Horizon Alert
Summary of the vulnerability and why it matters
This advisory details a security vulnerability in Goploy, an open-source deployment system, that could allow a user with specific permissions to access or alter files in any project, including potentially rewriting critical configuration details. This could lead to broader system compromise during the next deployment cycle.
- Unauthorized access to project files and configurations.
- It affects core deployment operations and could lead to system compromise.
- Confirm Goploy usage and assess potential exposure to affected projects.
Attack Path
How an attacker could exploit the issue
An attacker with manager access in their own namespace can target files in any project. By manipulating project file IDs, they can read, write, or delete files, and importantly, alter a project's Git remote URL. This modification sets the stage for remote code execution during the next deployment when the system attempts to update the Git remote.
- Manager role in any namespace.
- Submit foreign project ID in API requests.
- Remote code execution on deploy.
Live Threat
Current exploitation, exposure, and threat context
A user with manager privileges could remotely execute arbitrary code on the server. This occurs when a user submits a project or project-file ID from another namespace in a request, allowing them to modify project files and, crucially, rewrite a project's git remote URL. This rewritten URL can then be exploited during the next deployment to execute arbitrary code on the server.
- Project files and configurations at risk.
- Unauthorized modification of project data.
- Server compromise via arbitrary code execution.
Operational Fix
Recommended remediation, mitigation, and detection steps
System owners and platform teams are likely responsible for addressing this vulnerability in the Goploy automation deployment system, as it impacts core deployment functionalities. The immediate first step is to identify all instances of Goploy within the environment, assess their exposure and criticality, and then coordinate with the vendor, as patches are not yet available.
- Platform and infrastructure teams own the issue.
- Verify Goploy instances and exposure.
- Plan for vendor coordination and mitigation.
