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.
968 B
968 B
NOTICE — nft_fwd_dup (CVE-2022-25636)
Vulnerability
CVE-2022-25636 — nft_fwd_dup_netdev_offload writes
flow->rule->action.entries[ctx->num_actions] without bounds-checking
against the allocated array size → heap OOB write in kmalloc-512.
Research credit
Discovered and disclosed by Aaron Adams (NCC Group), February 2022.
Original writeup: https://research.nccgroup.com/2022/03/02/exploit-engineering-attacking-the-linux-kernel/
Upstream fix: mainline 5.17 (commit fa54fee62954, Feb 2022).
Branch backports: 5.16.11 / 5.15.25 / 5.10.102 / 5.4.181.
SKELETONKEY role
userns+netns reach. Hand-rolled nfnetlink batch: NEWTABLE →
NEWCHAIN with NFT_CHAIN_HW_OFFLOAD → NEWRULE with 16 immediates
- fwd, overruning
action.entries[1]. msg_msg cross-cache groom into kmalloc-512 withSKELETONKEY_FWDtags.
--full-chain extends with stride-seeded forged action_entry
overwrite aimed at modprobe_path via the shared finisher.