Commit Graph

3 Commits

Author SHA1 Message Date
3e9c4c29b9 feat(ssh,telnet): add non-root user account for privesc + enum lure
Real Linux deployments (especially Ubuntu cloud images) ship a non-
root admin user; honeypots that only accept root logins are a tell.
Add a second account on both SSH and Telnet decoys, configurable
via service_cfg keys `user` / `user_password`, defaulting to
`ubuntu` / `admin` so the lure is live on every fresh deploy.

* `decnet/services/{ssh,telnet}.py` — two new ServiceConfigFields
  (`user` string, `user_password` secret) and matching env vars
  (`SSH_USER` / `SSH_USER_PASSWORD`, mirror for telnet) propagated
  via the compose fragment.
* `decnet/templates/ssh/entrypoint.sh` — runtime `useradd -m -s
  /usr/libexec/login-session -G sudo "$SSH_USER"` so the new user
  inherits the same sessrec pty-recording shell as root and lands
  in the sudo group. Privesc attempts (`sudo`) flow through the
  existing sudo-log capture; network-enum from the user's shell
  rides the recorded transcript.
* `decnet/templates/telnet/entrypoint.sh` — same useradd pattern
  (no sudo group — busybox+login telnet image has no sudo
  package; privesc rides `su -` which itself flows through the
  existing PAM auth-helper at /etc/pam.d/login).
* New tests for default + custom user / password + independence
  from root password. Updated the schema-keys assertion to match
  the four-field shape.

The new account is ALSO the natural home for the body-aware
predicates that were previously gated on root-only sessions —
attackers who land on `ubuntu@host` and run network-recon /
privesc commands now generate the same structured TTP-rule
events as root sessions did, captured via the same auth-helper
+ sessrec + sudo-log pipes.
2026-05-02 19:48:03 -04:00
8344b539c8 fix(ssh-template): drop sshd/pam_unix native chatter at rsyslog
OpenSSH's native syslog ("Failed password", "Connection from",
"Connection closed by …") and the pam_unix lines emitted from sshd's
PAM stack add no signal beyond what auth-helper already captures as
structured login_attempt events. They cluttered the dashboard and
arrived without an SD wrapper, forcing prose-IP heuristics in the
collector.

Add a `:programname, isequal, "sshd" stop` rule above the forwarding
actions in /etc/rsyslog.d/50-journal-forward.conf. pam_unix lines from
sshd inherit programname=sshd so the same rule covers both. sudo /
login / su pam_unix lines keep flowing (different programname), so
post-login privilege escalation telemetry is preserved.
2026-04-27 23:26:53 -04:00
ea95a009df refactor(tests): move flat tests/*.py into per-subsystem subfolders
Groups every flat test_*.py under the module it exercises, matching the
existing tests/{profiler,sniffer,prober,collector,correlation,cli,web,
topology,swarm,bus,updater,api,docker,geoip,...} layout. New folders:
services/, fleet/, config/, logging/, db/ (+ db/mysql/), telemetry/,
mutator/, core/.

Path-dependent __file__ references bumped an extra .parent in three
files that moved one level deeper:
- tests/sniffer/test_sniffer_ja3.py   (template path)
- tests/services/test_ssh_capture_emit.py (template path)
- tests/cli/test_mode_gating.py  (REPO root)
- tests/web/test_env_lazy_jwt.py (repo var)

Also drops two SQLite runtime artifacts (test_decnet.db-{shm,wal}) that
were leaking into the repo from a previous test run.

Fixes two test_service_isolation cases that patched asyncio.sleep (no
longer on the profiler main-loop hot path — same pre-existing bug I
fixed earlier in test_attacker_worker.py) by patching asyncio.wait_for
and passing interval=0.
2026-04-23 21:34:25 -04:00