CVE-2025-43527

// CVE-2025-43527 PoC - macOS Local Privilege Escalation // This is a conceptual PoC demonstrating the privilege escalation vulnerability // Note: This code is for educational purposes only #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <mach/mach.h> #include <sys/types.h> void check_current_privileges() { printf("[*] Current UID: %d\n", getuid()); printf("[*] Current GID: %d\n", getgid()); if (getuid() == 0) { printf("[+] Running as root! Privilege escalation successful.\n"); } else { printf("[-] Not running as root. Exploitation needed.\n"); } } // Exploitation function - demonstrates the vulnerability void exploit_privilege_escalation() { printf("[*] Attempting to exploit CVE-2025-43527...\n"); // The vulnerability allows a low-privilege app to gain root privileges // by exploiting improper permission checks in macOS system services // Step 1: Find vulnerable system service printf("[*] Step 1: Locating vulnerable service interface...\n"); // Step 2: Send malicious IPC message to system service printf("[*] Step 2: Sending crafted Mach message to service...\n"); // Step 3: Trigger privilege escalation via improper validation printf("[*] Step 3: Triggering privilege check bypass...\n"); // Step 4: Execute privileged operation printf("[*] Step 4: Executing privileged operation...\n"); // Step 5: Verify privilege escalation printf("[*] Step 5: Verifying elevated privileges...\n"); } int main() { printf("=== CVE-2025-43527 macOS Privilege Escalation PoC ===\n\n"); check_current_privileges(); printf("\n[*] Vulnerability: macOS permission check bypass in system services\n"); printf("[*] CVSS Score: 7.8 (HIGH)\n"); printf("[*] Attack Vector: Local (AV:L)\n"); printf("[*] Privileges Required: Low (PR:L)\n"); printf("[*] User Interaction: None (UI:N)\n\n"); exploit_privilege_escalation(); printf("\n[!] Note: This is a proof-of-concept demonstration.\n"); printf("[!] Apply Apple security update to mitigate this vulnerability.\n"); return 0; }

{"cve": {"id": "CVE-2025-43527", "sourceIdentifier": "[email protected]", "published": "2025-12-12T21:15:57.207", "lastModified": "2026-04-02T19:20:59.877", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.7.3, macOS Tahoe 26.2. 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-280"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*", "versionEndExcluding": "15.7.3", "matchCriteriaId": "E955E39D-E7C5-4951-BF50-08257F1BAC61"}]}]}], "references": [{"url": "https://support.apple.com/en-us/125886", "source": "[email protected]"}, {"url": "https://support.apple.com/en-us/125887", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}