PHP parses encoded cookie names so malicious `__Host-` cookies can be sent
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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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2020-7070US | medium5.3 | — | ||
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 t… | ||||
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references
External citations — patches, advisories, analysis.
- http://cve.circl.lu/cve/CVE-2020-8184ADVISORY
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00045.htmlADVISORY
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00067.htmlADVISORY
- https://bugs.php.net/bug.php?id=79699ADVISORY
- https://hackerone.com/reports/895727ADVISORY
- https://lists.debian.org/debian-lts-announce/2020/10/msg00008.htmlADVISORY
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/7EVDN7D3IB4EAI4D3ZOM2OJKQ5SD7K4E/WEB
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/P2J3ZZDHCSX65T5QWV4AHBN7MOJXBEKG/WEB
scry
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