leviathan 102b117d4e Phase 7: PTRACE_TRACEME (CVE-2019-13272) + xt_compat (CVE-2021-22555)
Two famous 2017-2020-era LPEs to broaden 'THE tool for folks'
coverage. Both detect-only initially; exploit ports as follow-ups.

ptrace_traceme (CVE-2019-13272 — jannh @ Google P0, Jun 2019):
- Famous because works on default-config systems with no user_ns
  required — locked-down environments were still vulnerable.
- kernel_range thresholds: 4.4.182 / 4.9.182 / 4.14.131 / 4.19.58 /
  5.0.20 / 5.1.17 / mainline 5.2+
- Exploit shape (deferred): fork → child PTRACE_TRACEME → parent
  execve setuid binary → child ptrace-injects shellcode → root.
- Auditd: flag PTRACE_TRACEME (request 0) — false positives via
  gdb/strace; tune by exclusion.

netfilter_xtcompat (CVE-2021-22555 — Andy Nguyen @ Google P0):
- Bug existed since 2.6.19 (2006) — 15 years of latent vuln. Famous
  for that age + default-config reachability via unprivileged_userns.
- kernel_range thresholds: 4.4.266 / 4.9.266 / 4.14.230 / 4.19.185
  / 5.4.110 / 5.10.27 / 5.11.10 / mainline 5.12+
- detect() probes user_ns+net_ns clone; locked-down → PRECOND_FAIL.
- Exploit shape (deferred): heap massage via msg_msg + sk_buff cross-
  cache groom → kernel R/W → cred or modprobe_path overwrite. ~400
  lines port from Andy's public exploit.c.
- Auditd: unshare + iptables-style setsockopt + msgsnd — combined,
  the canonical exploit footprint.

Both wired into iamroot.c, core/registry.h, Makefile. CVES.md rows
added with detailed status.

Coverage by year now:
  2016: dirty_cow                              🟢
  2019: ptrace_traceme                         🔵
  2021: pwnkit, overlayfs, netfilter_xtcompat  🟢/🟢/🔵
  2022: dirty_pipe, cls_route4                 🟢/🔵
  2023: entrybleed                             🟢
  2024: nf_tables                              🔵
  2026: copy_fail family (×5)                  🟢

Module count: 14. Build clean (no warnings).
2026-05-16 20:47:24 -04:00

IAMROOT

A curated, actively-maintained corpus of Linux kernel LPE exploits — bundled with their detection signatures, patch status, and version ranges. Run it on a system you own (or are authorized to test) and it tells you which historical and recent CVEs that system is still vulnerable to, and — with explicit confirmation — gets you root.

 ██╗ █████╗ ███╗   ███╗██████╗  ██████╗  ██████╗ ████████╗
 ██║██╔══██╗████╗ ████║██╔══██╗██╔═══██╗██╔═══██╗╚══██╔══╝
 ██║███████║██╔████╔██║██████╔╝██║   ██║██║   ██║   ██║
 ██║██╔══██║██║╚██╔╝██║██╔══██╗██║   ██║██║   ██║   ██║
 ██║██║  ██║██║ ╚═╝ ██║██║  ██║╚██████╔╝╚██████╔╝   ██║
 ╚═╝╚═╝  ╚═╝╚═╝     ╚═╝╚═╝  ╚═╝ ╚═════╝  ╚═════╝    ╚═╝

⚠️ Authorized testing only. IAMROOT is a research and red-team tool. By using it you assert you have explicit authorization to test the target system. See docs/ETHICS.md.

What this is

Most Linux LPE references are dead repos, broken PoCs, or single-CVE deep-dives. IAMROOT is a living corpus: each CVE that lands here is empirically verified to work on the kernels it claims to target, CI-tested across a distro matrix, and ships with the detection signatures defenders need to spot it in their environment.

The same binary covers offense and defense:

  • iamroot --scan — fingerprint the host, report which bundled CVEs apply, and which are blocked by patches/config/LSM
  • iamroot --exploit <CVE> — run the named exploit (with --i-know authorization gate)
  • iamroot --detect-rules — dump auditd / sigma / yara rules for every bundled CVE so blue teams can drop them into their tooling
  • iamroot --mitigate — apply temporary mitigations for CVEs the host is vulnerable to (sysctl knobs, module blacklists, etc.)

Status

Active. Bootstrap phase as of 2026-05-16. First module (copy_fail_family) absorbed from the standalone DIRTYFAIL project and is verified working end-to-end on Ubuntu 26.04 + Alma 9 + Debian 13 with full AppArmor bypass + container escape demo + persistent backdoor mode.

See CVES.md for the full curated CVE list with patch status. See ROADMAP.md for the next planned modules.

Why this exists

The Linux kernel privilege-escalation space is fragmented:

  • linux-exploit-suggester / linpeas: suggest applicable exploits, don't run them
  • auto-root-exploit / kernelpop: bundle exploits, but largely stale, no CI, no defensive signatures
  • Per-CVE single-PoC repos: usually one author, often abandoned within months of release, often only one distro

IAMROOT's bet is that there's room for a single curated bundle that (1) actively maintains a small set of high-quality exploits across a multi-distro matrix, and (2) ships detection rules alongside each exploit so the same project serves both red and blue teams.

Architecture

Each CVE (or tightly-related family) is a module under modules/. Modules export a standard interface: detect(), exploit(), mitigate(), cleanup(), plus metadata describing affected kernel ranges, distro coverage, and CI test matrix.

Shared infrastructure (AppArmor bypass, su-exploitation primitives, fingerprinting, common utilities) lives in core/.

See docs/ARCHITECTURE.md for the module-loader design and how to add a new CVE.

Build & run

make                          # build all modules
sudo ./iamroot --scan         # what's this box vulnerable to?
sudo ./iamroot --scan --json  # machine-readable output for CI/SOC pipelines
sudo ./iamroot --detect-rules --format=sigma > rules.yml
sudo ./iamroot --exploit copy_fail --i-know  # actually run an exploit

Acknowledgments

Each module credits the original CVE reporter and PoC author in its NOTICE.md. IAMROOT is the bundling and bookkeeping layer; the research credit belongs to the people who found the bugs.

License

MIT — see LICENSE.

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