#VU61611 Origin validation error in Twisted Web - CVE-2022-21712

Vulnerability identifier: #VU61611

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-21712

CWE-ID: CWE-346

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Twisted Web
Server applications / Web servers

Vendor: Twisted Matrix Labs

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to origin validation error in the "twited.web.RedirectAgent" and "twisted.web.BrowserLikeRedirectAgent" functions. A remote attacker attacker can trick the victim to click on a specially crafted link and obtain cookies and authorization headers.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Twisted Web: 11.1.0 - 21.7.0

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External links
https://github.com/twisted/twisted/commit/af8fe78542a6f2bf2235ccee8158d9c88d31e8e2
https://github.com/twisted/twisted/releases/tag/twisted-22.1.0
https://github.com/twisted/twisted/security/advisories/GHSA-92x2-jw7w-xvvx

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.