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CVE-2022-23500— TYPO3 subject to Uncontrolled Recursion resulting in Denial of Service

Quick assessment

Affected
TYPO3 typo3
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

TYPO3是瑞士TYPO3协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 Core存在安全漏洞，攻击者利用该漏洞可以通过页面错误处理导致 TYPO3 Core 出现致命错误，从而触发拒绝服务。

CVSS 5.9 · Medium EPSS 0.70% · P52
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I. Basic Information for CVE-2022-23500

Vulnerability Information
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Vulnerability Title
TYPO3 subject to Uncontrolled Recursion resulting in Denial of Service
Source: CVE Program / CVE List V5
Vulnerability Description
TYPO3 is an open source PHP based web content management system. In versions prior to 9.5.38, 10.4.33, 11.5.20, and 12.1.1, 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. 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 vulnerability is very similar, but not identical, to the one described in CVE-2021-21359. This issue is patched in versions 9.5.38 ELTS, 10.4.33, 11.5.20 or 12.1.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未经控制的递归
Source: CVE Program / CVE List V5
Vulnerability Title
TYPO3 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
TYPO3是瑞士TYPO3协会的一套免费开源的内容管理系统(框架)(CMS/CMF)。 TYPO3 Core存在安全漏洞，攻击者利用该漏洞可以通过页面错误处理导致 TYPO3 Core 出现致命错误，从而触发拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
TYPO3 typo3 >= 9.0.0, < 9.5.38 -

II. Public POCs for CVE-2022-23500

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III. Intelligence Information for CVE-2022-23500

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Vendor Advisories for CVE-2022-23500 (1)

Same Patch Batch · TYPO3 · 2022-12-14 · 5 CVEs total

CVE-2022-23503 7.5 HIGH TYPO3 vulnerable to Arbitrary Code Execution via Form Framework
CVE-2022-23501 5.9 MEDIUM TYPO3 vulnerable to Improper Authentication in Frontend Login
CVE-2022-23504 5.7 MEDIUM TYPO3 contains Sensitive Information Disclosure via YAML Placeholder Expressions in Site C
CVE-2022-23502 5.4 MEDIUM TYPO3 contains Insufficient Session Expiration after Password Reset

IV. Related Vulnerabilities

Same product: typo3
Same vendor: TYPO3
Same weakness: CWE-674

V. Comments for CVE-2022-23500

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