JANUS
Identity Inventory
Category ยท Identity
"Every identity โ€” human or not โ€” and its weaknesses."
The two-faced god of doorways โ€” Janus sees human and non-human identities alike, and every door they open.

The Problem

Non-human identities, reused local admins, default credentials, and Active Directory attack paths are the real fuel of lateral movement โ€” and they're invisible to vulnerability scans framed around CVEs. The accounts attackers actually ride through your estate never show up on a severity-sorted finding list.

What It Does

Janus builds a content-first inventory of every identity in the estate โ€” human and non-human โ€” via a 3-pass content sweep. It flags non-expiring, privileged, guest-enabled, and machine identities, then surfaces what attackers love most: credential reuse, default and blank credentials, AD attack-path exposure, and the coverage gaps (blind hosts) where it can't see at all.

Key Capabilities

  • Identity discovery + classification โ€” a 3-pass content sweep over plugin output finds human and non-human identities alike โ€” service accounts, machine identities, the NHI population no CMDB tracks.
  • Risk flags from identity plugins โ€” non-expiring passwords, privileged and guest-enabled accounts, default/blank credentials, and password-auth SSH, each flagged from specific plugin evidence.
  • Correlation layer โ€” names your crown-jewel identities (privileged accounts on KEV/critical-exposed hosts) and surfaces credentials reused across five or more hosts.
  • Provenance columns โ€” every identity claim traces back to the plugin that produced it, so IAM teams can verify before acting.
  • Coverage-gap headline โ€” blind and uncredentialed hosts lead the report rather than hiding in a footnote.
  • Gated tagging โ€” identity risk becomes taggable, routable work โ€” proposed and human-approved.

How It Works

Janus runs against the local navi.db built from your Tenable data: the vulns plugin family and output, plus specific identity plugins. All writes are proposed, human-approved, and logged.

Who It's For

IAM and identity-security teams who need visibility beyond the directory; AD admins hunting reuse and default creds; threat teams tracing the accounts attackers would actually use.

Proof Points

Discovers and classifies identities across a reference environment of 268 mixed RHEL/Windows assets โ€” including the non-human identities no CVE list mentions โ€” correlates privileged identities with KEV/critical exposure to name crown-jewel identities, and flags credentials reused across 5+ hosts. Signals depend on the relevant plugins being present; blind and uncredentialed hosts are called out, not hidden.

Works Better With

Janus is Fenrir's biggest feeder โ€” its credential weaknesses become the lateral-movement pivots in ranked attack paths โ€” and it drives Anubis ACR calibration so identity-critical assets get the priority they deserve.

Ask Janus which doorways are open in your estate โ€” both faces are watching.
THE HOUNDS โ€” human-in-the-loop AI security agents for Tenable VM / Tenable One Gated writes ยท Evidence-first ยท Honest about coverage