CVE-2023-47127 Weak Authentication in Session Handling in typo3/cms-core

Medium 4.2 Published Updated

Attackers can reuse session cookies across different sites in a multi-site TYPO3 installation to bypass authentication and access unauthorized areas.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2023-47127?

CVE-2023-47127 is a medium-severity authentication bypass vulnerability in Typo3 Typo3, published on 14 Nov 2023. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

TYPO3 is an open source PHP based web content management system released under the GNU GPL. In typo3 installations there are always at least two different sites. Eg. first.example.org and second.example.com. In affected versions a session cookie generated for the first site can be reused on the second site without requiring additional authentication. This vulnerability has been addressed in versions 8.7.55, 9.5.44, 10.4.41, 11.5.33, and 12.4.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Weakness: CWE-287, CWE-302

Which versions are affected by CVE-2023-47127?

11 open source packages ship an affected version, including typo3/cms-core and typo3. It affects 1 product.

PackageAffectedFixed in
typo3/cms-core PackagistFrom 10.0.010.4.41
typo3/cms-core PackagistFrom 10.0.010.4.41
typo3/cms-core PackagistFrom 11.0.011.5.33
typo3/cms-core PackagistFrom 11.0.011.5.33
typo3/cms-core PackagistFrom 12.0.012.4.8
typo3/cms-core PackagistFrom 12.0.012.4.8
5 more packages
typo3/cms-core PackagistFrom 8.0.08.7.55
typo3/cms-core PackagistFrom 8.0.08.7.55
typo3/cms-core PackagistFrom 9.0.09.5.44
typo3/cms-core PackagistFrom 9.0.09.5.44
typo3 BitnamiFrom 8.0.08.7.55, 9.5.44, 10.4.41, 11.5.33, 12.4.8

Products include Typo3 Typo3.

How do I fix CVE-2023-47127?

Upgrade typo3/cms-core to a fixed version for your release line: 10.4.41, 11.5.33, 12.4.8 or 8.7.55.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2023-47127 being exploited?

There is no known exploitation of CVE-2023-47127 in the wild and no public exploit code.

All Typo3 Typo3 vulnerabilities

Sources

Also known as BIT-typo3-2023-47127, GHSA-3vmm-7h4j-69rm.

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