CVE-2021-21359: Denial of Service in Page Error Handling
TYPO3 · TYPO3.CMS
Affected: TYPO3.CMS · Exploitation: possible (1 to 10%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 77% of scored CVEs
DescriptionCVE.org
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.25, 10.4.14, 11.1.1 requesting invalid or non-existing resources via HTTP triggers the page error handler which again could retrieve content to be shown as 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 is fixed in versions 9.5.25, 10.4.14, 11.1.1.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- TYPO3 · TYPO3.CMS>= 9.0.0, <= 9.5.24; >= 10.0.0, <= 10.4.13; >= 11.0.0, <= 11.1.0
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Possible (1 to 10%). EPSS between 1% and 10%.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- TYPO3
- Published
- March 2021
CoverageNo articles yet
No CyberSIXT article names CVE-2021-21359 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.