CVE-2019-16699 sr_freecap for Typo3 RCE Vulnerability
Attackers can execute arbitrary Extbase actions leading to remote code execution via unsanitized input in the freeCap CAPTCHA extension for TYPO3.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-16699?
CVE-2019-16699 is a critical code injection vulnerability in n/a, published on 16 Oct 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The sr_freecap (aka freeCap CAPTCHA) extension 2.4.5 and below and 2.5.2 and below for TYPO3 fails to sanitize user input, which allows execution of arbitrary Extbase actions, resulting in Remote Code Execution.
Weakness: CWE-20
Which versions are affected by CVE-2019-16699?
4 open source packages ship an affected version, including sjbr/sr-freecap. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
sjbr/sr-freecap Packagist | All versions | 2.4.6 |
sjbr/sr-freecap Packagist | All versions | 2.4.6 |
sjbr/sr-freecap Packagist | From 2.5.0 | 2.5.3 |
sjbr/sr-freecap Packagist | From 2.5.0 | 2.5.3 |
Products include Sr Freecap Project Sr Freecap.
How do I fix CVE-2019-16699?
Upgrade sjbr/sr-freecap to a fixed version for your release line: 2.4.6 or 2.5.3.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2019-16699 being exploited?
There is no known exploitation of CVE-2019-16699 in the wild and no public exploit code.
Sources
Also known as GHSA-598p-rv6p-g7qc.