CVE-2019-12204 Missing warning can lead to unauthenticated admin access in SilverStripe
Attackers can gain unauthenticated admin access if the install.php file remains in the public webroot, requiring manual removal or configuration changes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2019-12204?
CVE-2019-12204 is a critical authentication bypass vulnerability in Silverstripe Silverstripe, published on 25 Sep 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In SilverStripe through 4.3.3, a missing warning about leaving install.php in a public webroot can lead to unauthenticated admin access.
Which versions are affected by CVE-2019-12204?
4 open source packages ship an affected version, including silverstripe/cms and silverstripe/framework. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
silverstripe/cms Packagist | From 4.4.0 | 4.4.4 |
silverstripe/cms Packagist | From 4.4.0 | 4.4.4 |
silverstripe/framework Packagist | From 4.1.0 | 4.3.5 |
silverstripe/framework Packagist | From 4.1.0 | 4.3.5 |
Products include Silverstripe Silverstripe.
How do I fix CVE-2019-12204?
Upgrade silverstripe/cms to 4.4.4 or later.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2019-12204 being exploited?
There is no known exploitation of CVE-2019-12204 in the wild and no public exploit code.
Other vulnerabilities in Silverstripe Silverstripe
Sources
Also known as GHSA-cg8j-8w52-735v.