Allele Security Alert
Security Misconfiguration in Frontend Session Handling
TYPO3 CMS versions 8.5.0 to 8.7.26
TYPO3 CMS versions 9.0.0 to 9.5.7
TYPO3 CMS version 8.7.27
TYPO3 CMS version 9.5.8
Proof of concept
It has been discovered session data of properly authenticated and logged in frontend users is kept and transformed into an anonymous user session during the logout process. This way the next user using the same client application gains access to previous session data.
TYPO3 9.5.8 and 8.7.27 security releases published
TYPO3-CORE-SA-2019-018: Security Misconfiguration in Frontend Session Handling
[TYPO3-announce] Announcing TYPO3 v9.5.8 and v8.7.27 security releases
If there is any error in this alert or you wish a comprehensive analysis, let us know.
Last modified: July 11, 2019