PatchWork AutoFix

[CTY-git]

This pull request from patched fixes 54 issues.

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• File changed: introduction/views.py

  Fixed CSRF vulnerability and secure cookie handling in auth_failure_lab3 function.

  Removed the @csrf_exempt decorator and set secure, httponly, and samesite parameters to True, True, 'Lax' respectively in set_cookie method.
  Security improvement for Django cookie settings

  The "set_cookie" function parameters of the Django response object have been updated to include secure, httponly, and samesite properties. The secure and httponly parameters have been set to "True" to enhance security, preventing cookies from being sent over http and protecting against Cross-Site Scripting attacks. The samesite parameter has been set to "Lax" to add some level of CSRF protection by ensuring the cookie is only sent in same-site navigation.
  Enhanced Django cookie handling

  Implemented secure, httponly, and samesite settings for Django cookies via the response.set_cookie() function. Amended the set_cookie function to include secure=True, httponly=True, and samesite='Lax' per the security best practices.
  Replace MD5 with secure password hashing function scrypt

  MD5, which is not considered a secure password hash, has been replaced with hashlib.scrypt, a more secure password hashing function.
  Sanitize user-controlled request data and use Django templates to manage HTML rendering

  1. Added escape() function from django.utils.html to sanitize the blog input.
  2. Replaced manual generation of HTML string with Django's render() function.
  Mitigate Server Side Request Forgery (SSRF) vulnerability by validating URL against an allowlist

  The patch adds an allowlist for schemes and hosts, restricts to forward the response to the user, and puts a check to make sure the URL being forwarded is from the allowlisted schemes and hosts before making requests.
  Fixed Path Traversal vulnerability

  Added os.path.abspath() call to canonicalize the path and prevent path traversal attacks.
  Fixed CSRF & SQL Injection vulnerability

  Removed the @csrf_exempt decorator and replaced the manual SQL query building with Django's built-in ORM queries that use parameters.
  Remove @csrf_exempt decorator to increase security against potential CSRF attack

  Removed the @csrf_exempt decorator in the vulnerable_function in order to enable CSRF protection on this route. This decorator was likely an oversight or temporary fix and leaving it would render this route vulnerable to CSRF attacks.
  Remove CSRF exemption for route to enhance security.

  The @csrf_exempt decorator was removed from the a1_broken_access_lab_2 function. By default, the Django framework checks for CSRF tokens on all post requests. Instead, we will allow Django to handle CSRF verification.
  Fixed CSRF vulnerability by removing @csrf_exempt decorator

  Removed the @csrf_exempt decorator from the a1_broken_access_lab_1 function. As a result, Django will now enforce CSRF protection on this view.
  Removed @csrf_exempt decorator to prevent CSRF vulnerabilities

  The @csrf_exempt decorator which disables the CSRF protection for the given view has been removed. Now, Django will handle and enforce CSRF protection on this view.
  Removed @csrf_exempt decorator to prevent potential CSRF attacks.

  Removed @csrf_exempt decorator which used to expose the a9_lab2 route to potential CSRF attacks. Due to its removal in the updated code, Django’s built-in CSRF protection is enabled, adding CSRF token to the requests.
  Fixed CSRF exempt and insecure deserialization issues in a9_lab function.

  Replaced @csrf_exempt decorator with @csrf_protect to enforce CSRF token check. Also, replaced "yaml.load" with "yaml.safe_load" to prevent RCE attacks.
  Removal of CSRF token exemption

  The @csrf_exempt decorator was removed from the function and the request token check was added.
  Removed @csrf_exempt and eval() to improve security.

  @csrf_exempt decorator was removed to ensure the route is now protected against Cross Site Request Forgery (CSRF). eval() method was used which can potentially enable execution of arbitrary remote code if exploited. It is replaced by using explicit computations, limiting it to expected functional scope.
  Improved security by removing CSRF exemption and securing subprocess calls.

  Removed the @csrf_exempt decorator to increase security. Utilized shlex.quote() to safely format user supplied input in subprocess calls and prevent command injection. Changed shell=True to shell=False to mitigate shell propagation issues.
  Removed usage of @csrf_exempt to bolster CSRF protection

  The @csrf_exempt decorator was removed from the ba_lab function declaration. This re-enables the CSRF protection mechanism on this route by default.
  Fixed CSRF vulnerability by removing @csrf_exempt decorator

  The @csrf_exempt decorator was removed from the 'ba' function. The function was also modified to use 'request.POST.get()' for request data processing.
  Fixed potential XSS vulnerability by using Django's HttpResponse method correctly.

  The HttpResponse() method used in the code directly rendered data to the end user which could potentially lead to a XSS vulnerability. Fixed this by using the shortcut render() method that allows HTML to be safely rendered as it takes care of the escaping itself.
  Secure Django's HttpResponse and set_cookie calls for XSS prevention and secure cookie handling.

  Two major changes have been done in the code:

  1. The HttpResponse object has been replaced with Django's render function to serve HTML to the end user, thus adding Django's built-in XSS filtering to the code.

  2. The set_cookie function has been updated with secure cookie flags. By setting secure=True, httponly=True, and samesite='Lax', it guarantees the cookies are only transported over HTTPS, not accessible by client-side JavaScript, and sent only to same-site URLs; thereby improving cookie security.

  Secure cookie handling and XSS vulnerability fix

  1. Updated response.set_cookie() function to set secure=True, httponly=True, and samesite='Lax' for improving cookie security.

• Replaced HttpResponse object usage with the built-in Django's render() function to ensure safe HTML rendering and prevent potential XSS attacks.

  Fixed Cross-Site Request Forgery (CSRF) vulnerability by removing @csrf_exempt.

  The @csrf_exempt decorator was removed from the xxe_parse function allowing Django's built-in CSRF protection to be applied. This change fixes a potential CSRF vulnerability where an attacker could manipulate a user's account or exfiltrate private data.
  Remove @csrf_exempt to add CSRF protection

  Removed the @csrf_exempt decorator from the xxe_see function to ensure that CSRF tokens are set for this route and requests are validated accordingly.
  Secure handling of Django cookies and avoid insecure deserialization

  1. Enabled secure, httponly and samesite settings for Django cookies to enhance security.

• Replaced unsafe pickle module for deserialization with secure json module.

  Mitigated SQL injection vulnerability by implementing parameterized queries

  Replaced raw SQL query-string interpolation with Django's built-in parameterized query method.

• File changed: introduction/mitre.py
  Removed use of @csrf_exempt to mitigate potential CSRF attack

  The @csrf_exempt decorator was removed from 'mitre_lab_17_api' function. This decorator was unknowingly disabling CSRF protection for the function, which could have potentially resulted in an unauthorized cross-site request forgery attack.
  Fixed insecure subprocess call with shell=True.

  Changed the subprocess call from 'shell=True' to 'shell=False'. This will restrict the subprocess from inheriting all shell settings and variables, which can be a security threat.
  Refactor csrf_exempt decorator and eval method usage for security enhancements.

  Removed the @csrf_exempt decorator to set CSRF token for the route. Replaced the 'eval' method with literal_eval from the ast module to safely parse and evaluate the expression.
  Removed @csrf_exempt decorator to fix CSRF vulnerability

  The @csrf_exempt decorator was removed from the view function csrf_transfer_monei. This decorator disables CSRF protection for the specific route which can open the door for CSRF attacks. Now Django's built-in CSRF protection will work for this route as expected and help defend against CSRF attacks.
  Hash password using scrypt and secure the JWT secret key and the cookie.

  Replaced the MD5 password hashing function with the scrypt function provided by the hashlib library. Moved the JWT secret key to environment variables instead of hardcoding it. Secured the Django cookie by setting secure=True, httponly=True, and samesite='Lax' in response.set_cookie.

• File changed: introduction/templates/Lab/ssrf/ssrf_discussion.html
  Added missing csrf_token to form in Django template

  The csrf_token was missing from the form in the Django template which could make it susceptible to CSRF attacks. This change includes adding the CSRF token inside the form to prevent CSRF attacks.
  Added CSRF token in form to prevent CSRF attacks.

  The form was missing a csrf_token attribute which is important to prevent Cross-Site Request Forgery(CSRF) attacks. Added the CSRF token.
  Added csrf_token to django form

  csrf_token has been specified to the django form to prevent CSRF attacks.
  Added csrf_token to Django template form

  Added the Django template tag { csrf_token } into the form for POST requests. This is required to protect against Cross-Site Request Forgery attacks.

• File changed: introduction/apis.py
  Fix CSRF vulnerability and sanitize user-controlled request data.

  Removed "@csrf_exempt" to ensure CSRF token is set for this route.
  Escape user-controlled data before writing into a file to prevent potential code injection attacks. "html.escape(code)" is added to sanitize user input.
  Removed @csrf_exempt to fix CSRF token vulnerability

  Necessary changes were made to enable CSRF protection for the route. The @csrf_exempt decorator was removed from the A6_disscussion_api function.
  Removed @csrf_exempt decorator from A7_discussion_api to mitigate CSRF vulnerability

  The @csrf_exempt decorator was removed because it bypassed the CSRF protection, leaving the route vulnerable to CSRF attacks. The code was modified to use the appropriate CSRF token.
  Fixed CSRF Token Vulnerability and Escaped User-Controlled Data

  Removed the @csrf_exempt decorator to enable CSRF token for this route. Also, added the escape function from Django's utils.html module to sanitize user-controlled data that is written to the file.
  Remove CSRF exemption for ssrf_code_checker view

  Removed the "@csrf_exempt" decorator from the ssrf_code_checker view. All POST requests to this view must now include a CSRF token.

• File changed: introduction/templates/Lab/A9/a9_lab2.html
  Fixed potential XSS vulnerability in template displayed data

  Removed direct use of a template variable inside a JavaScript alert function to prevent potential cross-site scripting attacks. Instead, the template variable is placed inside a HTML element and its value is extracted with JavaScript
  Added CSRF token to the manually created form in Django templates.

  Included the use of {% csrf_token %} in the form to prevent CSRF attacks.

• File changed: docker-compose.yml
  Security Enhancement in Service Configurations

  Implemented security measures in db, web and migration service configurations to prevent privilege escalation via setuid or setgid binaries by adding 'no-new-privileges:true' in 'security_opt'. Also, defined the root filesystem as read-only to prevent modifications from malicious applications by adding 'read_only: true'.

• File changed: introduction/playground/A9/api.py
  Removed @csrf_exempt decorator from log_function_target

  The existing Django decorator @csrf_exempt was removed from log_function_target function. Removing this ensures that the CSRF protection mechanism remains in effect for this endpoint.

• File changed: introduction/playground/A9/archive.py
  Removed CSRF exemption from route.

  The decorator "@csrf_exempt" is removed from the definition of the function 'log_function_target' which was exempting the route from csrf protection. This could lead to Cross Site Request Forgery attacks which could possibly give an attacker access to manipulate user's account. The decorator in effect was disabling the Cross Site Request forgery protection.

• File changed: introduction/static/js/a9.js
  Fixed possible XSS vulnerability by not directly assigning user input to innerHTML

  Replaced the use of innerHTML with textContent to prevent potential Cross-Site Scripting (XSS) attacks. The textContent property does not parse HTML, thus makes it safer when dealing with user-controlled data.

• File changed: introduction/templates/Lab/A9/a9_lab.html
  Added missing csrf_token in django form.

  Added {% csrf_token %} just after the 'form' tag opens. This is a built-in template tag in Django for handling CSRF protection. It is required in every POST form that targets an internal URL to prevent cross site request forgery.

• File changed: introduction/templates/Lab/BrokenAccess/ba_lab.html
  Added missing CSRF token in Django template

  Included {% csrf_token %} inside the form to protect against Cross-Site Request Forgery attacks.

• File changed: introduction/templates/Lab/BrokenAuth/otp.html
  Adding csrf_token to forms in django template to prevent CSRF attacks

  There were forms in the django templates which were not specifying a csrf_token. As a result, the application was vulnerable to CSRF attacks. Therefore, Dyango's {% csrf_token %} template tag has been added to the forms to protect against these types of attacks.

• File changed: introduction/templates/Lab/CMD/cmd_lab.html
  Added csrf_token to forms for CSRF attacks prevention

  Added {% csrf_token %} inside the form tag to prevent CSRF attacks.

• File changed: introduction/templates/Lab/CMD/cmd_lab2.html
  Added missing csrf_token to the form

  The Django form in the template was missing a csrf_token which is necessary to prevent Cross-Site Request Forgery (CSRF) attacks where an attacker tricks the victim into submitting a malicious request. It was added immediately after the form method.

• File changed: introduction/templates/Lab/XSS/xss_lab_3.html
  Fixed potential XSS vulnerability in script tag.

  Replaced direct use of https://github.com/patched-codes/pygoat/pull/3/files#diff-5694d08a2e53ffcae0c3103e5ad6f6076abd960eb1f8a56577040bc1028f702b in script tag with Django's safe 'json_script' template tag, and retrieving the data in the script tag by using the 'document.getElementById' function, preventing an XSS attack.

• File changed: introduction/templates/Lab_2021/A1_BrokenAccessControl/broken_access_lab_1.html
  Added CSRF protection to Django form

  The Django form in the template lacked a csrf_token, which made it vulnerable to Cross-Site Request Forgery (CSRF) attacks. Therefore, inserted the {% csrf_token %} inside the form tag to protect against such attacks.

• File changed: introduction/templates/Lab_2021/A1_BrokenAccessControl/broken_access_lab_2.html
  Added csrf_token in Django form to prevent CSRF attacks

  Added {% csrf_token %} inside the form element to prevent CSRF attacks in Django application.