CVE-2026-8700: Crypt::DSA弱随机数生成漏洞

#!/usr/bin/perl # This PoC demonstrates the vulnerable logic in Crypt::DSA < 1.20 # It simulates the weak seed generation using Perl's built-in rand() use strict; use warnings; sub vulnerable_seed_generation { # Vulnerable code: Predictable seed generation my $seed = int(rand(2**32)); return $seed; } print "[+] Simulating vulnerable seed generation in Crypt::DSA < 1.20\n"; my $seed1 = vulnerable_seed_generation(); my $seed2 = vulnerable_seed_generation(); print "Generated Seed 1: $seed1\n"; print "Generated Seed 2: $seed2\n"; print "[-] An attacker observing these values could potentially predict future seeds.\n"; print "[!] Fix: Upgrade to Crypt::DSA 1.20 or later which uses Crypt::Random.\n";