o365enum:一款功能强大的Office 365用户枚举工具

微信扫一扫,分享到朋友圈

o365enum:一款功能强大的Office 365用户枚举工具

o365enum

o365enum的全称为Office 365 User Enumeration,它是一款功能强大的Office 365用户枚举工具,该工具基于Python语言开发,并且能够使用ActiveSync、Autodiscover或office.com登录页面所返回的信息来枚举有效的Office 365用户名。

工具下载

广大研究人员可以使用下列命令将该项目源码克隆至本地:

git clone https://github.com/gremwell/o365enum.git

工具使用

o365enum可以从第一个参数所提供的文件中读取用户名信息,这个文件中每一个用户名占一行。为了方便解析,输出数据的文件格式为CSV,有效状态有0(无效用户)、1(有效用户)和2(有效用户和有效密码)。

python3.6 o365enum.py -h
usage: o365enum.py [-h] -u USERLIST [-p PASSWORD] [-n NUM] [-v]
[-m {activesync,autodiscover,office.com}]
Office365 User Enumeration Script
optional arguments:
-h, --help            显示帮助信息和退出
-u USERLIST, --userlist USERLIST
用户名列表,每个用户名占一行(默认: None)
-p PASSWORD, --password PASSWORD
密码尝试(默认: Password1)
-n NUM, --num NUM     重试次数,降低假阳性(默认: 3)
-v, --verbose         启用Verbose输出(默认: False)
-m {activesync,autodiscover,office.com}, --method {activesync,autodiscover,office.com}
需要使用的枚举方法(默认: activesync)

工具运行样例

./o365enum.py -u users.txt -p Password2 -n 1 -m activesync
username,valid
nonexistent@contoso.com,0
existing@contoso.com,1

枚举方法-ActiveSync枚举

这个方法给予grimhacker的方法实现,ta所实现的方法可以向ActiveSync节点发送基础HTTP认证请求,但是通过检测状态码的方式并不适用于Office365,因为无论目标用户是否存在,Office365都会返回401。

虽然o365enum会发送相同的请求,但它会检测一个自定义的HTTP响应Header(X-MailboxGuid)是否存在以确定用户名是否有效。

现有账号

下面请求的中Authorization Header中包含了Base64编码的凭证数据:valid_user@contoso.com:Password1

OPTIONS /Microsoft-Server-ActiveSync HTTP/1.1
Host: outlook.office365.com
Connection: close
MS-ASProtocolVersion: 14.0
Content-Length: 0
Authorization: Basic dmFsaWRfdXNlckBjb250b3NvLmNvbTpQYXNzd29yZDE=

该请求将触发下列带有X-MailboxGuid Header的响应(”401 Unauthorized”),这表明目标用户名有效,但密码无效:

Date: Fri, 31 Jan 2020 13:02:46 GMT
Connection: close
HTTP/1.1 401 Unauthorized
Content-Length: 1293
Content-Type: text/html
Server: Microsoft-IIS/10.0
request-id: d494a4bc-3867-436a-93ef-737f9e0522eb
X-CalculatedBETarget: AM0PR09MB2882.eurprd09.prod.outlook.com
X-BackEndHttpStatus: 401
X-RUM-Validated: 1
X-MailboxGuid: aadaf467-cd08-4a23-909b-9702eca5b845 <--- This header leaks the account status (existing)
X-DiagInfo: AM0PR09MB2882
X-BEServer: AM0PR09MB2882
X-Proxy-RoutingCorrectness: 1
X-Proxy-BackendServerStatus: 401
X-Powered-By: ASP.NET
X-FEServer: AM0PR06CA0096
WWW-Authenticate: Basic Realm="",Negotiate
Date: Fri, 31 Jan 2020 13:02:46 GMT
Connection: close
--snip--

不存在的账户

下面请求的中Authorization Header中包含了Base64编码的凭证数据:invalid_user@contoso.com:Password1

OPTIONS /Microsoft-Server-ActiveSync HTTP/1.1
Host: outlook.office365.com
Connection: close
MS-ASProtocolVersion: 14.0
Content-Length: 2
Authorization: Basic aW52YWxpZF91c2VyQGNvbnRvc28uY29tOlBhc3N3b3JkMQ==

该请求将触发下列响应(”401 Unauthorized”),这表明目标用户名无效:

HTTP/1.1 401 Unauthorized
Content-Length: 1293
Content-Type: text/html
Server: Microsoft-IIS/10.0
request-id: 2944dbfc-8a1e-4759-a8a2-e4568950601d
X-CalculatedFETarget: DB3PR0102CU001.internal.outlook.com
X-BackEndHttpStatus: 401
WWW-Authenticate: Basic Realm="",Negotiate
X-FEProxyInfo: DB3PR0102CA0017.EURPRD01.PROD.EXCHANGELABS.COM
X-CalculatedBETarget: DB7PR04MB5452.eurprd04.prod.outlook.com
X-BackEndHttpStatus: 401
X-RUM-Validated: 1
X-DiagInfo: DB7PR04MB5452
X-BEServer: DB7PR04MB5452
X-Proxy-RoutingCorrectness: 1
X-Proxy-BackendServerStatus: 401
X-FEServer: DB3PR0102CA0017
X-Powered-By: ASP.NET
X-FEServer: AM0PR04CA0024
Date: Fri, 31 Jan 2020 16:19:11 GMT
Connection: close
--snip--

枚举方法-Autodiscover枚举

Autodiscover 节点允许我们在不需要进行认证尝试的情况下实现用户枚举,如果目标用户存在,该节点将返回200状态码,如果用户不存在,则返回302状态码。

现有账号

GET /autodiscover/autodiscover.json/v1.0/existing@contoso.com?Protocol=Autodiscoverv1 HTTP/1.1
Host: outlook.office365.com
User-Agent: Microsoft Office/16.0 (Windows NT 10.0; Microsoft Outlook 16.0.12026; Pro
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
MS-ASProtocolVersion: 14.0
HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 97
Content-Type: application/json; charset=utf-8
Vary: Accept-Encoding
Server: Microsoft-IIS/10.0
request-id: fee7f899-7115-43da-9d34-d3ee19920a89
X-CalculatedBETarget: AM0PR09MB2882.eurprd09.prod.outlook.com
X-BackEndHttpStatus: 200
X-RUM-Validated: 1
X-AspNet-Version: 4.0.30319
X-DiagInfo: AM0PR09MB2882
X-BEServer: AM0PR09MB2882
X-Proxy-RoutingCorrectness: 1
X-Proxy-BackendServerStatus: 200
X-Powered-By: ASP.NET
X-FEServer: AM0PR0202CA0008
Date: Mon, 02 Mar 2020 12:50:48 GMT
Connection: close
{"Protocol":"Autodiscoverv1","Url":"https://outlook.office365.com/autodiscover/autodiscover.xml"}

不存在的用户

GET /autodiscover/autodiscover.json/v1.0/nonexistent@contoso.com?Protocol=Autodiscoverv1 HTTP/1.1
Host: outlook.office365.com
User-Agent: Microsoft Office/16.0 (Windows NT 10.0; Microsoft Outlook 16.0.12026; Pro
Accept-Encoding: gzip, deflate
Accept: */*
Connection: close
MS-ASProtocolVersion: 14.0
HTTP/1.1 302 Found
Cache-Control: private
Content-Length: 277
Content-Type: text/html; charset=utf-8
Location: https://outlook.office365.com/autodiscover/autodiscover.json?Email=nonexistent%40contoso.com&Protocol=Autodiscoverv1&RedirectCount=1
Server: Microsoft-IIS/10.0
request-id: 1c50adeb-53ac-41b9-9c34-7045cffbae45
X-CalculatedBETarget: DB6PR0202MB2568.eurprd02.prod.outlook.com
X-BackEndHttpStatus: 302
X-RUM-Validated: 1
X-AspNet-Version: 4.0.30319
X-DiagInfo: DB6PR0202MB2568
X-BEServer: DB6PR0202MB2568
X-Proxy-RoutingCorrectness: 1
X-Proxy-BackendServerStatus: 302
X-Powered-By: ASP.NET
X-FEServer: AM0PR0202CA0013
Date: Mon, 02 Mar 2020 12:50:50 GMT
Connection: close
<html><head><title>Object moved</title></head><body>
<h2>Object moved to <a href="https://outlook.office365.com/autodiscover/autodiscover.json?Email=nonexistent%40contoso.com&Protocol=Autodiscoverv1&RedirectCount=1">here</a>.</h2>
</body></html>

枚举方法-Office.com枚举

这种方法仅适用于身份为Exchange Online订阅用户并且没有部署/混合部署Exchange服务器的组织。

对于某些在内部部署或混合部署Exchange服务器的组织来说,服务器所返回的值可能并不能准确标明目标用户是否存在。

当你不想使用“Password1”进行认证尝试的时候,这种方法就很管用了。

现存用户

当目标账户存在,IfExistsResult则会被设置为1:

POST /common/GetCredentialType?mkt=en-US HTTP/1.1
Host: login.microsoftonline.com
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36
Accept: application/json
Connection: close
client-request-id: 4345a7b9-9a63-4910-a426-35363201d503
hpgrequestid: 23975ac9-f51c-443a-8318-db006fd83100
Referer: https://login.microsoftonline.com/common/oauth2/authorize
canary: --snip--
hpgact: 1800
hpgid: 1104
Origin: https://login.microsoftonline.com
Cookie: --snip--
Content-Length: 1255
Content-Type: application/json
{
"checkPhones": false,
"isOtherIdpSupported": true,
"isRemoteNGCSupported": true,
"federationFlags": 0,
"isCookieBannerShown": false,
"isRemoteConnectSupported": false,
"isSignup": false,
"originalRequest": "rQIIA--snip--YWSO2",
"isAccessPassSupported": true,
"isFidoSupported": false,
"isExternalFederationDisallowed": false,
"username": "nonexistent@contoso.com",
"forceotclogin": false
}
HTTP/1.1 200 OK
Cache-Control: no-cache, no-store
Pragma: no-cache
Content-Type: application/json; charset=utf-8
Expires: -1
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-Content-Type-Options: nosniff
client-request-id: 95bba645-c3b0-4566-b0f4-237bd3df2ca7
x-ms-request-id: fea01b74-7a60-4142-a54d-7aa8f6471c00
x-ms-ests-server: 2.1.9987.14 - WEULR2 ProdSlices
Referrer-Policy: strict-origin-when-cross-origin
P3P: CP="DSP CUR OTPi IND OTRi ONL FIN"
Set-Cookie: fpc=Ai0TKYuyz3BCp7OL29pUnG7sYIXWAQAAABsDztUOAAAA; expires=Sat, 07-Mar-2020 12:57:44 GMT; path=/; secure; HttpOnly; SameSite=None
Set-Cookie: x-ms-gateway-slice=estsfd; path=/; SameSite=None; secure; HttpOnly
Set-Cookie: stsservicecookie=ests; path=/; secure; HttpOnly; SameSite=None
Date: Thu, 06 Feb 2020 12:57:43 GMT
Connection: close
Content-Length: 579
{
"ThrottleStatus": 0,
"apiCanary": "--snip--",
"Username": "nonexistent@contoso.com",
"IfExistsResult": 1,
"EstsProperties": {
"UserTenantBranding": null,
"DomainType": 3
},
"Credentials": {
"PrefCredential": 1,
"FidoParams": null,
"RemoteNgcParams": null,
"SasParams": null,
"HasPassword": true
},
"IsSignupDisallowed": true,
"Display": "nonexistent@contoso.com"
}

不存在的用户

如果目标账户不存在,IfExistsResult将会被设置为0:

POST /common/GetCredentialType?mkt=en-US HTTP/1.1
Host: login.microsoftonline.com
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.88 Safari/537.36
Accept: application/json
Connection: close
client-request-id: 4345a7b9-9a63-4910-a426-35363201d503
hpgrequestid: 23975ac9-f51c-443a-8318-db006fd83100
Referer: https://login.microsoftonline.com/common/oauth2/authorize
canary: --snip--
hpgact: 1800
hpgid: 1104
Origin: https://login.microsoftonline.com
Cookie: --snip--
Content-Length: 1255
Content-Type: application/json
{
"checkPhones": false,
"isOtherIdpSupported": true,
"isRemoteNGCSupported": true,
"federationFlags": 0,
"isCookieBannerShown": false,
"isRemoteConnectSupported": false,
"isSignup": false,
"originalRequest": "rQIIA--snip--YWSO2",
"isAccessPassSupported": true,
"isFidoSupported": false,
"isExternalFederationDisallowed": false,
"username": "existing@contoso.com",
"forceotclogin": false
}
HTTP/1.1 200 OK
Cache-Control: no-cache, no-store
Pragma: no-cache
Content-Type: application/json; charset=utf-8
Expires: -1
Strict-Transport-Security: max-age=31536000; includeSubDomains
X-Content-Type-Options: nosniff
client-request-id: 177110da-7ce4-4880-b856-be6326078046
x-ms-request-id: c708b83f-4167-4b4c-a1db-d2011ecb3200
x-ms-ests-server: 2.1.9966.8 - AMS2 ProdSlices
Referrer-Policy: strict-origin-when-cross-origin
P3P: CP="DSP CUR OTPi IND OTRi ONL FIN"
Set-Cookie: fpc=ArU-Dva0f59Eg4t_V3VsX_TsYIXWAQAAAFRGxtUOAAAA; expires=Sun, 01-Mar-2020 16:01:26 GMT; path=/; secure; HttpOnly; SameSite=None
Set-Cookie: x-ms-gateway-slice=prod; path=/; SameSite=None; secure; HttpOnly
Set-Cookie: stsservicecookie=ests; path=/; secure; HttpOnly; SameSite=None
Date: Fri, 31 Jan 2020 16:01:26 GMT
Connection: close
Content-Length: 587
{
"Username":"existing@contoso.com",
"Display":"existing@contoso.com",
"IfExistsResult":0,
"ThrottleStatus":0,
"Credentials":{
"PrefCredential":1,
"HasPassword":true,
"RemoteNgcParams":null,
"FidoParams":null,
"SasParams":null
},
"EstsProperties":{
"UserTenantBranding":null,
"DomainType":3
},
"IsSignupDisallowed":true,
"apiCanary":"--snip--"
}

项目地址

o365enum:【 GitHub传送门

微信扫一扫,分享到朋友圈

o365enum:一款功能强大的Office 365用户枚举工具

新国货品牌崛起的9大密码

上一篇

安兔兔10月安卓机好评榜单TOP10出炉!三星第一名

下一篇

你也可能喜欢

o365enum:一款功能强大的Office 365用户枚举工具

长按储存图像,分享给朋友