71 lines
2.0 KiB
Ruby
71 lines
2.0 KiB
Ruby
# -*- coding: binary -*-
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require 'rex/proto/kerberos'
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module Msf
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module Kerberos
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module Client
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module TgsResponse
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# Extracts the Kerberos credentials, buildint a MIT Cache Credential,
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# from a Kerberos TGS response.
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#
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# @param res [Rex::Proto::Kerberos::Model::KdcResponse]
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# @param key [String]
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# @return [Rex::Proto::Kerberos::CredentialCache::Cache]
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def extract_kerb_creds(res, key)
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decrypt_res = res.enc_part.decrypt(key, 9)
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enc_res = Rex::Proto::Kerberos::Model::EncKdcResponse.decode(decrypt_res)
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client = create_cache_principal(
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name_type: res.cname.name_type,
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realm: res.crealm,
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components: res.cname.name_string
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)
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server = create_cache_principal(
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name_type: enc_res.sname.name_type,
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realm: enc_res.srealm,
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components: enc_res.sname.name_string
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)
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key = create_cache_key_block(
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key_type: enc_res.key.type,
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key_value: enc_res.key.value
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)
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times = create_cache_times(
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auth_time: enc_res.auth_time,
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start_time: enc_res.start_time,
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end_time: enc_res.end_time,
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renew_till: enc_res.renew_till
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)
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credential = create_cache_credential(
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client: client,
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server: server,
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key: key,
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time: times,
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ticket: res.ticket.encode,
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flags: enc_res.flags
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)
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cache_principal = create_cache_principal(
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name_type: res.cname.name_type, # NT_PRINCIPAL
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#realm: realm,# opts[:realm],
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realm: res.crealm,
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#components: user # [opts[:cname]]
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components: res.cname.name_string
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)
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cache = create_cache(
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primary_principal: cache_principal,
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credentials: [credential]
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)
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cache
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end
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end
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end
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end
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end
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