CVE-2026-28821 macOS权限提升漏洞

/* * Conceptual PoC for Entitlement Verification Bypass * This snippet demonstrates the logic where a check might be bypassed. */ #include <stdio.h> #include <Security/Security.h> // Simulated function to check process entitlement bool check_process_entitlement(const char *entitlement) { // In the vulnerable version, this validation logic might be flawed // e.g., it fails to properly verify the signature or allows race conditions. printf("Checking entitlement: %s\n", entitlement); return false; // Validation fails but might be ignored } void exploit_simulation() { const char *target_entitlement = "com.apple.private.security.no-container"; // Vulnerability: The system proceeds despite failed validation if (!check_process_entitlement(target_entitlement)) { // Logic path that should be blocked but isn't printf("[+] Privilege Escalation: Bypassing entitlement check.\n"); // grant_elevated_privileges(); } else { printf("[-] Access denied.\n"); } } int main() { exploit_simulation(); return 0; }