Headline
GHSA-8h4m-r4wm-xj7r: TYPO3 Arbitrary Code Execution via File List Module
Due to missing file extensions in $GLOBALS[‘TYPO3_CONF_VARS’][‘BE’][‘fileDenyPattern’], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.
Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).
The file extension *.shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension *.pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).
- GitHub Advisory Database
- GitHub Reviewed
- GHSA-8h4m-r4wm-xj7r
TYPO3 Arbitrary Code Execution via File List Module
High severity GitHub Reviewed Published Jun 7, 2024 to the GitHub Advisory Database • Updated Jun 7, 2024
Package
Affected versions
>= 8.0.0, < 8.7.23
>= 9.0.0, < 9.5.4
Patched versions
8.7.23
9.5.4
Due to missing file extensions in $GLOBALS[‘TYPO3_CONF_VARS’][‘BE’][‘fileDenyPattern’], backend users are allowed to upload *.phar, *.shtml, *.pl or *.cgi files which can be executed in certain web server setups. A valid backend user account is needed in order to exploit this vulnerability.
Derivatives of Debian GNU Linux are handling *.phar files as PHP applications since PHP 7.1 (for unofficial packages) and PHP 7.2 (for official packages).
The file extension *.shtml is bound to server side includes which are not enabled per default in most common Linux based distributions. File extension *.pl and *.cgi require additional handlers to be configured which is also not the case in most common distributions (except for /cgi-bin/ location).
References
- TYPO3/typo3@095ae4a
- TYPO3/typo3@9990278
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/2019-01-22-7.yaml
- https://typo3.org/security/advisory/typo3-core-sa-2019-008
Published to the GitHub Advisory Database
Jun 7, 2024