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CVE-2020-7070

Description

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23 and 7.4.x below 7.4.11, when PHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-8184 for more information.

POC

Reference

- http://cve.circl.lu/cve/CVE-2020-8184

- https://usn.ubuntu.com/4583-1/

- https://www.oracle.com/security-alerts/cpuoct2021.html

Github

No PoCs found on GitHub currently.