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CVE-2021-41125

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Date: October 6, 2021

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".

Language: Python

Severity Score

Severity Score

Weakness Type (CWE)

Exposure of Sensitive Information to an Unauthorized Actor

CWE-200

Insufficiently Protected Credentials

CWE-522

Top Fix

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Upgrade Version

Upgrade to version Scrapy - 1.8.1;Scrapy - 2.5.1

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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