GHSA-m392-235j-9r7r

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GHSA-m392-235j-9r7r

Summary: TYPO3 CMS vulnerable to User Enumeration via Response Timing

Details: > ### Meta > * CVSS: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C` (4.9) ### Problem It has been discovered that observing response time during user authentication (backend and frontend) can be used to distinguish between existing and non-existing user accounts. Extension authors of 3rd party TYPO3 extensions providing a custom authentication service should check if the extension is affected by the described problem. Affected extensions must implement new `MimicServiceInterface::mimicAuthUser`, which simulates corresponding times regular processing would usually take. ### Solution Update to TYPO3 version 7.6.58 ELTS, 8.7.48 ELTS, 9.5.37 ELTS, 10.4.32 or 11.5.16 that fix the problem described above. ### Credits Thanks to Vautia who reported this issue and to TYPO3 core & security team members Oliver Hader who fixed the issue. ### References * [TYPO3-CORE-SA-2022-007](https://typo3.org/security/advisory/typo3-core-sa-2022-007) * [Vulnerability Report on huntr.dev](https://huntr.dev/bounties/7d519735-2877-4fad-bd77-accde3e290a7/) (embargoed +30 days)

References: https://github.com/TYPO3/typo3/security/advisories/GHSA-m392-235j-9r7r, https://nvd.nist.gov/vuln/detail/CVE-2022-36105, https://github.com/TYPO3/typo3/commit/f0fc9c4cd7c38207c30dd158de53ee5d9d6f41a2, https://github.com/TYPO3/typo3/commit/f8b83ce15d4ea275a5a5e564e5d324242f7937b6, https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2022-36105.yaml, https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-36105.yaml, https://github.com/TYPO3/typo3, https://typo3.org/security/advisory/typo3-core-sa-2022-007