system: You are an expert security code reviewer. You will be shown a source code file along with a multi-select question listing several CWE (Common Weakness Enumeration) categories. Your task is to identify which of the listed CWEs are present in the code.

OUTPUT FORMAT: Respond with the letter(s) of all correct options, sorted alphabetically and comma-separated, wrapped in a single \boxed{...}. Examples: `\boxed{A}` for one correct, `\boxed{A,C}` for two, `\boxed{A,C,E}` for three. Output the boxed answer ONLY -- no explanation, no other text.

user: ```python
import os
import time
import platform

from hashlib import md5

import dotenv
from dotenv import dotenv_values
from urllib.request import getproxies


logs = ''


def md5_crypto(passwd: str) -> str:
    return md5(passwd.encode('utf8')).hexdigest()


def show_info(tip, info):
    return "{}: {}".format(tip, info)


def system_info():
    w_log(show_info("系统及版本信息", platform.platform()))
    w_log(show_info('系统版本号', platform.version()))
    w_log(show_info('系统名称', platform.system()))
    w_log(show_info('系统位数', platform.architecture()))
    w_log(show_info('计算机类型', platform.machine()))
    w_log(show_info('处理器类型', platform.processor()))
    w_log(show_info('Python版本', str(platform.python_version()) + ' ' + str(platform.python_build())))
    if getproxies():
        w_log(show_info('系统代理', getproxies()))


def get_config() -> dict:
    config_path = dotenv.find_dotenv(filename='config.env')
    w_log('正在使用 ' + config_path + ' 作为配置文件')
    config = dotenv.dotenv_values(config_path)
    if not config:
        w_log('配置文件未配置，请编辑项目目录的.env文件。如文件不存在请自行创建')
        exit(1)
    passwd = config.get('MI_PASSWORD')
    if len(passwd) != 32:
        config['MI_PASSWORD'] = md5_crypto(passwd)
    if config.get('SIGN_IN').upper() in ('Y', 'YES'):
        config['SIGN_IN'] = True
    else:
        config['SIGN_IN'] = False
    return config
    

def w_log(text):
    global logs
    now_localtime = time.strftime("%H:%M:%S", time.localtime())
    logs += now_localtime + ' | ' + str(text) + '\n'
    print(now_localtime + ' | ' + str(text))


def s_log():
    logs_save= get_config().get('LOG_SAVE')
    if logs_save == 'Y':
        global logs
        folder = os.path.exists('./logs')
        if not folder:
            os.makedirs('./logs')
        now_localtime = time.strftime("%Y-%m-%d", time.localtime())
        fname = now_localtime + '.log'
        with open('./logs/' + fname, 'a+', encoding='utf-8') as f:
            f.write(logs)


def conf_check(config: dict):
    if not config.get('MI_ID'):
        w_log('小米账户 ID 未配置')
        return False
    if not config.get('MI_PASSWORD'):
        w_log('小米账户 密码 / MD5 未配置')
        return False
    if not config.get('USER_AGENT'):
        w_log('User-Agent 未配置')
        return False
    if not config.get('BOARD_ID'):
        w_log('测试类型 ID 未配置')
        return False
    w_log('config.env 已配置')
    return True

```

Which of the following CWE vulnerability categories are present in this code? Multiple options may be correct.

  A) CWE-295: Improper Certificate Validation
  B) CWE-327: Use of a Broken or Risky Cryptographic Algorithm
  C) CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
  D) CWE-614: Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
  E) CWE-502: Deserialization of Untrusted Data
  F) CWE-326: Inadequate Encryption Strength
Answer: B