CyberRota Analysis
AI-GeneratedThe vulnerability affects SeaweedFS versions prior to 4.24, specifically in the VolumeServer.FetchAndWriteNeedle function, which allows unauthenticated access to arbitrary remote endpoints via gRPC. This flaw can lead to the exposure of sensitive instance metadata and IAM credentials in cloud environments, as well as access to internal services. Organizations using SeaweedFS, particularly in cloud deployments, should prioritize upgrading to version 4.24 to mitigate this critical risk.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
SeaweedFS is a distributed storage system. Prior to 4.24, VolumeServer.FetchAndWriteNeedle in weed/server/volume_grpc_remote.go fetches a caller-supplied remote endpoint through weed/remote_storage/s3/s3_storage_client.go and writes the response into a needle. The RPC performs no authentication and no target validation, allowing anyone who can reach a volume server's gRPC port to cause requests to arbitrary hosts, including loopback, link-local, RFC 1918, and cloud metadata endpoints such as 169.254.169.254, and read the response. On cloud deployments, this can disclose instance metadata and IAM credentials and reach otherwise unexposed internal services. The volume server gRPC plane is unauthenticated by default, and configuring documented JWT signing keys does not protect this RPC. This issue is fixed in version 4.24.