CVE-2023-38499: typo3/cms-core Information Disclosure due to Out-of-scope Site Resolution
First published: Tue Jul 25 2023(Updated: )
> ### CVSS: `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N/E:F/RL:O/RC:C` (3.5) ### Problem In multi-site scenarios, enumerating the HTTP query parameters `id` and `L` allowed out-of-scope access to rendered content in the website frontend. For instance, this allowed visitors to access content of an internal site by adding handcrafted query parameters to the URL of a site that was publicly available. ### Solution Update to TYPO3 versions 9.5.42 ELTS, 10.4.39 ELTS, 11.5.30, 12.4.4 that fix the problem described above. > ℹ️ **Strong security defaults - Manual actions required** > Resolving sites by the `id` and `L` HTTP query parameters is now denied per default. However, it is still allowed to resolve a particular page by e.g. `https://example.org/?id=123&L=0` - as long as the `page-id 123` is in the scope of the site configured for the `base-url example.org`. > The new feature flag `security.frontend.allowInsecureSiteResolutionByQueryParameters` - which is disabled per default - can be used to reactivate the previous behavior. ### Credits Thanks to Garvin Hicking who reported this issue, and to TYPO3 core & security team members Oliver Hader and Benjamin Franzke who fixed the issue. ### References * [TYPO3-CORE-SA-2023-003](https://typo3.org/security/advisory/typo3-core-sa-2023-003)
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| composer/typo3/cms-core | >=12.0.0<12.4.4 | 12.4.4 |
| composer/typo3/cms-core | >=11.0.0<11.5.30 | 11.5.30 |
| composer/typo3/cms-core | >=10.0.0<10.4.39 | 10.4.39 |
| composer/typo3/cms-core | >=9.4.0<9.5.42 | 9.5.42 |
| Typo3 Typo3 | >=9.4.0<9.5.42 | |
| Typo3 Typo3 | >=10.0.0<10.4.39 | |
| Typo3 Typo3 | >=11.0.0<11.5.30 | |
| Typo3 Typo3 | >=12.0.0<12.4.4 |
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Reference Links
- https://github.com/TYPO3/typo3/security/advisories/GHSA-jq6g-4v5m-wm9r
- https://nvd.nist.gov/vuln/detail/CVE-2023-38499
- https://github.com/TYPO3/typo3/commit/702e2debd4b28f9cdb540544565fe6a8627ccb6a
- https://typo3.org/security/advisory/typo3-core-sa-2023-003
- https://github.com/advisories/GHSA-jq6g-4v5m-wm9r (Advisory)
Frequently Asked Questions
What is CVE-2023-38499?
CVE-2023-38499 is a vulnerability in the TYPO3 CMS that allows out-of-scope access to rendered content in the website frontend.
What is the severity of CVE-2023-38499?
The severity of CVE-2023-38499 is medium with a CVSS score of 5.3.
How does CVE-2023-38499 affect TYPO3?
CVE-2023-38499 affects TYPO3 versions 9.4.0 to 12.4.4, potentially allowing visitors to access content of an unauthorized website.
How can I fix CVE-2023-38499 in TYPO3?
To fix CVE-2023-38499, update TYPO3 to version 9.5.42, 10.4.39, 11.5.30, or 12.4.4.
Where can I find more information about CVE-2023-38499?
More information about CVE-2023-38499 can be found on the TYPO3 GitHub advisory page and the National Vulnerability Database (NVD) page.
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