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Security Database

CVE

CWE

Training

CVE-2021-21359

Published: Mar 23, 2021

Modified: Aug 3, 2024

PUBLISHED

CVSS v3.1

5.9

MEDIUM

Description

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.

Vendor	Product	Versions
TYPO3	TYPO3.CMS	affected `>= 9.0.0, <= 9.5.24` affected `>= 10.0.0, <= 10.4.13` affected `>= 11.0.0, <= 11.1.0`

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

References

https://packagist.org/packages/typo3/cms-core

x_refsource_MISC

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-4p9g-qgx9-397p

x_refsource_CONFIRM

https://typo3.org/security/advisory/typo3-core-sa-2021-005

x_refsource_MISC

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