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Use timed reads in the apache_activemq_rce_cve_2023_46604 check method #19139

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Use timed reads in the apache_activemq_rce_cve_2023_46604 check method #19139

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12 changes: 8 additions & 4 deletions modules/exploits/multi/misc/apache_activemq_rce_cve_2023_46604.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -80,15 +80,17 @@ def initialize(info = {})
def check
connect

res = sock.get_once
len = sock.timed_read(4)&.unpack1('N')

return CheckCode::Unknown if len.nil? || len > 0x1000 # upper limit in case the service isn't ActiveMQ

res = sock.timed_read(len)

disconnect

return CheckCode::Unknown unless res

len, _, magic = res.unpack('NCZ*')

return CheckCode::Unknown unless res.length == len + 4
_, magic = res.unpack('CZ*')

return CheckCode::Unknown unless magic == 'ActiveMQ'

Expand All @@ -110,6 +112,8 @@ def check
end

Exploit::CheckCode::Safe("Apache ActiveMQ #{version}")
rescue ::Timeout::Error
CheckCode::Unknown
end

def exploit
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