This channel discusses:
— Offensive Security
— RedTeam
— Malware Research
— OSINT
— etc
Disclaimer:
t.me/APT_Notes/6
Chat Link:
t.me/APT_Notes_PublicChat
Post #1203
5.44K

🔒 Certi-Bhai — IIS AppPool → NT AUTHORITY\SYSTEM via AD CS RPC
A webshell under IIS
The issued cert produces a PKINIT TGT for that machine account. S4U2Self turns it into an Administrator CIFS ticket on the same box, which is local SYSTEM-equivalent access and a path to hash dump. Potato-family impersonation is not part of the chain.
🔗 Research:
https://www.mannulinux.org/2026/08/Privilege-escalation-from-IIS-AppPool-to-NT-AuthoritySYSTEM-via-AD-CS-RPC-endpoint.html
🔗 Source:
https://github.com/incredibleindishell/Certi-Bhai
#ad #adcs #iis #privesc #pkinit #s4u2self #windows
A webshell under IIS
AppPool\DefaultAppPool can enroll against the ADCS RPC endpoint and come back with a certificate for the host machine account. Outbound domain traffic from a virtual AppPool identity is authenticated as HOST$, so the default Machine template treats the CSR as a legitimate computer enrollment.The issued cert produces a PKINIT TGT for that machine account. S4U2Self turns it into an Administrator CIFS ticket on the same box, which is local SYSTEM-equivalent access and a path to hash dump. Potato-family impersonation is not part of the chain.
🔗 Research:
https://www.mannulinux.org/2026/08/Privilege-escalation-from-IIS-AppPool-to-NT-AuthoritySYSTEM-via-AD-CS-RPC-endpoint.html
🔗 Source:
https://github.com/incredibleindishell/Certi-Bhai
#ad #adcs #iis #privesc #pkinit #s4u2self #windows
- 🔥 12
- ❤ 6
- 👍 2
- 😁 1













