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GHSA-cw9j-q3vf-hrrv
No affected components available
Impact
When you send a request with the Authorization header to one domain, and the response asks to redirect to a different domain, Scrapy’s built-in redirect middleware creates a follow-up redirect request that keeps the original Authorization header, leaking its content to that second domain.
The right behavior would be to drop the Authorization header instead, in this scenario.
Patches
Upgrade to Scrapy 2.11.1.
If you are using Scrapy 1.8 or a lower version, and upgrading to Scrapy 2.11.1 is not an option, you may upgrade to Scrapy 1.8.4 instead.
Workarounds
If you cannot upgrade, make sure that you are not using the Authentication header, either directly or through some third-party plugin.
If you need to use that header in some requests, add "dont_redirect": True to the request.meta dictionary of those requests to disable following redirects for them.
If you need to keep (same domain) redirect support on those requests, make sure you trust the target website not to redirect your requests to a different domain.
Acknowledgements
This security issue was reported by @ranjit-git through huntr.com.
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the confidentiality of the information.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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