CVE-2021-41125 Information

Description

Scrapy is a high-level web crawling and scraping framework for Python. If you use HttpAuthMiddleware (i.e. the http_user and http_pass spider attributes) for HTTP authentication all requests will expose your credentials to the request target. This includes requests generated by Scrapy components such as robots.txt requests sent by Scrapy when the ROBOTSTXT_OBEY setting is set to True or as requests reached through redirects. Upgrade to Scrapy 2.5.1 and use the new http_auth_domain spider attribute to control which domains are allowed to receive the configured HTTP authentication credentials. If you are using Scrapy 1.8 or a lower version and upgrading to Scrapy 2.5.1 is not an option you may upgrade to Scrapy 1.8.1 instead. If you cannot upgrade set your HTTP authentication credentials on a per-request basis using for example the w3lib.http.basic_auth_header function to convert your credentials into a value that you can assign to the Authorization header of your request instead of defining your credentials globally using HttpAuthMiddleware.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Reference

https://github.com/scrapy/scrapy/commit/b01d69a1bf48060daec8f751368622352d8b85a6 https://w3lib.readthedocs.io/en/latest/w3lib.html#w3lib.http.basic_auth_header https://github.com/scrapy/scrapy/security/advisories/GHSA-jwqp-28gf-p498 http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.httpauth https://lists.debian.org/debian-lts-announce/2022/03/msg00021.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

6.5