mirror of
https://github.com/nmap/nmap.git
synced 2025-12-15 12:19:02 +00:00
Fix unpacking OEM ID; had been grabbing wrong 3 bytes. Replaced bin with string unpacking
This commit is contained in:
dmiller
192
nselib/ipmi.lua
192
nselib/ipmi.lua
@@ -5,7 +5,6 @@
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-- @class module
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-- @name ipmi
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-- @author "Claudiu Perta <claudiu.perta@gmail.com>"
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local bin = require "bin"
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local stdnse = require "stdnse"
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local string = require "string"
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local rand = require "rand"
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@@ -94,7 +93,7 @@ session_open_request = function(console_session_id)
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"\x01\x00\x00\x00" -- AES Encryption
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)
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return bin.pack("<AP", rmcpplus_header("RMCPPLUSOPEN_REQ"), data)
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return rmcpplus_header("RMCPPLUSOPEN_REQ") .. string.pack("<s2", data)
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end
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-- Open rmcpplus_request
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@@ -113,22 +112,20 @@ session_open_cipher_zero_request = function(console_session_id)
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"\x00\x00\x00\x00" -- No Encryption
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)
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return bin.pack("<AP", rmcpplus_header("RMCPPLUSOPEN_REQ"), data)
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return rmcpplus_header("RMCPPLUSOPEN_REQ") .. string.pack("<s2", data)
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end
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rakp_1_request = function(bmc_session_id, console_random_id, username)
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local data = bin.pack(
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"<AAIAAAp",
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"\x00", -- Message Tag
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"\x00\x00\x00", -- Reserved
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local data = string.pack(
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"<Bxxx I c16 Bxx s1",
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0, -- Message Tag
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bmc_session_id,
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console_random_id,
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"\x14", -- Privilege level
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"\x00\x00", -- Reserved
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0x14, -- Privilege level
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username
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)
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return bin.pack("<AP", rmcpplus_header("RAKP1"), data)
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return rmcpplus_header("RAKP1") .. string.pack("<s2", data)
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end
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rakp_hmac_sha1_salt = function(
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@@ -140,8 +137,8 @@ rakp_hmac_sha1_salt = function(
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authorization_level,
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username)
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local salt = bin.pack(
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"AIAAACp",
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local salt = string.pack(
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"c4 I c16c16c16 Bs1",
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console_session_id,
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bmc_session_id,
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console_random_id,
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@@ -180,57 +177,54 @@ parse_channel_auth_reply = function(reply)
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local pos = 0
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local value
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pos, data["rmcp_version"] = bin.unpack("<C", reply, pos)
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pos, data["rmcp_padding"] = bin.unpack("<C", reply, pos)
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pos, data["rmcp_sequence"] = bin.unpack("<C", reply, pos)
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data.rmcp_version,
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data.rmcp_padding,
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data.rmcp_sequence,
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value, pos = string.unpack("<BBBB", reply, pos)
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pos, value = bin.unpack("C", reply, pos)
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data["rmcp_mtype"] = ((value & 0x80) ~= 0)
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data["rmcp_class"] = (value & 0x7F)
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data.rmcp_mtype = ((value & 0x80) ~= 0)
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data.rmcp_class = (value & 0x7F)
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pos, data["session_auth_type"] = bin.unpack("C", reply, pos)
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pos, data["session_sequence"] = bin.unpack("<I", reply, pos)
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pos, data["session_id"] = bin.unpack("<I", reply, pos)
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pos, data["message_length"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_tgt_address"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_tgt_lun"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_header_checksum"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_src_address"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_src_lun"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_command"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_completion_code"] = bin.unpack("C", reply, pos)
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pos, data["ipmi_channel"] = bin.unpack("C", reply, pos)
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data.session_auth_type,
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data.session_sequence,
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data.session_id,
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data.message_length,
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data.ipmi_tgt_address,
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data.ipmi_tgt_lun,
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data.ipmi_header_checksum,
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data.ipmi_src_address,
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data.ipmi_src_lun,
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data.ipmi_command,
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data.ipmi_completion_code,
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data.ipmi_channel,
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value, pos = string.unpack("<BI4I4BBBBBBBBBB", reply, pos)
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pos, value = bin.unpack("C", reply, pos)
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data["ipmi_compat_20"] = ((value & 0x80) ~= 0)
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data["ipmi_compat_reserved1"] = ((value & 0x40) ~= 0)
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data["ipmi_compat_oem_auth"] = ((value & 0x20) ~= 0)
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data["ipmi_compat_password"] = ((value & 0x10) ~= 0)
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data["ipmi_compat_reserved2"] = ((value & 0x08) ~= 0)
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data["ipmi_compat_md5"] = ((value & 0x04) ~= 0)
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data["ipmi_compat_md2"] = ((value & 0x02) ~= 0)
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data["ipmi_compat_none"] = ((value & 0x01) ~= 0)
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data.ipmi_compat_20 = ((value & 0x80) ~= 0)
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data.ipmi_compat_reserved1 = ((value & 0x40) ~= 0)
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data.ipmi_compat_oem_auth = ((value & 0x20) ~= 0)
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data.ipmi_compat_password = ((value & 0x10) ~= 0)
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data.ipmi_compat_reserved2 = ((value & 0x08) ~= 0)
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data.ipmi_compat_md5 = ((value & 0x04) ~= 0)
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data.ipmi_compat_md2 = ((value & 0x02) ~= 0)
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data.ipmi_compat_none = ((value & 0x01) ~= 0)
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pos, value = bin.unpack("C", reply, pos)
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data["ipmi_user_reserved1"] = ((value >> 6) & 0x03)
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data["ipmi_user_kg"] = ((value & 0x20) ~= 0)
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data["ipmi_user_disable_message_auth"] = ((value & 0x10) ~= 0)
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data["ipmi_user_disable_user_auth"] = ((value & 0x08) ~= 0)
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data["ipmi_user_non_null"] = ((value & 0x04) ~= 0)
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data["ipmi_user_null"] = ((value & 0x02) ~= 0)
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data["ipmi_user_anonymous"] = ((value & 0x01) ~= 0)
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value, pos = string.unpack("B", reply, pos)
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data.ipmi_user_reserved1 = ((value >> 6) & 0x03)
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data.ipmi_user_kg = ((value & 0x20) ~= 0)
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data.ipmi_user_disable_message_auth = ((value & 0x10) ~= 0)
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data.ipmi_user_disable_user_auth = ((value & 0x08) ~= 0)
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data.ipmi_user_non_null = ((value & 0x04) ~= 0)
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data.ipmi_user_null = ((value & 0x02) ~= 0)
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data.ipmi_user_anonymous = ((value & 0x01) ~= 0)
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pos, value = bin.unpack("C", reply, pos)
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data["ipmi_conn_reserved1"] = ((value >> 2) & 0x3F)
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data["ipmi_conn_20"] = ((value & 0x02) ~= 0)
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data["ipmi_conn_15"] = ((value & 0x01) ~= 0)
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value, pos = string.unpack("B", reply, pos)
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data.ipmi_conn_reserved1 = ((value >> 2) & 0x3F)
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data.ipmi_conn_20 = ((value & 0x02) ~= 0)
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data.ipmi_conn_15 = ((value & 0x01) ~= 0)
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-- 24 bits OEMID, unpack an int and shift 1 byte to the right
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pos, value = bin.unpack("<I", reply, pos)
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data["ipmi_oem_id"] = value >> 8
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-- restore one byte position
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pos = pos - 1
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pos, data["ipmi_oem_data"] = bin.unpack("A", reply, pos)
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-- 24 bits OEMID
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data.ipmi_oem_id, pos = string.unpack("<I3", reply, pos)
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data.ipmi_oem_data = reply:sub(pos)
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return data
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end
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@@ -241,34 +235,32 @@ parse_open_session_reply = function(reply)
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local value
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-- 4 bytes Header
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pos, data["rmcp_version"] = bin.unpack("C", reply, pos)
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pos, data["rmcp_padding"] = bin.unpack("C", reply, pos)
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pos, data["rmcp_sequence"] = bin.unpack("C", reply, pos)
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pos, value = bin.unpack("C", reply, pos)
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data.rmcp_version,
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data.rmcp_padding,
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data.rmcp_sequence,
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value, pos = string.unpack("BBBB", reply, pos)
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-- bit 1
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data["rmcp_mtype"] = ((value & 0x80) ~= 0)
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data.rmcp_mtype = ((value & 0x80) ~= 0)
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-- bit [2:8]
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data["rmcp_class"] = (value & 0x7F)
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data.rmcp_class = (value & 0x7F)
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pos, data["session_auth_type"] = bin.unpack("C", reply, pos)
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pos, value = bin.unpack("C", reply, pos)
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data.session_auth_type,
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value, pos = string.unpack("BB", reply, pos)
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-- bit 1
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data["session_payload_encrypted"] = ((value & 0x80) ~= 0)
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data.session_payload_encrypted = ((value & 0x80) ~= 0)
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-- bit 2
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data["session_payload_authenticated"] = ((value & 0x40) ~= 0)
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data.session_payload_authenticated = ((value & 0x40) ~= 0)
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-- bit [3:8]
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data["session_payload_type"] = (value & 0x3F)
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data.session_payload_type = (value & 0x3F)
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pos, data["session_id"] = bin.unpack("<I", reply, pos)
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pos, data["session_sequence"] = bin.unpack("<I", reply, pos)
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pos, data["message_length"] = bin.unpack("<S", reply, pos)
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pos, data["ignored1"] = bin.unpack("C", reply, pos)
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pos, data["error_code"] = bin.unpack("C", reply, pos)
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pos, data["ignored2"] = bin.unpack("<S", reply, pos)
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pos, data["console_session_id"] = bin.unpack("<I", reply, pos)
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pos, data["bmc_session_id"] = bin.unpack("<I", reply, pos)
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data.session_id,
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data.session_sequence,
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data.message_length,
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data.ignored1,
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data.error_code,
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data.ignored2,
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data.console_session_id,
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data.bmc_session_id, pos = string.unpack("<I4I4I2BBI2I4I4", reply, pos)
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return data
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end
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@@ -279,36 +271,34 @@ parse_rakp_1_reply = function(reply)
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local value
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-- 4 bytes Header
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pos, data["rmcp_version"] = bin.unpack("C", reply, pos)
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pos, data["rmcp_padding"] = bin.unpack("C", reply, pos)
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pos, data["rmcp_sequence"] = bin.unpack("C", reply, pos)
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pos, value = bin.unpack("C", reply, pos)
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data.rmcp_version,
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data.rmcp_padding,
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data.rmcp_sequence,
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value, pos = string.unpack("BBBB", reply, pos)
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-- bit 1
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data["rmcp_mtype"] = ((value & 0x80) ~= 0)
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data.rmcp_mtype = ((value & 0x80) ~= 0)
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-- bit [2:8]
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data["rmcp_class"] = (value & 0x7F)
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data.rmcp_class = (value & 0x7F)
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pos, data["session_auth_type"] = bin.unpack("C", reply, pos)
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pos, value = bin.unpack("C", reply, pos)
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data.session_auth_type,
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value, pos = string.unpack("BB", reply, pos)
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-- bit 1
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data["session_payload_encrypted"] = ((value & 0x80) ~= 0)
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data.session_payload_encrypted = ((value & 0x80) ~= 0)
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-- bit 2
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data["session_payload_authenticated"] = ((value & 0x40) ~= 0)
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data.session_payload_authenticated = ((value & 0x40) ~= 0)
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-- bit [3:8]
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data["session_payload_type"] = (value & 0x3F)
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data.session_payload_type = (value & 0x3F)
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pos, data["session_id"] = bin.unpack("<I", reply, pos)
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pos, data["session_sequence"] = bin.unpack("<I", reply, pos)
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pos, data["message_length"] = bin.unpack("<S", reply, pos)
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pos, data["ignored1"] = bin.unpack("C", reply, pos)
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pos, data["error_code"] = bin.unpack("C", reply, pos)
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pos, data["ignored2"] = bin.unpack("<S", reply, pos)
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pos, data["console_session_id"] = bin.unpack("<I", reply, pos)
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pos, data["bmc_random_id"] = bin.unpack("A16", reply, pos)
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pos, data["bmc_guid"] = bin.unpack("A16", reply, pos)
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pos, data["hmac_sha1"] = bin.unpack("A20", reply, pos)
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data.session_id,
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data.session_sequence,
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data.message_length,
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data.ignored1,
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data.error_code,
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data.ignored2,
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data.console_session_id,
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data.bmc_random_id,
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data.bmc_guid,
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data.hmac_sha1, pos = string.unpack("<I4I4I2BBI2I4c16c16c20", reply, pos)
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return data
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end
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