CVE-2025-43472

// CVE-2025-43472 PoC - macOS Local Privilege Escalation // Note: This is a conceptual PoC for educational purposes only // Actual exploitation requires specific vulnerable conditions #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <sys/stat.h> // Simulated vulnerable function - input validation bypass int vulnerable_input_check(const char* user_input) { // VULNERABLE: Insufficient input sanitization // Missing: boundary checks, privilege verification, path canonicalization if (user_input == NULL) { return -1; } // Simple check without proper validation if (strlen(user_input) < 1024) { return 0; // Passes check without proper validation } return -1; } // Simulated privilege escalation trigger int trigger_privilege_escalation(const char* input) { int result = vulnerable_input_check(input); if (result == 0) { // VULNERABLE: Should verify caller privileges before granting elevated access // Missing: setuid check, capability verification, sandbox inspection printf("[*] Attempting privileged operation...\n"); // Simulate gaining root privileges through validation bypass if (geteuid() != 0) { printf("[+] Privilege escalation condition met\n"); // In real exploit: system call to gain root return 1; } } return 0; } int main(int argc, char* argv[]) { printf("CVE-2025-43472 PoC - macOS Input Validation Privilege Escalation\n"); printf("Current UID: %d, EUID: %d\n", getuid(), geteuid()); if (argc > 1) { printf("[*] Triggering vulnerable code path...\n"); int result = trigger_privilege_escalation(argv[1]); if (result == 1) { printf("[+] Exploitation conditions satisfied\n"); printf("[!] In real scenario: root shell would be obtained\n"); } } else { printf("Usage: %s <malicious_input>\n", argv[0]); } return 0; } // Mitigation: // 1. Apply macOS security updates (Sequoia 15.7.2, Sonoma 14.8.2, Tahoe 26.1) // 2. Implement proper input sanitization and validation // 3. Use setuid() verification before privileged operations // 4. Enable System Integrity Protection (SIP)

{"cve": {"id": "CVE-2025-43472", "sourceIdentifier": "[email protected]", "published": "2025-11-04T02:15:51.810", "lastModified": "2026-04-02T19:20:51.883", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A validation issue was addressed with improved input sanitization. This issue is fixed in macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1. An app may be able to gain root privileges."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-20"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionEndExcluding": "14.8.2", "matchCriteriaId": "84A2783A-5B53-4DAB-80C4-8D62E332802A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionStartIncluding": "15.0", "versionEndExcluding": "15.7.2", "matchCriteriaId": "4BE8199E-63D1-496C-B107-52853CFC2311"}]}]}], "references": [{"url": "https://support.apple.com/en-us/125634", "source": "[email protected]"}, {"url": "https://support.apple.com/en-us/125635", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/125636", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}