leviathan
a8c8d5ef1f
Two new page-cache-write LPE modules, both ported from the public V12 security PoCs (github.com/v12-security/pocs): - dirtydecrypt (CVE-2026-31635): rxgk missing-COW in-place decrypt. rxgk_decrypt_skb() decrypts spliced page-cache pages before the HMAC check, corrupting the page cache of a read-only file. Sibling of Copy Fail / Dirty Frag in the rxrpc subsystem. - fragnesia (CVE-2026-46300): XFRM ESP-in-TCP skb_try_coalesce() loses the SHARED_FRAG marker, so the ESP-in-TCP receive path decrypts page-cache pages in place. A latent bug exposed by the Dirty Frag fix (f4c50a4034e6). Retires the old _stubs/fragnesia_TBD stub. Both wrap the PoC exploit primitive in the skeletonkey_module interface: detect/exploit/cleanup, an --active /tmp sentinel probe, --no-shell support, and embedded auditd + sigma rules. The exploit body runs in a forked child so the PoC's exit()/die() paths cannot tear down the dispatcher. The fragnesia port drops the upstream PoC's ANSI TUI (incompatible with a shared dispatcher); the exploit mechanism is reproduced faithfully. Linux-only code is guarded with #ifdef __linux__ so the modules still compile on non-Linux dev boxes. VERIFICATION: ported, NOT yet validated end-to-end on a vulnerable-kernel VM. The CVE fix commits are not pinned, so detect() is precondition-only (PRECOND_FAIL / TEST_ERROR, never a blind VULNERABLE) and --auto will not fire them unless --active confirms. macOS stub-path compiles verified locally; the Linux exploit-path build is covered by CI (build.yml, ubuntu) only. See each MODULE.md. Wiring: core/registry.h, skeletonkey.c, Makefile, CVES.md, ROADMAP.md.
51 lines
1.9 KiB
C
51 lines
1.9 KiB
C
/*
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* SKELETONKEY — module registry
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*
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* Global list of registered modules. Each family contributes via
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* register_<family>_modules() called from skeletonkey main() at startup.
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*/
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#ifndef SKELETONKEY_REGISTRY_H
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#define SKELETONKEY_REGISTRY_H
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#include "module.h"
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void skeletonkey_register(const struct skeletonkey_module *m);
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size_t skeletonkey_module_count(void);
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const struct skeletonkey_module *skeletonkey_module_at(size_t i);
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/* Find a module by name. Returns NULL if not found. */
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const struct skeletonkey_module *skeletonkey_module_find(const char *name);
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/* Each module family declares one of these in its public header. The
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* top-level skeletonkey main() calls them in order at startup. */
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void skeletonkey_register_copy_fail_family(void);
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void skeletonkey_register_dirty_pipe(void);
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void skeletonkey_register_entrybleed(void);
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void skeletonkey_register_pwnkit(void);
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void skeletonkey_register_nf_tables(void);
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void skeletonkey_register_overlayfs(void);
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void skeletonkey_register_cls_route4(void);
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void skeletonkey_register_dirty_cow(void);
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void skeletonkey_register_ptrace_traceme(void);
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void skeletonkey_register_netfilter_xtcompat(void);
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void skeletonkey_register_af_packet(void);
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void skeletonkey_register_fuse_legacy(void);
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void skeletonkey_register_stackrot(void);
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void skeletonkey_register_af_packet2(void);
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void skeletonkey_register_cgroup_release_agent(void);
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void skeletonkey_register_overlayfs_setuid(void);
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void skeletonkey_register_nft_set_uaf(void);
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void skeletonkey_register_af_unix_gc(void);
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void skeletonkey_register_nft_fwd_dup(void);
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void skeletonkey_register_nft_payload(void);
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void skeletonkey_register_sudo_samedit(void);
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void skeletonkey_register_sequoia(void);
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void skeletonkey_register_sudoedit_editor(void);
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void skeletonkey_register_vmwgfx(void);
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void skeletonkey_register_dirtydecrypt(void);
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void skeletonkey_register_fragnesia(void);
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#endif /* SKELETONKEY_REGISTRY_H */
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