CVE-2018-18850 Code injection in n/a
Authenticated users with deployment permissions can upload malicious YAML to execute arbitrary code with SYSTEM privileges on the Octopus Server.
- 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-2018-18850?
CVE-2018-18850 is a high-severity code injection vulnerability in Octopus Octopus Server, published on 31 Oct 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
In Octopus Deploy 2018.8.0 through 2018.9.x before 2018.9.1, an authenticated user with permission to modify deployment processes could upload a maliciously crafted YAML configuration, potentially allowing for remote execution of arbitrary code, running in the same context as the Octopus Server (for self-hosted installations by default, SYSTEM).
Which versions are affected by CVE-2018-18850?
It affects 1 product.
Products include Octopus Octopus Server.
How do I fix CVE-2018-18850?
No fix has been published for CVE-2018-18850 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-2018-18850 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-18850 exists.
Public exploit code: 1 Metasploit module.
Other vulnerabilities in Octopus Octopus Server
Sources
Also known as GHSA-483m-372f-vxc5.