Headline
GHSA-m392-235j-9r7r: TYPO3 CMS vulnerable to User Enumeration via Response Timing
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
- Vulnerability Report on huntr.dev (embargoed +30 days)
TYPO3 CMS vulnerable to User Enumeration via Response Timing
Moderate severity GitHub Reviewed Published Sep 16, 2022 in TYPO3/typo3 • Updated Sep 16, 2022
Package
Affected versions
>= 10.0.0, < 10.4.32
>= 11.0.0, < 11.5.16
Patched versions
10.4.32
11.5.16
>= 7.0.0, < 7.6.58
>= 8.0.0, < 8.7.48
>= 9.0.0, < 9.5.37
>= 10.0.0, < 10.4.32
>= 11.0.0, < 11.5.16
7.6.58
8.7.48
9.5.37
10.4.32
11.5.16
Description
Severity
CVSS base metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Weaknesses
GHSA ID
GHSA-m392-235j-9r7r
Source code
Related news
TYPO3 is an open source PHP based web content management system released under the GNU GPL. 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. 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 this problem. There are no known workarounds for this issue.