CVE-2017-14251 TYPO3 Arbitrary Code Execution
Authenticated attackers can upload malicious PHP files to execute arbitrary code on TYPO3 servers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2017-14251?
CVE-2017-14251 is a high-severity vulnerability in Typo3 Typo3, published on 11 Sep 2017. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Unrestricted File Upload vulnerability in the fileDenyPattern in sysext/core/Classes/Core/SystemEnvironmentBuilder.php in TYPO3 7.6.0 to 7.6.21 and 8.0.0 to 8.7.4 allows remote authenticated users to upload files with a .pht extension and consequently execute arbitrary PHP code.
Weakness: CWE-434
Which versions are affected by CVE-2017-14251?
4 open source packages ship an affected version, including typo3/cms. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
typo3/cms Packagist | From 7.6.0 | 7.6.22 |
typo3/cms Packagist | From 7.6.0 | 7.6.22 |
typo3/cms Packagist | From 8.0.0 | 8.7.5 |
typo3/cms Packagist | From 8.0.0 | 8.7.5 |
Products include Typo3 Typo3.
How do I fix CVE-2017-14251?
Upgrade typo3/cms to a fixed version for your release line: 7.6.22 or 8.7.5.
Is CVE-2017-14251 being exploited?
There is no known exploitation of CVE-2017-14251 in the wild and no public exploit code.
Other vulnerabilities in Typo3 Typo3
- CVE-2009-0258 Indexed Search Engine for TYPO3 Command Execution via Metacharacter Injection
- CVE-2011-3583 Typo3 SQL injection due to faulty prepared statements
- CVE-2011-4628 Typo3 Authentication Bypass
- CVE-2023-24814 Persisted Cross-Site Scripting in Frontend Rendering in typo3
- CVE-2021-41113 Cross-Site-Request-Forgery in Backend URI Handling in Typo3
Sources
Also known as GHSA-fh4q-hxrw-cjqq.