TYPO3 CMS vulnerable to Denial of Service in Page Error Handling
### Problem 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 [TYPO3-CORE-SA-2021-005](https://typo3.org/security/advisory/typo3-core-sa-2021-005) (CVE-2021-21359). ### Solution Update to TYPO3 versions 9.5.38 ELTS, 10.4.33 or 11.5.20 that fix the problem described above. ### References * [TYPO3-CORE-SA-2022-012](https://typo3.org/security/advisory/typo3-core-sa-2022-012)
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2022-23500US | high7.5 | — | ||
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 tr… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-23500.yamlWEB
- https://github.com/TYPO3/typo3PACKAGE
- https://github.com/TYPO3/typo3/commit/1e5f44417f031c9c5a9f9d09a6a841cf89aa7b7aWEB
- https://github.com/TYPO3/typo3/commit/73b46b6a627093112cfca4b895a198ca5e1970b7WEB
- https://github.com/TYPO3/typo3/security/advisories/GHSA-8c28-5mp7-v24hWEB
- https://nvd.nist.gov/vuln/detail/CVE-2022-23500ADVISORY
- https://typo3.org/security/advisory/typo3-core-sa-2022-012WEB
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