我目前正在对我们的网站进行安全漏洞测试，而我自己的安全背景非常有限。
运行以下请求时：
http://127.0.0.1:8000/stuff/?template=%2Fe%00
我看到了错误（下面是完整的堆栈跟踪）：
Exception Type: ValueError at /stuff/
Exception Value: A string literal cannot contain NUL (0x00) characters.
这似乎在验证网址args时出现问题，并且不应允许使用字符0x00（空）。我相当确定在google's gruyere中我看到应该转义一些字符，但是转为null似乎很奇怪。
我当然可以尝试/除了/code/stuff/views.py中的第92行，但这无疑会出现在其他地方。
因此，我的问题是：
堆栈跟踪：
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/exception.py" in inner
34. response = get_response(request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
115. response = self.process_exception_by_middleware(e, request)
File "/usr/local/lib/python3.6/site-packages/django/core/handlers/base.py" in _get_response
113. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py" in view
71. return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/generic/base.py" in dispatch
97. return handler(request, *args, **kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/generic/list.py" in get
157. context = self.get_context_data()
File "/code/stuff/views.py" in get_context_data
92. context = super(StuffListView, self).get_context_data(**kwargs)
File "/usr/local/lib/python3.6/site-packages/django/views/generic/list.py" in get_context_data
119. paginator, page, queryset, is_paginated = self.paginate_queryset(queryset, page_size)
File "/usr/local/lib/python3.6/site-packages/django/views/generic/list.py" in paginate_queryset
69. page = paginator.page(page_number)
File "/usr/local/lib/python3.6/site-packages/django/core/paginator.py" in page
70. number = self.validate_number(number)
File "/usr/local/lib/python3.6/site-packages/django/core/paginator.py" in validate_number
48. if number > self.num_pages:
File "/usr/local/lib/python3.6/site-packages/django/utils/functional.py" in __get__
80. res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.6/site-packages/django/core/paginator.py" in num_pages
97. if self.count == 0 and not self.allow_empty_first_page:
File "/usr/local/lib/python3.6/site-packages/django/utils/functional.py" in __get__
80. res = instance.__dict__[self.name] = self.func(instance)
File "/usr/local/lib/python3.6/site-packages/django/core/paginator.py" in count
91. return c()
File "/usr/local/lib/python3.6/site-packages/django/db/models/query.py" in count
392. return self.query.get_count(using=self.db)
File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py" in get_count
504. number = obj.get_aggregation(using, ['__count'])['__count']
File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/query.py" in get_aggregation
489. result = compiler.execute_sql(SINGLE)
File "/usr/local/lib/python3.6/site-packages/django/db/models/sql/compiler.py" in execute_sql
1100. cursor.execute(sql, params)
File "/usr/local/lib/python3.6/site-packages/django/db/backends/utils.py" in execute
99. return super().execute(sql, params)
File "/usr/local/lib/python3.6/site-packages/django/db/backends/utils.py" in execute
67. return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "/usr/local/lib/python3.6/site-packages/django/db/backends/utils.py" in _execute_with_wrappers
76. return executor(sql, params, many, context)
File "/usr/local/lib/python3.6/site-packages/django/db/backends/utils.py" in _execute
84. return self.cursor.execute(sql, params)
Exception Type: ValueError at /stuff/
Exception Value: A string literal cannot contain NUL (0x00) characters.
我目前正在以非常有限的安全背景来测试我们的网站的安全漏洞。运行以下请求时：http://127.0.0.1:8000/stuff/?template=%2Fe%00 I ...
基于追溯，问题不在于URL参数不能包含%00，而是当它通过Paginator传递到您正在使用的数据库时，数据库驱动程序已抱怨事情。