Detections
Analytics

TYPO3 8.7.0 < 8.7.51 ELTS / 9.0.0 < 9.5.40 ELTS / 10.0.0 < 10.4.36 / 11.0.0 < 11.5.23 / 12.0.0 < 12.2.0 XSS (TYPO3-CORE-SA-2023-001)

medium Nessus Plugin ID 171074

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Synopsis

The remote webserver is affected by a XSS vulnerability

Description

The version of TYPO3 installed on the remote host is prior to 8.7.0 < 8.7.51 ELTS / 9.0.0 < 9.5.40 ELTS / 10.0.0 < 10.4.36 / 11.0.0 < 11.5.23 / 12.0.0 < 12.2.0. It is, therefore, affected by a vulnerability as referenced in the TYPO3-CORE-SA-2023-001 advisory.

 - TYPO3 core component GeneralUtility::getIndpEnv() uses the unfiltered server environment variable PATH_INFO, which allows attackers to inject malicious content. In combination with the TypoScript setting config.absRefPrefix=auto, attackers can inject malicious HTML code into pages that have not yet been rendered and cached. As a result, injected values would be cached and delivered to other website visitors (persisted cross-site scripting). Individual code which relies on the resolved value of GeneralUtility::getIndpEnv('SCRIPT_NAME') and corresponding usages (as shown below) are vulnerable as well. GeneralUtility::getIndpEnv('PATH_INFO') GeneralUtility::getIndpEnv('SCRIPT_NAME') GeneralUtility::getIndpEnv('TYPO3_REQUEST_DIR') GeneralUtility::getIndpEnv('TYPO3_REQUEST_SCRIPT') GeneralUtility::getIndpEnv('TYPO3_SITE_PATH') GeneralUtility::getIndpEnv('TYPO3_SITE_SCRIPT') GeneralUtility::getIndpEnv('TYPO3_SITE_URL') Installations of TYPO3 versions 8.7 and 9.x are probably only affected when server environment variable TYPO3_PATH_ROOT is defined - which is the case if they were installed via Composer. Additional investigations confirmed that Apache and Microsoft IIS web servers using PHP-CGI (FPM, FCGI/FastCGI, or similar) are affected. There might be the risk that nginx is vulnerable as well. It was not possible to exploit Apache/mod_php scenarios. (CVE-2023-24814)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade to TYPO3 8.7.51 ELTS, 9.5.40 ELTS, 10.4.36, 11.5.23, 12.2.0 or later.

See Also

https://typo3.org/security/advisory/typo3-core-sa-2023-001

Plugin Details

Severity: Medium

ID: 171074

File Name: typo3_core-sa-2023-001.nasl

Version: 1.2

Type: remote

Family: CGI abuses

Published: 2/7/2023

Updated: 9/5/2023

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2023-24814

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:typo3:typo3

Required KB Items: www/PHP, installed_sw/TYPO3

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/7/2023

Vulnerability Publication Date: 2/7/2023

Reference Information

CVE: CVE-2023-24814