CVE-2026-33550: SOGo OTP更新及长度不足漏洞

# PoC for CVE-2026-33550: Weak OTP Implementation Analysis # This script calculates the entropy of a 12-digit OTP to demonstrate the vulnerability. import math def calculate_entropy(length, charset_size=10): """Calculate entropy in bits.""" return length * math.log2(charset_size) # Vulnerable configuration otp_length = 12 charset_size = 10 # Assuming numeric digits as per description entropy_bits = calculate_entropy(otp_length, charset_size) print(f"[+] CVE-2026-33550 Analysis") print(f"[+] OTP Length: {otp_length} digits") print(f"[+] Estimated Entropy: {entropy_bits:.2f} bits") print(f"[!] Vulnerability: Entropy is too low (Recommended > 64 bits).") print(f"[!] Impact: Susceptible to brute force attacks.") # Note: To verify the "not renewing" issue, a tester would: # 1. Enable OTP for a user and record the Secret (A). # 2. Disable OTP. # 3. Enable OTP again and record the Secret (B). # 4. Compare A and B. If A == B, the vulnerability is confirmed.