Horizon Alert
Summary of the vulnerability and why it matters
This advisory concerns a critical vulnerability in Dokploy, a self-hostable Platform as a Service, that could allow an authenticated user to execute arbitrary commands on the host system. The issue stems from incomplete validation of custom branch fields, which are later used in server-side Git commands.
- Command execution risk in self-hosted PaaS.
- Potential for unauthorized system control.
- Confirm relevance and exposure of Dokploy instances.
Attack Path
How an attacker could exploit the issue
An attacker with low-level authenticated access can first inject a malicious branch name into Dokploy's configuration. When a user initiates a deployment, Dokploy uses this stored, unsanitized branch name in system commands to interact with Git. This process can be manipulated to execute arbitrary commands on the host system.
- Requires authenticated access.
- Triggers deployment action.
- Arbitrary command execution risk.
Live Threat
Current exploitation, exposure, and threat context
A low-privileged authenticated user could execute arbitrary commands on the host system by providing a malicious branch name during a deployment request. This vulnerability could impact the confidentiality, integrity, and availability of the host system.
- Host system commands could be executed.
- Malicious branch names are accepted.
- Arbitrary host command execution is possible.
Operational Fix
Recommended remediation, mitigation, and detection steps
Platform as a Service (PaaS) deployments like Dokploy are typically managed by platform or infrastructure teams, with potential oversight from application owners if they utilize the PaaS for their deployments. The first step is to identify all instances of Dokploy, assess their exposure and criticality, and confirm the accountable owner for each. Planning remediation should then be based on this risk assessment, considering vendor coordination for patches and potential temporary risk reduction measures.
- Platform/Infrastructure teams own the issue.
- Verify Dokploy instances and exposure.
- Plan remediation based on risk assessment.