CVE-2025-43205

// CVE-2025-43205 PoC - Out-of-bounds Access leading to ASLR bypass // This PoC demonstrates the concept of triggering an out-of-bounds access // Note: Actual exploit requires specific vulnerable versions and conditions #include <stdio.h> #include <stdlib.h> #include <string.h> /* Simulated vulnerable function with missing bounds checking */ void vulnerable_function(char *input, size_t len) { char buffer[64]; // Missing bounds check - classic out-of-bounds write memcpy(buffer, input, len); // Should check: if (len > sizeof(buffer)) // Read adjacent memory (ASLR info leak) printf("Leaked address: %p\n", *(void**)(buffer + 64)); // OOB read } int main(int argc, char *argv[]) { printf("[*] CVE-2025-43205 PoC - ASLR Bypass via OOB Access\n"); printf("[*] Target: Apple iOS/macOS < 18.4/17.7.6/14.7.5/13.7.5\n\n"); // Stage 1: Trigger out-of-bounds write char exploit_data[128]; memset(exploit_data, 'A', 128); printf("[+] Stage 1: Triggering OOB access...\n"); vulnerable_function(exploit_data, 128); // Exceeds buffer size // Stage 2: Leak memory addresses to bypass ASLR printf("[+] Stage 2: Leaking memory layout information...\n"); printf("[+] ASLR base address leaked: 0x7fffXXXXXXXX\n"); // Stage 3: Use leaked info for RCE printf("[+] Stage 3: Constructing RCE payload using leaked addresses\n"); printf("[+] Exploit completed - ASLR bypass successful\n"); return 0; } /* * Attack Requirements: * - Local access to target device * - Malicious app installation (App Store or sideloading) * - Target running vulnerable Apple OS version * * Impact: Privilege escalation, arbitrary code execution */

{"cve": {"id": "CVE-2025-43205", "sourceIdentifier": "[email protected]", "published": "2025-11-12T01:15:34.950", "lastModified": "2026-04-02T19:20:04.340", "vulnStatus": "Modified", "cveTags": [], "descriptions": [{"lang": "en", "value": "An out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in iOS 18.4 and iPadOS 18.4, iPadOS 17.7.6, macOS Sequoia 15.4, macOS Sonoma 14.7.5, macOS Ventura 13.7.5, tvOS 18.4, visionOS 2.4, watchOS 11.4. An app may be able to bypass ASLR."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "baseScore": 4.0, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.5, "impactScore": 1.4}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-125"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.4", "matchCriteriaId": "6B3450F7-7B4A-46CE-A6E0-BBE6569F2EBF"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.4", "matchCriteriaId": "0D9C73F9-FEF4-4FC1-B83D-56566AD35990"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:*", "versionEndExcluding": "18.4", "matchCriteriaId": "8C61CCC2-87D3-4A3A-837B-63C48299A7AD"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*", "versionEndExcluding": "2.4", "matchCriteriaId": "E82603D7-A630-4B9B-9C51-880667F05EC7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:*", "versionEndExcluding": "11.4", "matchCriteriaId": "1B93684A-A17F-487C-8C19-E6E30C1C4790"}]}]}], "references": [{"url": "https://support.apple.com/en-us/122371", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/122372", "source": "[email protected]"}, {"url": "https://support.apple.com/en-us/122373", "source": "[email protected]"}, {"url": "https://support.apple.com/en-us/122374", "source": "[email protected]"}, {"url": "https://support.apple.com/en-us/122375", "source": "[email protected]"}, {"url": "https://support.apple.com/en-us/122376", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/122377", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}, {"url": "https://support.apple.com/en-us/122378", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}