CVE-2025-31974 HCL BigFix SM根文件系统配置错误漏洞

#!/bin/bash # PoC for CVE-2025-31974: Root File System Not Mounted as Read-Only # This script checks if the root filesystem is writable. # Check mount options for root (/) MOUNT_OPTS=$(findmnt -n -o OPTIONS /) # Check if 'ro' (read-only) is absent in options if [[ "$MOUNT_OPTS" != *"ro"* ]]; then echo "[+] Vulnerability Confirmed: Root filesystem is NOT mounted read-only." echo "[+] Current Mount Options: $MOUNT_OPTS" # Attempt to write a test file to verify (requires root privileges) TEST_FILE="/tmp/cve_2025_31974_test.txt" if touch "$TEST_FILE" 2>/dev/null; then echo "[+] Exploitable: Successfully created a file on the root filesystem." rm -f "$TEST_FILE" else echo "[!] Warning: Write test failed (possible permission restrictions), but mount options indicate vulnerability." fi else echo "[-] Safe: Root filesystem is mounted read-only." fi