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Bump scrapy from 2.5.1 to 2.6.2 in /python3.9 #197

Closed dependabot[bot] closed 1 year ago

dependabot[bot] commented 2 years ago

Bumps scrapy from 2.5.1 to 2.6.2.

Release notes

Sourced from scrapy's releases.

2.6.2

Fixes a security issue around HTTP proxy usage, and addresses a few regressions introduced in Scrapy 2.6.0.

See the changelog.

2.6.1

Fixes a regression introduced in 2.6.0 that would unset the request method when following redirects.

2.6.0

  • Security fixes for cookie handling (see details below)
  • Python 3.10 support
  • asyncio support is no longer considered experimental, and works out-of-the-box on Windows regardless of your Python version
  • Feed exports now support pathlib.Path output paths and per-feed item filtering and post-processing

See the full changelog

Security bug fixes

  • When a Request object with cookies defined gets a redirect response causing a new Request object to be scheduled, the cookies defined in the original Request object are no longer copied into the new Request object.

    If you manually set the Cookie header on a Request object and the domain name of the redirect URL is not an exact match for the domain of the URL of the original Request object, your Cookie header is now dropped from the new Request object.

    The old behavior could be exploited by an attacker to gain access to your cookies. Please, see the cjvr-mfj7-j4j8 security advisory for more information.

    Note: It is still possible to enable the sharing of cookies between different domains with a shared domain suffix (e.g. example.com and any subdomain) by defining the shared domain suffix (e.g. example.com) as the cookie domain when defining your cookies. See the documentation of the Request class for more information.

  • When the domain of a cookie, either received in the Set-Cookie header of a response or defined in a Request object, is set to a public suffix <https://publicsuffix.org/>_, the cookie is now ignored unless the cookie domain is the same as the request domain.

    The old behavior could be exploited by an attacker to inject cookies from a controlled domain into your cookiejar that could be sent to other domains not controlled by the attacker. Please, see the mfjm-vh54-3f96 security advisory for more information.

Changelog

Sourced from scrapy's changelog.

Scrapy 2.6.2 (2022-07-25)

Security bug fix:

  • When :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware processes a request with :reqmeta:proxy metadata, and that :reqmeta:proxy metadata includes proxy credentials, :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware sets the Proxy-Authentication header, but only if that header is not already set.

    There are third-party proxy-rotation downloader middlewares that set different :reqmeta:proxy metadata every time they process a request.

    Because of request retries and redirects, the same request can be processed by downloader middlewares more than once, including both :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware and any third-party proxy-rotation downloader middleware.

    These third-party proxy-rotation downloader middlewares could change the :reqmeta:proxy metadata of a request to a new value, but fail to remove the Proxy-Authentication header from the previous value of the :reqmeta:proxy metadata, causing the credentials of one proxy to be sent to a different proxy.

    To prevent the unintended leaking of proxy credentials, the behavior of :class:~scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware is now as follows when processing a request:

    • If the request being processed defines :reqmeta:proxy metadata that includes credentials, the Proxy-Authorization header is always updated to feature those credentials.

    • If the request being processed defines :reqmeta:proxy metadata without credentials, the Proxy-Authorization header is removed unless it was originally defined for the same proxy URL.

      To remove proxy credentials while keeping the same proxy URL, remove the Proxy-Authorization header.

    • If the request has no :reqmeta:proxy metadata, or that metadata is a falsy value (e.g. None), the Proxy-Authorization header is removed.

      It is no longer possible to set a proxy URL through the :reqmeta:proxy metadata but set the credentials through the Proxy-Authorization header. Set proxy credentials through the :reqmeta:proxy metadata instead.

... (truncated)

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dependabot[bot] commented 1 year ago

Superseded by #231.