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.
33 lines
1.1 KiB
Markdown
33 lines
1.1 KiB
Markdown
# NOTICE — fuse_legacy (CVE-2022-0185)
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## Vulnerability
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**CVE-2022-0185** — `legacy_parse_param` in fsconfig() doesn't validate
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`PAGE_SIZE` against the running `fs_context`'s key/value length →
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4 KB heap OOB write → cross-cache UAF → cred overwrite from a
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rootless container.
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## Research credit
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Discovered and disclosed by **William Liu** + **Jamie Hill-Daniel**
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(Crusaders of Rust), January 2022.
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Original writeup: <https://www.willsroot.io/2022/01/cve-2022-0185.html>
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Public PoC: <https://github.com/Crusaders-of-Rust/CVE-2022-0185>
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Upstream fix: mainline 5.16.2 (Jan 2022).
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Branch backports: 5.16.2 / 5.15.14 / 5.10.91 / 5.4.171.
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## SKELETONKEY role
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userns+mountns reach, `fsopen("cgroup2")` + double
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`fsconfig(FSCONFIG_SET_STRING, "source", ...)` fires the 4k OOB,
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msg_msg cross-cache groom in kmalloc-4k. MSG_COPY read-back detects
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whether the OOB landed in an adjacent neighbour — the sanity gate
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that prevents fake-success claims.
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`--full-chain` extends with forged m_list/m_ts overflow toward
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modprobe_path via the shared finisher.
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**Container-escape angle** — relevant to rootless docker/podman/snap.
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