Python impacket.ntlm.NTOWFv2() Examples
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Example #1
Source File: scan.py From cve-2019-1040-scanner with MIT License | 5 votes |
def mod_computeResponseNTLMv2(flags, serverChallenge, clientChallenge, serverName, domain, user, password, lmhash='', nthash='', use_ntlmv2=USE_NTLMv2, check=False): responseServerVersion = b'\x01' hiResponseServerVersion = b'\x01' responseKeyNT = NTOWFv2(user, password, domain, nthash) av_pairs = AV_PAIRS(serverName) av_pairs[NTLMSSP_AV_TARGET_NAME] = 'cifs/'.encode('utf-16le') + av_pairs[NTLMSSP_AV_HOSTNAME][1] if av_pairs[NTLMSSP_AV_TIME] is not None: aTime = av_pairs[NTLMSSP_AV_TIME][1] else: aTime = struct.pack('<q', (116444736000000000 + calendar.timegm(time.gmtime()) * 10000000)) av_pairs[NTLMSSP_AV_TIME] = aTime av_pairs[NTLMSSP_AV_FLAGS] = b'\x02' + b'\x00' * 3 serverName = av_pairs.getData() temp = responseServerVersion + hiResponseServerVersion + b'\x00' * 6 + aTime + clientChallenge + b'\x00' * 4 + \ serverName + b'\x00' * 4 ntProofStr = hmac_md5(responseKeyNT, serverChallenge + temp) ntChallengeResponse = ntProofStr + temp lmChallengeResponse = hmac_md5(responseKeyNT, serverChallenge + clientChallenge) + clientChallenge sessionBaseKey = hmac_md5(responseKeyNT, ntProofStr) return ntChallengeResponse, lmChallengeResponse, sessionBaseKey