Horizon Alert
Summary of the vulnerability and why it matters
This advisory details a critical security vulnerability found in the Mooncake software's Store REST service. The service improperly handles authentication, allowing unauthenticated access to read, inject, or delete cached data and objects. This could enable unauthorized manipulation of stored information.
- Unauthenticated access to store data and functions.
- Critical exposure if Mooncake is internet-facing.
- Confirm relevance and exposure for Mooncake deployments.
Attack Path
How an attacker could exploit the issue
An attacker can reach the vulnerable Mooncake Store REST service over the network because it binds to all available network interfaces without requiring any authentication. By sending specially crafted requests to exposed API routes, an attacker can interact with cached data, including reading, injecting, or deleting objects, and mounting custom segments. This allows for unauthorized access and manipulation of sensitive information and system components.
- Accessible over the network.
- Unauthenticated API endpoints.
- Read, modify, or delete data.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability could allow unauthenticated attackers to access, modify, or delete cached data, inject malicious data, or mount custom segments within the Mooncake Store REST service. This is possible because the service binds to all network interfaces and does not require authentication on its API routes.
- Cached KV data and stored objects at risk.
- Attackers can directly call exposed API routes.
- Unauthorized access and data manipulation.
Operational Fix
Recommended remediation, mitigation, and detection steps
The technical owner for this critical vulnerability likely resides within the team managing the Mooncake application or the platform team responsible for its deployment. The first practical step is to discover all instances of Mooncake, assess their network exposure and business criticality, and identify the accountable owner for each instance to prioritize remediation.
- Identify Mooncake instances and owners.
- Verify network exposure and criticality.
- Plan and coordinate remediation actions.
