TYPO3 CMS vulnerable to Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration
> ### CVSS: `CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L/E:F/RL:O/RC:C` (5.3) ### Problem Due to the lack of handling user-submitted [YAML placeholder expressions](https://docs.typo3.org/m/typo3/reference-coreapi/main/en-us/Configuration/Yaml/YamlApi.html#custom-placeholder-processing) 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. ### Solution Update to TYPO3 versions 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1 that fix the problem described above. ### Credits Thanks to TYPO3 core & security team member Oliver Hader who reported and fixed the issue. ### References * [TYPO3-CORE-SA-2022-016](https://typo3.org/security/advisory/typo3-core-sa-2022-016)
beschreibt (1)
Zugehörige CVEs.
| ID | Schweregrad | ausnutzbar | ||
|---|---|---|---|---|
| CVE-2022-23504US | medium4.9 | — | ||
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… | ||||
Referenzen
Externe Belege — Patches, Meldungen, Analysen.
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2022-23504.yamlWEB
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2022-23504.yamlWEB
- https://github.com/TYPO3/typo3PACKAGE
- https://github.com/TYPO3/typo3/commit/d1e627ff7eef07bd94c53db861e85977b203900aWEB
- https://github.com/TYPO3/typo3/security/advisories/GHSA-8w3p-qh3x-6gjrWEB
- https://nvd.nist.gov/vuln/detail/CVE-2022-23504ADVISORY
- https://typo3.org/security/advisory/typo3-core-sa-2022-016WEB
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