Potential Remote Code Execution in TYPO3 with mediace extension
Meta
- CVSS:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C(9.1)- CWE-325, CWE-20, CWE-200, CWE-502
Problem
It has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. This allows to inject arbitrary data having a valid cryptographic message authentication code (HMAC-SHA1) and can lead to various attack chains as described below.
- TYPO3-CORE-SA-2020-007, CVE-2020-15099: Potential Privilege Escalation
- the database server used for a TYPO3 installation must be accessible for an attacker (either via internet or shared hosting network)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C(7.5, high)
- TYPO3-CORE-SA-2016-013, CVE-2016-5091: Insecure Deserialization & Remote Code Execution
- an attacker must have access to at least one Extbase plugin or module action in a TYPO3 installation
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C(9.1, critical)
The overall severity of this vulnerability is critical (9.1) based on mentioned attack chains and the fact it does not require any privileges.
Solution
In case the extension is not used and required at all, it is suggested to uninstall and remove it from the system completely. Otherwise, an updated version 7.6.5 is available from the TYPO3 extension manager, Packagist and the TYPO3 extension repository:
- https://extensions.typo3.org/extension/download/mediace/7.6.5/zip/
- https://packagist.org/packages/friendsoftypo3/mediace#7.6.5
As a precautionary measure it is advised to change encryptionKey and database credentials in typo3conf/LocalConfiguration.php.
Credits
Thanks to TYPO3 security team member Oliver Hader who reported and fixed the issue.
References
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | friendsoftypo3/mediace | >= 7.6.2, < 7.6.5 | 7.6.5 |
References
- https://github.com/FriendsOfTYPO3/mediace/security/advisories/GHSA-4h44-w6fm-548g
- https://nvd.nist.gov/vuln/detail/CVE-2020-15086
- https://github.com/FriendsOfTYPO3/mediace/pull/31
- https://github.com/FriendsOfTYPO3/mediace/commit/fa29ffd3e8b275782a8600d2406e1b1e5e16ae75
- https://github.com/FriendsOfPHP/security-advisories/blob/master/friendsoftypo3/mediace/CVE-2020-15086.yaml
- https://github.com/FriendsOfTYPO3/mediace
- https://typo3.org/security/advisory/typo3-ext-sa-2020-014
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-20, CWE-200, CWE-325, CWE-502- Platform
- Composer
- Package
friendsoftypo3/mediace- Disclosed
- 29.07.2020
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-4h44-w6fm-548g - CC BY 4.0
Vulnerability history: friendsoftypo3/mediace
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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