Certipy

Python implementation for Active Directory certificate abuse

https://github.com/ollypwn/Certipy

#ADCS

ADCS: Playing with ESC4

Enumeration and abuse of Linux-based ADCS ESC4

Research:
https://www.fortalicesolutions.com/posts/adcs-playing-with-esc4

Source:
https://github.com/fortalice/modifyCertTemplate

#adcs #abuse #pentest #tools

Keeping Up with the NTLM Relay

https://www.fortalicesolutions.com/posts/keeping-up-with-the-ntlm-relay

#ad #ntlm #relay #adcs

Certipy 2.0: BloodHound, New Escalations, Shadow Credentials, Golden Certificates, and more!

Blog:
https://research.ifcr.dk/certipy-2-0-bloodhound-new-escalations-shadow-credentials-golden-certificates-and-more-34d1c26f0dc6

Tool:
https://github.com/ly4k/Certipy

#ad #adcs #abuse #tools

LDAP relays for initial foothold in dire situations

https://offsec.almond.consulting/ldap-relays-for-initial-foothold-in-dire-situations.html

#ad #relay #attack #adcs #redteam

📜 Abuse AD CS via dNSHostName Spoofing

This blog covers the technical details of CVE-2022-26923. Active Directory Domain Services Elevation of Privilege Vulnerability via AD CS dNSHostName Spoofing.

https://research.ifcr.dk/certifried-active-directory-domain-privilege-escalation-cve-2022-26923-9e098fe298f4

When you have SYSTEM on server/workstation:
https://gist.github.com/Wh04m1001/355c0f697bfaaf6546e3b698295d1aa1

#ad #adcs #privesc #redteam

🛠 DNSHostName Spoofing combined with KrbRelayUp

Domain user to domain admin without the requirement for adding/owning previously a computer account. Step-by-step write-up of the attack in a pure Windows environment.

https://gist.github.com/tothi/f89a37127f2233352d74eef6c748ca25

#ad #adcs #privesc #ldap #relay #redteam

📜 Defused That SAN Flag

One more post about Microsoft's recent security updates - re changes to Kerberos and the new certificate extension containing the requester's SID.
The changes 'defuse' the impact of the flag that allows adding custom subject alternative names to any certificate (including the ones that 'actually' should be auto-enrolled).

https://elkement.blog/2022/06/13/defused-that-san-flag/

#ad #adcs #privesc #redteam

📒 Certipy 4.0: ESC9 & ESC10, BloodHound GUI, New Authentication and Request Methods — and more!

https://research.ifcr.dk/certipy-4-0-esc9-esc10-bloodhound-gui-new-authentication-and-request-methods-and-more-7237d88061f7

#ad #adcs #certypy #bloodhound

🎭 Masky

Masky is a python library providing an alternative way to remotely dump domain users' credentials thanks to an ADCS. A command line tool has been built on top of this library in order to easily gather PFX, NT hashes and TGT on a larger scope.

This tool does not exploit any new vulnerability and does not work by dumping the LSASS process memory. Indeed, it only takes advantage of legitimate Windows and Active Directory features (token impersonation, certificate authentication via kerberos & NT hashes retrieval via PKINIT).

Blog:
https://z4ksec.github.io/posts/masky-release-v0.0.3/

Source:
https://github.com/Z4kSec/Masky

#ad #adcs #lsass #redteam

📄 Detecting ADCS Web Services Abuse (ESC8)

One of the popular attack vectors against Active Directory Certificate Services is ESC8. This article covers detecting irregular access to some ADCS web services exposed, as well as detecting the NTLM relaying itself.

https://medium.com/falconforce/falconfriday-detecting-adcs-web-services-abuse-0xff20-9f660c83cb36

#adcs #detection #esc8 #blueteam

📄 ADCS: New Ways to Abuse ManageCA Permissions

The Certsrv service exhibits a race condition during the creation of CRL files, any standard user with ManageCA ACL and publish the CDP and carry out arbitrary file movements, ultimately leading to domain elevation of privileges.

🔗 https://whoamianony.top/posts/ad-cs-new-ways-to-abuse-manageca-permissions/

#ad #adcs #manageca #privesc

🔐 Exploiting WSUS with MITM for ADCS ESC8 Attack

Discover how attackers abuse misconfigured WSUS servers to escalate privileges through ADCS vulnerabilities. Delve into the intricacies of Windows Server Update Services and the potential risks associated with misconfigurations.

📝 Research:
https://j4s0nmo0n.github.io/belettetimoree.github.io/2023-12-01-WSUS-to-ESC8.html

#ad #adcs #wsus #mitm

🔔Call and Register — Relay Attack on WinReg RPC Client

A critical vulnerability (CVE-2024-43532) has been identified in Microsoft’s Remote Registry client. This flaw allows attackers to exploit insecure fallback mechanisms in the WinReg client, enabling them to relay authentication details and make unauthorized certificate requests through Active Directory Certificate Services (ADCS).

🔗 Research:
https://www.akamai.com/blog/security-research/winreg-relay-vulnerability

🔗 RPC Visibility Tool:
https://github.com/akamai/akamai-security-research/tree/main/rpc_toolkit/rpc_visibility

🔗 PoC:
https://github.com/akamai/akamai-security-research/tree/main/PoCs/cve-2024-43532

#ad #adcs #rpc #ntlm #relay #etw #advapi