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IndependentUserCollection: Improved ChallengeMessage generation

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Tal Aloni 2017-01-19 00:40:19 +02:00
parent ec4be00f90
commit d66208cfb8
1 changed files with 16 additions and 3 deletions
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19
SMBLibrary/Server/IndependentUserCollection.cs
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@ -126,11 +126,24 @@ namespace SMBLibrary.Server
message.NegotiateFlags = NegotiateFlags.UnicodeEncoding | message.NegotiateFlags = NegotiateFlags.UnicodeEncoding |
NegotiateFlags.TargetNameSupplied | NegotiateFlags.TargetNameSupplied |
NegotiateFlags.NTLMKey | NegotiateFlags.NTLMKey |
NegotiateFlags.TargetTypeServer |
NegotiateFlags.ExtendedSecurity | NegotiateFlags.ExtendedSecurity |
NegotiateFlags.TargetInfo | NegotiateFlags.TargetInfo |
NegotiateFlags.Version | NegotiateFlags.Version;
NegotiateFlags.Use128BitEncryption | if ((negotiateMessage.NegotiateFlags & NegotiateFlags.Sign) > 0)
NegotiateFlags.Use56BitEncryption; {
// [MS-NLMP] If the client sends NTLMSSP_NEGOTIATE_SIGN to the server in the NEGOTIATE_MESSAGE,
// the server MUST return NTLMSSP_NEGOTIATE_SIGN to the client in the CHALLENGE_MESSAGE.
message.NegotiateFlags |= NegotiateFlags.Sign;
}
if ((negotiateMessage.NegotiateFlags & NegotiateFlags.Use56BitEncryption) > 0)
{
message.NegotiateFlags |= NegotiateFlags.Use56BitEncryption;
}
if ((negotiateMessage.NegotiateFlags & NegotiateFlags.Use128BitEncryption) > 0)
{
message.NegotiateFlags |= NegotiateFlags.Use128BitEncryption;
}
message.TargetName = Environment.MachineName; message.TargetName = Environment.MachineName;
message.ServerChallenge = serverChallenge; message.ServerChallenge = serverChallenge;
message.TargetInfo = AVPairUtils.GetAVPairSequence(Environment.MachineName, Environment.MachineName); message.TargetInfo = AVPairUtils.GetAVPairSequence(Environment.MachineName, Environment.MachineName);