anti
54b1fbed14
ServiceConfigField dataclass + BaseService.validate_cfg coerce/drop submitted service_cfg dicts against per-service typed schemas. SSH/HTTP/HTTPS now declare the keys they already read in compose_fragment, so the upcoming Inspector form has metadata to render from instead of hardcoded inputs per service.
84 lines
2.9 KiB
Python
84 lines
2.9 KiB
Python
import os
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from pathlib import Path
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from decnet.services.base import BaseService, ServiceConfigField
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TEMPLATES_DIR = Path(__file__).parent.parent / "templates" / "ssh"
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ARTIFACTS_ROOT = os.environ.get("DECNET_ARTIFACTS_ROOT", "/var/lib/decnet/artifacts")
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class SSHService(BaseService):
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"""
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Interactive OpenSSH server for general-purpose deckies.
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Replaced Cowrie emulation with a real sshd so fingerprinting tools and
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experienced attackers cannot trivially identify the honeypot. Auth events,
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sudo activity, and interactive commands are all forwarded to stdout as
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RFC 5424 via the rsyslog bridge baked into the image.
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service_cfg keys:
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password Root password (default: "admin")
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hostname Override container hostname
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"""
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name = "ssh"
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ports = [22]
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default_image = "build"
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config_schema = [
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ServiceConfigField(
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key="password",
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label="Root password",
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type="password",
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default="admin",
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secret=True,
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help="Plaintext root password for the in-container sshd.",
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),
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ServiceConfigField(
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key="hostname",
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label="Container hostname",
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type="string",
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help=(
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"Cosmetic override for the SSH banner/PS1 — keeps the decoy "
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"looking heterogeneous. Decky identity (NODE_NAME) is unaffected."
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),
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placeholder="e.g. mail-01.corp.local",
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),
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]
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def compose_fragment(
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self,
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decky_name: str,
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log_target: str | None = None,
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service_cfg: dict | None = None,
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) -> dict:
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cfg = service_cfg or {}
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env: dict = {
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"SSH_ROOT_PASSWORD": cfg.get("password", "admin"),
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# NODE_NAME is the authoritative decky identifier for log
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# attribution — matches the host path used for the artifacts
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# bind mount below. The container hostname (optionally overridden
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# via SSH_HOSTNAME) is cosmetic and may differ to keep the
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# decoy looking heterogeneous.
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"NODE_NAME": decky_name,
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}
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if "hostname" in cfg:
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env["SSH_HOSTNAME"] = cfg["hostname"]
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# File-catcher quarantine: bind-mount a per-decky host dir so attacker
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# drops (scp/sftp/wget) are mirrored out-of-band for forensic analysis.
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# The in-container path masquerades as systemd-coredump so `mount`/`df`
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# from inside the container looks benign.
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quarantine_host = f"{ARTIFACTS_ROOT}/{decky_name}/ssh"
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return {
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"build": {"context": str(TEMPLATES_DIR)},
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"container_name": f"{decky_name}-ssh",
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"restart": "unless-stopped",
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"cap_add": ["NET_BIND_SERVICE"],
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"environment": env,
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"volumes": [f"{quarantine_host}:/var/lib/systemd/coredump:rw"],
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}
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def dockerfile_context(self) -> Path:
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return TEMPLATES_DIR
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