leviathan
9593d90385
Breaking change. Tool name, binary name, function/type names,
constant names, env vars, header guards, file paths, and GitHub
repo URL all rebrand IAMROOT → SKELETONKEY.
Changes:
- All "IAMROOT" → "SKELETONKEY" (constants, env vars, enum
values, docs, comments)
- All "iamroot" → "skeletonkey" (functions, types, paths, CLI)
- iamroot.c → skeletonkey.c
- modules/*/iamroot_modules.{c,h} → modules/*/skeletonkey_modules.{c,h}
- tools/iamroot-fleet-scan.sh → tools/skeletonkey-fleet-scan.sh
- Binary "iamroot" → "skeletonkey"
- GitHub URL KaraZajac/IAMROOT → KaraZajac/SKELETONKEY
- .gitignore now expects build output named "skeletonkey"
- /tmp/iamroot-* tmpfiles → /tmp/skeletonkey-*
- Env vars IAMROOT_MODPROBE_PATH etc. → SKELETONKEY_*
New ASCII skeleton-key banner (horizontal key icon + ANSI Shadow
SKELETONKEY block letters) replaces the IAMROOT banner in
skeletonkey.c and README.md.
VERSION: 0.3.1 → 0.4.0 (breaking).
Build clean on Debian 6.12.86. `skeletonkey --version` → 0.4.0.
All 24 modules still register; no functional code changes — pure
rename + banner refresh.
28 lines
1.0 KiB
Markdown
28 lines
1.0 KiB
Markdown
# NOTICE — ptrace_traceme (CVE-2019-13272)
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## Vulnerability
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**CVE-2019-13272** — `PTRACE_TRACEME` on a parent that subsequently
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execve's a setuid binary leaves the now-elevated process traceable by
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the unprivileged child → cred escalation via ptrace shellcode inject.
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## Research credit
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Discovered by **Jann Horn** (Google Project Zero), June 2019.
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Project Zero issue: <https://bugs.chromium.org/p/project-zero/issues/detail?id=1903>
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Upstream fix: mainline 5.1.17 (commit `6994eefb0053`, June 2019).
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Branch backports: 4.4.182 / 4.9.182 / 4.14.131 / 4.19.58 / 5.0.20 / 5.1.17.
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## SKELETONKEY role
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Full jannh-style chain: fork → child `PTRACE_TRACEME` → child
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sleep+attach → parent `execve` setuid bin (pkexec/su/passwd
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auto-selected) → child wins stale `ptrace_link` → POKETEXT x86_64
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shellcode → root sh.
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x86_64-only; ARM/other archs return PRECOND_FAIL cleanly. No exotic
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preconditions — doesn't need userns. Works on default-config systems
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including locked-down environments without unprivileged_userns_clone.
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