- modules/entrybleed_cve_2023_0458/ (promoted out of _stubs):
- iamroot_modules.{c,h}: full EntryBleed primitive (rdtsc_start/end
+ prefetchnta + KASLR-slot timing sweep) wired into the standard
iamroot_module interface. x86_64 only; ARM/other gracefully
return IAMROOT_PRECOND_FAIL.
- detect(): reads /sys/.../vulnerabilities/meltdown to decide
KPTI status. Mitigation: PTI → VULNERABLE. Not affected → OK.
- exploit(): sweeps the 16MiB KASLR range, prints leaked kbase
(and KASLR slide). JSON-mode emits {"kbase":"0x..."} to stdout.
- entrybleed_leak_kbase_lib(off) declared as a public library
helper so future LPE chains needing a stage-1 leak can just
#include the module's header and call it.
- entry_SYSCALL_64 slot offset overridable via
IAMROOT_ENTRYBLEED_OFFSET (default 0x5600000 for lts-6.12.x).
- __always_inline fallback added since glibc/Linux-kernel macro
isn't universal; module now builds clean under macOS clangd lint
and on musl.
- iamroot.c registers entrybleed alongside the other families;
Makefile gains it as a separate object set.
Verified end-to-end on kctf-mgr (Debian 6.12.86):
iamroot --exploit entrybleed --i-know
→ [+] entrybleed: leaked kbase = 0xffffffff8d800000
This is the FIRST WORKING-EXPLOIT module in IAMROOT (5
copy_fail_family modules wrap existing code from DIRTYFAIL;
dirty_pipe is detect-only). EntryBleed is x86_64 stage-1 brick
that future chains can compose.
5.7 KiB
Roadmap
What's coming next, in priority order. Dates are aspirational, not commitments.
Phase 0 — Bootstrap (DONE as of 2026-05-16)
- Repo structure (modules/, core/, docs/, tools/, tests/)
- Absorbed DIRTYFAIL as the first module
(
modules/copy_fail_family/) - Top-level README, CVES.md, ROADMAP.md, docs/ARCHITECTURE.md, docs/ETHICS.md
- LICENSE (MIT)
- Private GitHub repo
Phase 1 — Make the bundling real (DONE 2026-05-16)
- Top-level
iamrootdispatcher CLI (iamroot.c) — module registry, route to module's detect/exploit - Module interface header (
core/module.h) — standardiamroot_modulestruct +iamroot_result_t(numerically aligned with copy_fail_family'sdf_result_tfor zero-cost bridging) core/registry.{c,h}— flat-array registry withfind_by_namemodules/copy_fail_family/iamroot_modules.{c,h}— bridge layer exposing 5 modules- Top-level
Makefilethat builds all modules into one binary - Smoke test:
iamroot --scan --jsonproduces ingest-ready JSON;iamroot --listprints the module inventory - Deferred to Phase 1.5: extract
apparmor_bypass.c,exploit_su.c,common.c,fcrypt.cintocore/(shared across families). Phase 1 keeps them inside copy_fail_family/src/ because there's only one family today; the extraction is mechanical and lands when a second family arrives.
Phase 2 — Add Dirty Pipe (CVE-2022-0847) — PARTIAL (DETECT done 2026-05-16)
Public PoC, well-understood, useful for completeness — IAMROOT without Dirty Pipe is incomplete as a "historical bundle." Affects kernels ≤5.16.11/≤5.15.25/≤5.10.102 so coverage is older deployments (worth bundling — many production boxes still run these).
modules/dirty_pipe_cve_2022_0847/directory promoted out of_stubs/core/kernel_range.{c,h}— branch-aware patched-version comparison (reusable by every future module)dirty_pipe_detect()— kernel version check against branch-backport thresholds (5.10.102 / 5.15.25 / 5.16.11 / 5.17+)- Detection rules:
auditd.rules(splice() syscall + passwd/shadow watches) andsigma.yml(non-root modification of sensitive files) - Registered in
iamroot --list/--scanoutput. Verified on kernel 6.12.86 → correctly reports OK (patched). - Phase 1.5 / Phase 2 followup: actual exploit. Needs
extraction of
find_passwd_uid_field+try_revert_passwd_page_cache+exploit_suintocore/so dirty_pipe can call them without duplicating the copy_fail_family helpers. - CI matrix: Ubuntu 20.04 with kernel 5.13 (vulnerable), Debian 11 with 5.10.0-8 (vulnerable), Debian 13 with 6.12.x (patched — should detect as OK)
Phase 3 — EntryBleed (CVE-2023-0458) as stage-1 leak brick (DONE 2026-05-16)
EntryBleed is not a standalone LPE. It's a kbase leak primitive that other modules can chain. Bundled because:
-
Stage-1 of any future "build-your-own LPE" workflow
-
Detection rules for KPTI side-channel attempts are useful for defenders
-
Already works empirically on lts-6.12.88 (verified 2026-05-16)
-
modules/entrybleed_cve_2023_0458/— leak primitive + detect -
Exposed as a library helper: other modules can call
entrybleed_leak_kbase_lib()(declared in iamroot_modules.h) -
Wired into iamroot.c registry;
iamroot --exploit entrybleed --i-knowproduces a kbase leak. Verified on kctf-mgr: leaked0xffffffff8d800000with KASLR slide0xc800000. -
entry_SYSCALL_64slot offset configurable viaIAMROOT_ENTRYBLEED_OFFSETenv var (default matches lts-6.12.x). Future enhancement: auto-detect via /boot/System.map or /proc/kallsyms if accessible.
Phase 4 — CI matrix
- Distro+kernel VM matrix in GitHub Actions (Ubuntu 20.04 / 22.04 / 24.04 / 26.04, Debian 11 / 12 / 13, Alma 8 / 9 / 10, Fedora 39 / 40 / 41)
- Each module's exploit runs against matched-vulnerable VMs and MUST land root; runs against patched VMs and MUST fail at detect step
- Nightly run; failures open issues automatically
Phase 5 — Detection signature export
iamroot --detect-rules --format=sigma— Sigma rules per CVE--format=yara— YARA rules for static detection of exploit binaries--format=auditd— auditd.rulessnippets--format=falco— Falco rule snippets- Sample SOC playbook in
docs/DETECTION_PLAYBOOK.md
Phase 6 — Mitigation mode
iamroot --mitigatewalks the host's vulnerabilities, applies temporary sysctl / module-blacklist / LSM workarounds- Per-CVE rollback procedure if the mitigation breaks something
- Idempotent: running twice is safe
Phase 7+ — More modules
Backfill of historical and recent LPEs as time allows:
- CVE-2021-3493 — overlayfs nested-userns LPE
- CVE-2021-4034 — Pwnkit (pkexec env handling)
- CVE-2022-2588 — net/sched route4 dead UAF
- CVE-2023-2008 — vmwgfx OOB write
- CVE-2024-1086 — netfilter nf_tables UAF
- Fragnesia (if it lands as a CVE)
- Anything we ourselves disclose — bundled AFTER upstream patch ships (responsible-disclosure-first)
Non-goals
- No 0-day shipment. Everything in IAMROOT is post-patch.
- No automated mass-targeting. No host-list mode. No automatic pivoting.
- No persistence beyond
--exploit-backdoor's/etc/passwdoverwrite, which is overt and easily detected by any auditd rule we ship ourselves. Persistence-as-evasion is out of scope. - No container-runtime escapes unless they cleanly chain to host-root.
- No Windows / macOS / non-Linux targets. Focus is the moat.