5 Commits

Author	SHA1	Message	Date
KaraZajac	4d0a0e2443	modules: add nft_catchall (CVE-2026-23111, nf_tables catch-all abort UAF) ... The newest nftables LPE: a use-after-free in the nf_tables transaction- abort path. An inverted condition (a stray '!') in nft_map_catchall_activate() makes the abort path process active catch-all map elements instead of skipping them; a catch-all GOTO element drives a chain's use-count to zero so a following DELCHAIN frees it while the catch-all verdict still references it -> UAF, escalatable from an unprivileged user (userns + nftables) via modprobe_path/selinux_state ROP. Fixed upstream by f41c5d1; CWE-416, CVSS 7.8; not in CISA KEV. Public reproduction by FuzzingLabs. Takes the corpus to 43 modules / 38 CVEs. 🟡 reconstructed trigger, primitive-only, NOT VM-verified — same contract as nf_tables (CVE-2024-1086). detect() version-gates (catch-all elems ~5.13; Debian backports 6.1.164/6.12.73/6.18.10, 7.0+ inherits) AND requires unprivileged user_ns clone (else PRECOND_FAIL). exploit() forks an isolated child, builds a verdict map with a catch-all GOTO element, provokes an aborting batch to drive the abort-path UAF, observes slabinfo, and returns EXPLOIT_FAIL — the per-kernel leak + R/W + modprobe_path ROP is not bundled. kernel_range table verified drift-clean against the live Debian tracker (the 6.18 branch / 6.18.10 fix is the real forky/sid backport; the earlier 7.0.10 figure was wrong). Wired: registry, Makefile, safety rank (35), 6 detect() test rows (version + userns gating), CVE_METADATA.json + cve_metadata.c + KEV_CROSSREF.md (sorted insert, CWE-416/T1068/not-KEV), README + CVES.md + website counts (43/38) + yellow pill, RELEASE_NOTES v0.9.11, verify-vm target. Credit: FuzzingLabs + upstream fix f41c5d1. Version 0.9.11.	2026-06-08 17:42:19 -04:00
KaraZajac	ada56b0db3	modules: add cifswitch (CVE-2026-46243, Asim Manizada's CIFSwitch) ... CIFSwitch is the newest kernel-7-era LPE not already in the corpus: a ~19-year-old logic flaw in fs/smb/client/cifs_spnego.c where the cifs.spnego request-key type accepts key descriptions created by userspace (add_key(2)/request_key(2)) without verifying the request came from the in-kernel CIFS client. The description's authority-bearing fields (pid/uid/creduid/upcall_target) are trusted by the root cifs.upcall helper; with user+mount namespace tricks an unprivileged user coerces cifs.upcall into loading an attacker NSS module as root. Fixed upstream by 3da1fdf4efbc (merged 7.1-rc5); CWE-20; not in CISA KEV. Takes the corpus to 42 modules / 37 CVEs. 🟡 honest port — full chain not VM-verified. detect() gates on the kernel version (Debian backports 5.10.257/6.1.174/6.12.90/7.0.10) AND on the cifs userspace path (cifs.upcall / cifs.spnego request-key rule), so a vulnerable kernel without cifs-utils is PRECOND_FAIL not a false positive (override via SKELETONKEY_CIFS_ASSUME_PRESENT=1/0). exploit() fires only the non-destructive add_key(2) cifs.spnego probe (no upcall, loads nothing, revoked immediately) and returns EXPLOIT_FAIL without a euid-0 witness — the namespace+NSS root-pop is not bundled until VM-verified. --mitigate blocklists the cifs module; --cleanup reverts. Wired everywhere: registry, Makefile, safety rank (86), 6 detect() test rows (env-driven precondition override), CVE_METADATA.json + cve_metadata.c + KEV_CROSSREF.md (sorted insert, CWE-20/T1068/not-KEV), README + CVES.md + website counts (42/37) and a yellow module pill, RELEASE_NOTES v0.9.10, verify-vm target (sweep pending). Credit: Asim Manizada. Version 0.9.10.	2026-06-08 11:07:27 -04:00
KaraZajac	e457b22c1f	release v0.9.9: install.sh needs no sudo + CVE metadata drift fix ... install.sh never escalates to sudo. The installer defaulted to /usr/local/bin and fell back to `sudo mv`, prompting for a password on exactly the unprivileged accounts a privilege-escalation tool targets. It now uses /usr/local/bin only when already writable and otherwise installs to a per-user $HOME/.local/bin (honoring XDG_BIN_HOME), no sudo ever. An explicit SKELETONKEY_PREFIX is honored and errors rather than escalating. The documented one-liner prepends ~/.local/bin to PATH so it resolves on a fresh login, and the quickstart drops the misleading sudo from --scan / --audit / --auto. CVE metadata drift (the failing weekly drift-check): - CVE-2022-0492 (cgroup_release_agent) entered CISA KEV 2026-06-02; corpus now 13 of 36 modules cover KEV-listed CVEs. - CVE-2026-46333 (ptrace_pidfd) gained CWE-269 from NVD (was unclassified at module-add time). Refreshed CVE_METADATA.json, generated cve_metadata.c, and KEV_CROSSREF.md; README + website KEV counts and version bumped to 0.9.9.	2026-06-08 10:16:24 -04:00
KaraZajac	4454d8148e	release v0.9.4: drift unblock, fragnesia range fix, infra docs ... - Sync docs/CVE_METADATA.json + KEV_CROSSREF.md to match the hand-applied core/cve_metadata.c entries from v0.9.3. Nightly drift-check (red since 2026-05-25) now passes. Pintheft's CWE landed as CWE-787 from NVD (was NULL in the hand-applied entry). - Fix fragnesia (CVE-2026-46300) range table. Per NVD: bug entered at 5.11 SKBFL_SHARED_FRAG, vulnerable through 5.15.207 / 6.1.173 / 6.6.140 / 6.12.90 / 6.18.32 / 7.0.9, fixed at .208/.174/.141/ .91/.33/.10. Prior table had one entry {7,0,9} — off-by-one and missing every other backport. Added predates-5.11 introduction gate + test row. - Update tools/verify-vm/README.md to document the v0.9.x infra: mainline kernel pinning via kernel.ubuntu.com, per-module provisioner hooks, two-phase prep→reboot→verify with post-reboot kernel confirmation, GRUB_DEFAULT pinning. - Add curl fallback for NVD lookups in refresh-cve-metadata.py. Mirrors the CISA path's existing fallback. Prevents the silent Python urlopen hang seen during v0.9.3 prep (55-min stuck on CLOSE_WAIT socket; 30s timeout never fired).	2026-05-28 13:33:28 -04:00
KaraZajac	e4a600fef2	module metadata: CWE + ATT&CK + CISA KEV triage from federal sources ... Adds per-CVE triage annotations that turn SKELETONKEY's JSON output into something a SIEM/CTI/threat-intel pipeline can route on, and a KEV badge in --list so operators see at-a-glance which modules cover actively-exploited bugs. New tool — tools/refresh-cve-metadata.py: - Discovers CVEs by scanning modules/<dir>/ (no hardcoded list). - Fetches CISA's Known Exploited Vulnerabilities catalog (https://www.cisa.gov/.../known_exploited_vulnerabilities.csv). - Fetches CWE classifications from NVD's CVE API 2.0 (services.nvd.nist.gov), throttled to the anonymous 5-req/30s limit (~3 minutes for 26 CVEs). - Hand-curated ATT&CK technique mapping (T1068 default; T1611 for container escapes, T1082 for kernel info leaks — MITRE doesn't publish a clean CVE→technique feed). - Generates three outputs: docs/CVE_METADATA.json machine-readable, drift-checkable docs/KEV_CROSSREF.md human-readable table core/cve_metadata.c auto-generated lookup table - --check mode diffs the committed JSON against a fresh fetch for CI drift detection. New core API — core/cve_metadata.{h,c}: struct cve_metadata { cve, cwe, attack_technique, attack_subtechnique, in_kev, kev_date_added }; const struct cve_metadata *cve_metadata_lookup(const char *cve); Lookup keyed by CVE id, not module name — the metadata is properties of the CVE (two modules covering the same bug see the same metadata). The opsec_notes field stays on the module struct because exploit technique varies per-module (different footprints). Output surfacing: - --list: new KEV column shows ★ for KEV-listed CVEs. - --module-info (text): prints cwe / att&ck / 'in CISA KEV: YES (added YYYY-MM-DD)' between summary and operations. - --module-info / --scan (JSON): emits a 'triage' subobject with the full record, plus an 'opsec_notes' field at top level when set. Initial snapshot: - 10 of 26 modules cover KEV-listed CVEs (dirty_cow, dirty_pipe, pwnkit, sudo_samedit, ptrace_traceme, fuse_legacy, nf_tables, overlayfs, overlayfs_setuid, netfilter_xtcompat). - 24 of 26 have NVD CWE mappings; 2 unmapped (NVD has no weakness record for CVE-2019-13272 and CVE-2026-46300 yet). - All 26 mapped to an ATT&CK technique. Verification: - macOS local: 33 kernel_range + clean build, --module-info shows 'in CISA KEV: YES (added 2024-05-30)' for nf_tables, --list KEV column renders. - Linux (docker gcc:latest): 33 + 54 = 87 passes, 0 fails. Follow-up commits will add per-module OPSEC notes and --explain mode.	2026-05-23 10:38:01 -04:00