CVE-2022-23504 TYPO3 contains Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration

Medium 5.7 Published Updated

Authenticated administrators can expose sensitive internal information via YAML placeholder expressions in TYPO3 site configuration.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
Available

What is CVE-2022-23504?

CVE-2022-23504 is a medium-severity vulnerability in Typo3 Typo3, published on 14 Dec 2022. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official description

TYPO3 is an open source PHP based web content management system. Versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1 are subject to Sensitive Information Disclosure. Due to the lack of handling user-submitted YAML placeholder expressions in the site configuration backend module, attackers could expose sensitive internal information, such as system configuration or HTTP request messages of other website visitors. A valid backend user account having administrator privileges is needed to exploit this vulnerability. This issue has been patched in versions 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1.

Weakness: CWE-917, CWE-200

Which versions are affected by CVE-2022-23504?

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

PackageAffectedFixed in
typo3/cms-core PackagistFrom 10.0.010.4.33
typo3/cms-core PackagistFrom 10.0.010.4.33
typo3/cms-core PackagistFrom 11.0.011.5.20
typo3/cms-core PackagistFrom 11.0.011.5.20
typo3/cms-core PackagistFrom 12.0.012.1.1
typo3/cms-core PackagistFrom 12.0.012.1.1
9 more packages
typo3/cms-core PackagistFrom 9.0.09.5.38
typo3/cms-core PackagistFrom 9.0.09.5.38
typo3 BitnamiFrom 9.0.09.5.38, 10.4.33, 11.5.20, 12.1.1
typo3/cms PackagistFrom 10.0.010.4.33
typo3/cms PackagistFrom 10.0.010.4.33
typo3/cms PackagistFrom 11.0.011.5.20
typo3/cms PackagistFrom 11.0.011.5.20
typo3/cms PackagistFrom 12.0.012.1.1
typo3/cms PackagistFrom 12.0.012.1.1

Products include Typo3 Typo3.

How do I fix CVE-2022-23504?

Upgrade typo3/cms-core to a fixed version for your release line: 10.4.33, 11.5.20, 12.1.1 or 9.5.38.

Is CVE-2022-23504 being exploited?

There is no known exploitation of CVE-2022-23504 in the wild and no public exploit code.

All Typo3 Typo3 vulnerabilities

Sources

Also known as BIT-typo3-2022-23504, GHSA-8w3p-qh3x-6gjr.

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