Uncontrolled Recursion in TYPO3 - CVE-2021-21359
Published: March 16, 2021
Vulnerability identifier: #VU51510
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-21359
CWE-ID: CWE-674
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
TYPO3
TYPO3
Software vendor:
TYPO3
TYPO3
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to 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. A remote attacker can cause a denial of service condition on the target system.
Remediation
Install updates from vendor's website.