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.
1.1 KiB
NOTICE — nft_set_uaf (CVE-2023-32233)
Vulnerability
CVE-2023-32233 — nf_tables anonymous-set deactivation skip →
slab UAF on the freed nft_set object exploitable via msg_msg
cross-cache groom in kmalloc-cg-512.
Research credit
Discovered and disclosed by Patryk Sondej and Piotr Krysiuk, May 2023.
Original advisory + writeup distributed via the OSS-Security list and an accompanying Google Drive PoC. Follow-up exploit and Crusaders-of-Rust analysis built on the public trigger.
Upstream fix: mainline 6.4-rc4 (commit c1592a89942e9, May 2023).
Branch backports: 6.3.2 / 6.2.15 / 6.1.28 / 5.15.111 / 5.10.180 /
5.4.243 / 4.19.283.
SKELETONKEY role
Hand-rolled nfnetlink batch: NEWTABLE → NEWCHAIN (base, LOCAL_OUT
hook) → NEWSET (ANON|EVAL|CONSTANT) → NEWRULE (nft_lookup
referencing the set by NFTA_LOOKUP_SET_ID) → DELSET → DELRULE
in the same transaction. msg_msg cg-512 spray with SKELETONKEY_SET
tags.
--full-chain forges a freed-set with set->data = kaddr at the
Sondej/Krysiuk reference offset (0x30) and drives a NEWSETELEM with
the modprobe_path payload bytes via the shared finisher.