CVE-2021-41125 – scrapy

Package

Manager: pip
Name: scrapy
Vulnerable Version: >=0 <1.8.1 || >=2.0.0 <2.5.1

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00542 pctl0.66717

Details

Scrapy HTTP authentication credentials potentially leaked to target websites ### Impact If you use [`HttpAuthMiddleware`](http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.httpauth) (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. ### Patches 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. ### Workarounds If you cannot upgrade, set your HTTP authentication credentials on a per-request basis, using for example the [`w3lib.http.basic_auth_header`](https://w3lib.readthedocs.io/en/latest/w3lib.html#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`](http://doc.scrapy.org/en/latest/topics/downloader-middleware.html#module-scrapy.downloadermiddlewares.httpauth). ### For more information If you have any questions or comments about this advisory: * [Open an issue](https://github.com/scrapy/scrapy/issues) * [Email us](mailto:opensource@zyte.com)

Metadata

Created: 2021-10-06T17:46:22Z
Modified: 2024-10-26T22:53:21Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/10/GHSA-jwqp-28gf-p498/GHSA-jwqp-28gf-p498.json
CWE IDs: ["CWE-200", "CWE-522"]
Alternative ID: GHSA-jwqp-28gf-p498
Finding: F017
Auto approve: 1