I found and could think of including:
Adding
secure_scheme_headers = {
'X-FORWARDED-PROTOCOL': 'ssl',
'X-FORWARDED-PROTO': 'https',
'X-FORWARDED-SSL': 'on'}
to Gunicorn
and
USE_X_FORWARDED_HOST = True
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
to Django settings.
But nothing helps.
Swagger for Django: drf-yasg==1.12.1
I found the solution. In Django settings add
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True
# Security Headers
SECURE_CONTENT_TYPE_NOSNIFF = True
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_PRELOAD = True
SECURE_HSTS_SECONDS = 3600

Configuring Django Production Settings and Content Security Policy

I'm trying to configure my site to pass the tests at:
https://observatory.mozilla.org
https://csp-evaluator.withgoogle.com/
I've been looking at this blog post. I'm using the Django app called django-csp to implement this. My Django settings in production are as follows:
# Content Security Policy
CSP_DEFAULT_SRC = ("'none'", )
CSP_STYLE_SRC = ("'self'", "fonts.googleapis.com", "'sha256-/3kWSXHts8LrwfemLzY9W0tOv5I4eLIhrf0pT8cU0WI='")
CSP_SCRIPT_SRC = ("'self'", )
CSP_IMG_SRC = ("'self'",)
CSP_FONT_SRC = ("'self'", "fonts.gstatic.com")
CSP_CONNECT_SRC = ("'self'", )
CSP_OBJECT_SRC = ("'none'", )
CSP_BASE_URI = ("'none'", )
CSP_FRAME_ANCESTORS = ("'self'", 'https://example.com/', 'https://example.com/')
CSP_FORM_ACTION = ("'self'", )
CSP_INCLUDE_NONCE_IN = ('script-src',)
CSRF_COOKIE_SECURE = True
SESSION_COOKIE_SECURE = True
SECURE_CONTENT_TYPE_NOSNIFF = True
SECURE_BROWSER_XSS_FILTER = True
SECURE_SSL_REDIRECT = True
X_FRAME_OPTIONS = 'DENY'
SECURE_HSTS_SECONDS = 60
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_PRELOAD = True
Yet, when I run the aforementioned tests I fail even though I have the above setup. Moreover, in Chrome dev tools I receive no errors, which is great.
Anyone have advice on this please?
Thanks
Update:
I'm deploying the app via Heroku. When I test the appname.herokuapp.com url with Mozilla Observatory, I pass all the tests.
It seems that when I forward the domain appname.herokuapp.com to mywebsite.com, some settings are skipped? I failed the tests with mywebsite.com
I have added the CNAME www to be the value of the custom Heroku DNS.
Indeed, my issue was in the way I had configured my DNS settings. I kept my Django prodution settings as is (see above).
I added a custom domain in my Heroku settings and used the auto-generated server name in my CNAME settings in Cloudflare.
Then I ran a check in Mozilla Observatory and passed the tests.