VYPR
Unrated severityNVD Advisory· Published Oct 2, 2020· Updated Sep 16, 2024

PHP parses encoded cookie names so malicious `__Host-` cookies can be sent

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.

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Affected products

83

Patches

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