CVE-2021-21248 Post-Auth Arbitrary Code execution via Groovy script injection
Authenticated users can execute arbitrary code on the server by injecting Groovy code into build parameters.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-21248?
CVE-2021-21248 is a critical code injection vulnerability in theonedev onedev, published on 15 Jan 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability involving the build endpoint parameters. InputSpec is used to define parameters of a Build spec. It does so by using dynamically generated Groovy classes. A user able to control job parameters can run arbitrary code on OneDev's server by injecting arbitrary Groovy code. The ultimate result is in the injection of a static constructor that will run arbitrary code. For a full example refer to the referenced GHSA. This issue was addressed in 4.0.3 by escaping special characters such as quote from user input.
Which versions are affected by CVE-2021-21248?
It affects 1 product.
Products include Onedev Project Onedev.
How do I fix CVE-2021-21248?
No fix has been published for CVE-2021-21248 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2021-21248 being exploited?
There is no known exploitation of CVE-2021-21248 in the wild and no public exploit code.
Other vulnerabilities in theonedev onedev
Sources
Also known as GHSA-gwp4-5498-hv5f.