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Vulnerability · Published Dec 14, 2022 · Assigned by GitHub_M

CVE-2022-23500TYPO3 subject to Uncontrolled Recursion resulting in Denial of Service

Medium 5.9

In plain English

A medium-severity security flaw in typo3 from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.7%top 45.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

TYPO3 is an open source PHP based web content management system. In versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1, requesting invalid or non-existing resources via HTTP triggers the page error handler, which again could retrieve content to be shown as an error message from another page. This leads to a scenario in which the application is calling itself recursively - amplifying the impact of the initial attack until the limits of the web server are exceeded. This vulnerability is very similar, but not identical, to the one described in CVE-2021-21359. This issue is patched in versions 9.5.38 ELTS, 10.4.33, 11.5.20 or 12.1.1.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Packagisttypo3/cms10.4.33GHSA-8c28-5mp7-v24h
Packagisttypo3/cms11.5.20GHSA-8c28-5mp7-v24h
Packagisttypo3/cms-core9.5.38GHSA-8c28-5mp7-v24h
Packagisttypo3/cms-core10.4.33GHSA-8c28-5mp7-v24h
Packagisttypo3/cms-core11.5.20GHSA-8c28-5mp7-v24h

Affected products (as reported)

VendorProductVersions
TYPO3 typo3 >= 9.0.0, < 9.5.38>= 10.0.0, < 10.4.33>= 11.0.0, < 11.5.20>= 12.0.0, < 12.1.0

Weakness: CWE-674 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References