CVE-2025-20732

// CVE-2025-20732 PoC Concept - MediaTek WLAN AP Driver OOB Write // This is a conceptual proof of concept for educational purposes only #include <stdio.h> #include <stdlib.h> #include <string.h> #include <stdint.h> // Simulated vulnerable function with incorrect bounds check void process_neighbor_report(uint8_t* data, size_t length) { uint8_t buffer[256]; uint16_t report_length; // Vulnerable: Incorrect bounds check if (length > 255) { // Should be length > 256 or use <= for proper check printf("[-] Error: Report too long\n"); return; } // Copy data without proper validation memcpy(buffer, data, length); printf("[+] Data processed: %zu bytes\n", length); } // Trigger the vulnerability int main(int argc, char* argv[]) { if (argc < 2) { printf("Usage: %s <data_file>\n", argv[0]); return 1; } FILE* fp = fopen(argv[1], "rb"); if (!fp) { printf("[-] Cannot open file\n"); return 1; } fseek(fp, 0, SEEK_END); size_t file_size = ftell(fp); fseek(fp, 0, SEEK_SET); uint8_t* malicious_data = malloc(file_size); fread(malicious_data, 1, file_size, fp); fclose(fp); printf("[*] Triggering CVE-2025-20732 with %zu bytes of data\n", file_size); process_neighbor_report(malicious_data, file_size); free(malicious_data); return 0; } /* Note: This PoC demonstrates the concept of the vulnerability. Actual exploitation requires: 1. System-level access to the target device 2. MediaTek WLAN driver with the vulnerable code 3. Disabled OceReducedNeighborReport feature 4. Specific trigger conditions based on driver implementation For actual security research, please use authorized testing environments. */

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