std::string AccountMgr::CalculateShaPassHash(std::string const& name, std::string const& password)
{
SHA1Hash sha;
sha.Initialize();
sha.UpdateData(name);
sha.UpdateData(":");
sha.UpdateData(password);
sha.Finalize();
return ByteArrayToHexStr(sha.GetDigest(), sha.GetLength());
}
std::string CalculateShaPassHash(std::string& name, std::string& password)
{
SHA1Hash sha;
sha.Initialize();
sha.UpdateData(name);
sha.UpdateData(":");
sha.UpdateData(password);
sha.Finalize();
std::string encoded;
hexEncodeByteArray(sha.GetDigest(), sha.GetLength(), encoded);
return encoded;
}
// Make the SRP6 calculation from hash in dB
void AuthSocket::_SetVSFields(const std::string& rI)
{
s.SetRand(s_BYTE_SIZE * 8);
BigNumber I;
I.SetHexStr(rI.c_str());
// In case of leading zeros in the rI hash, restore them
uint8 mDigest[SHA_DIGEST_LENGTH];
memset(mDigest, 0, SHA_DIGEST_LENGTH);
if (I.GetNumBytes() <= SHA_DIGEST_LENGTH)
{
memcpy(mDigest, I.AsByteArray(), I.GetNumBytes());
}
std::reverse(mDigest, mDigest + SHA_DIGEST_LENGTH);
SHA1Hash sha;
sha.UpdateData(s.AsByteArray(), s.GetNumBytes());
sha.UpdateData(mDigest, SHA_DIGEST_LENGTH);
sha.Finalize();
BigNumber x;
x.SetBinary(sha.GetDigest(), sha.GetLength());
v = g.ModExp(x, N);
// No SQL injection (username escaped)
const char *v_hex, *s_hex;
v_hex = v.AsHexStr();
s_hex = s.AsHexStr();
PreparedStatement* stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_VS);
stmt->setString(0, v_hex);
stmt->setString(1, s_hex);
stmt->setString(2, _login);
LoginDatabase.Execute(stmt);
OPENSSL_free((void*)v_hex);
OPENSSL_free((void*)s_hex);
}
void WorldSocket::HandleAuthContinuedSession(WorldPackets::Auth::AuthContinuedSession& authSession)
{
uint32 accountId = PAIR64_LOPART(authSession.Key);
_type = ConnectionType(PAIR64_HIPART(authSession.Key));
PreparedStatement* stmt = LoginDatabase.GetPreparedStatement(LOGIN_SEL_ACCOUNT_INFO_CONTINUED_SESSION);
stmt->setUInt32(0, accountId);
PreparedQueryResult result = LoginDatabase.Query(stmt);
if (!result)
{
SendAuthResponseError(AUTH_UNKNOWN_ACCOUNT);
DelayedCloseSocket();
return;
}
Field* fields = result->Fetch();
std::string login = fields[0].GetString();
BigNumber k;
k.SetHexStr(fields[1].GetCString());
_authCrypt.Init(&k, _encryptSeed.AsByteArray().get(), _decryptSeed.AsByteArray().get());
_headerBuffer.Resize(SizeOfClientHeader[1][1]);
SHA1Hash sha;
sha.UpdateData(login);
sha.UpdateBigNumbers(&k, NULL);
sha.UpdateData((uint8*)&_authSeed, 4);
sha.Finalize();
if (memcmp(sha.GetDigest(), authSession.Digest, sha.GetLength()))
{
SendAuthResponseError(AUTH_UNKNOWN_ACCOUNT);
TC_LOG_ERROR("network", "WorldSocket::HandleAuthContinuedSession: Authentication failed for account: %u ('%s') address: %s", accountId, login.c_str(), GetRemoteIpAddress().to_string().c_str());
DelayedCloseSocket();
return;
}
sWorld->AddInstanceSocket(shared_from_this(), accountId);
}
// Logon Proof command handler
bool AuthSession::HandleLogonProof()
{
TC_LOG_DEBUG("server.authserver", "Entering _HandleLogonProof");
// Read the packet
sAuthLogonProof_C *logonProof = reinterpret_cast<sAuthLogonProof_C*>(GetReadBuffer().GetReadPointer());
// If the client has no valid version
if (_expversion == NO_VALID_EXP_FLAG)
{
// Check if we have the appropriate patch on the disk
TC_LOG_DEBUG("network", "Client with invalid version, patching is not implemented");
return false;
}
// Continue the SRP6 calculation based on data received from the client
BigNumber A;
A.SetBinary(logonProof->A, 32);
// SRP safeguard: abort if A == 0
if (A.isZero())
{
return false;
}
SHA1Hash sha;
sha.UpdateBigNumbers(&A, &B, NULL);
sha.Finalize();
BigNumber u;
u.SetBinary(sha.GetDigest(), 20);
BigNumber S = (A * (v.ModExp(u, N))).ModExp(b, N);
uint8 t[32];
uint8 t1[16];
uint8 vK[40];
memcpy(t, S.AsByteArray(32).get(), 32);
for (int i = 0; i < 16; ++i)
t1[i] = t[i * 2];
sha.Initialize();
sha.UpdateData(t1, 16);
sha.Finalize();
for (int i = 0; i < 20; ++i)
vK[i * 2] = sha.GetDigest()[i];
for (int i = 0; i < 16; ++i)
t1[i] = t[i * 2 + 1];
sha.Initialize();
sha.UpdateData(t1, 16);
sha.Finalize();
for (int i = 0; i < 20; ++i)
vK[i * 2 + 1] = sha.GetDigest()[i];
K.SetBinary(vK, 40);
uint8 hash[20];
sha.Initialize();
sha.UpdateBigNumbers(&N, NULL);
sha.Finalize();
memcpy(hash, sha.GetDigest(), 20);
sha.Initialize();
sha.UpdateBigNumbers(&g, NULL);
sha.Finalize();
for (int i = 0; i < 20; ++i)
hash[i] ^= sha.GetDigest()[i];
BigNumber t3;
t3.SetBinary(hash, 20);
sha.Initialize();
sha.UpdateData(_login);
sha.Finalize();
uint8 t4[SHA_DIGEST_LENGTH];
memcpy(t4, sha.GetDigest(), SHA_DIGEST_LENGTH);
sha.Initialize();
sha.UpdateBigNumbers(&t3, NULL);
sha.UpdateData(t4, SHA_DIGEST_LENGTH);
sha.UpdateBigNumbers(&s, &A, &B, &K, NULL);
sha.Finalize();
BigNumber M;
M.SetBinary(sha.GetDigest(), sha.GetLength());
// Check if SRP6 results match (password is correct), else send an error
if (!memcmp(M.AsByteArray(sha.GetLength()).get(), logonProof->M1, 20))
{
TC_LOG_DEBUG("server.authserver", "'%s:%d' User '%s' successfully authenticated", GetRemoteIpAddress().to_string().c_str(), GetRemotePort(), _login.c_str());
// Update the sessionkey, last_ip, last login time and reset number of failed logins in the account table for this account
// No SQL injection (escaped user name) and IP address as received by socket
const char *K_hex = K.AsHexStr();
PreparedStatement *stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_LOGONPROOF);
stmt->setString(0, K_hex);
stmt->setString(1, GetRemoteIpAddress().to_string().c_str());
stmt->setUInt32(2, GetLocaleByName(_localizationName));
stmt->setString(3, _os);
stmt->setString(4, _login);
LoginDatabase.DirectExecute(stmt);
OPENSSL_free((void*)K_hex);
// Finish SRP6 and send the final result to the client
sha.Initialize();
sha.UpdateBigNumbers(&A, &M, &K, NULL);
sha.Finalize();
// Check auth token
if ((logonProof->securityFlags & 0x04) || !_tokenKey.empty())
{
uint8 size = *(GetReadBuffer().GetReadPointer() + sizeof(sAuthLogonProof_C));
std::string token(reinterpret_cast<char*>(GetReadBuffer().GetReadPointer() + sizeof(sAuthLogonProof_C) + sizeof(size)), size);
GetReadBuffer().ReadCompleted(sizeof(size) + size);
uint32 validToken = TOTP::GenerateToken(_tokenKey.c_str());
uint32 incomingToken = atoi(token.c_str());
if (validToken != incomingToken)
{
ByteBuffer packet;
packet << uint8(AUTH_LOGON_PROOF);
packet << uint8(WOW_FAIL_UNKNOWN_ACCOUNT);
packet << uint8(3);
packet << uint8(0);
SendPacket(packet);
return false;
}
}
ByteBuffer packet;
if (_expversion & POST_BC_EXP_FLAG) // 2.x and 3.x clients
{
sAuthLogonProof_S proof;
memcpy(proof.M2, sha.GetDigest(), 20);
proof.cmd = AUTH_LOGON_PROOF;
proof.error = 0;
proof.AccountFlags = 0x00800000; // 0x01 = GM, 0x08 = Trial, 0x00800000 = Pro pass (arena tournament)
proof.SurveyId = 0;
proof.unk3 = 0;
packet.resize(sizeof(proof));
std::memcpy(packet.contents(), &proof, sizeof(proof));
}
else
{
sAuthLogonProof_S_Old proof;
memcpy(proof.M2, sha.GetDigest(), 20);
proof.cmd = AUTH_LOGON_PROOF;
proof.error = 0;
proof.unk2 = 0x00;
packet.resize(sizeof(proof));
std::memcpy(packet.contents(), &proof, sizeof(proof));
}
SendPacket(packet);
_isAuthenticated = true;
}
else
{
ByteBuffer packet;
packet << uint8(AUTH_LOGON_PROOF);
packet << uint8(WOW_FAIL_UNKNOWN_ACCOUNT);
packet << uint8(3);
packet << uint8(0);
SendPacket(packet);
TC_LOG_DEBUG("server.authserver", "'%s:%d' [AuthChallenge] account %s tried to login with invalid password!",
GetRemoteIpAddress().to_string().c_str(), GetRemotePort(), _login.c_str());
uint32 MaxWrongPassCount = sConfigMgr->GetIntDefault("WrongPass.MaxCount", 0);
// We can not include the failed account login hook. However, this is a workaround to still log this.
if (sConfigMgr->GetBoolDefault("WrongPass.Logging", false))
{
PreparedStatement* logstmt = LoginDatabase.GetPreparedStatement(LOGIN_INS_FALP_IP_LOGGING);
logstmt->setString(0, _login);
logstmt->setString(1, GetRemoteIpAddress().to_string());
logstmt->setString(2, "Logged on failed AccountLogin due wrong password");
LoginDatabase.Execute(logstmt);
}
if (MaxWrongPassCount > 0)
{
//Increment number of failed logins by one and if it reaches the limit temporarily ban that account or IP
PreparedStatement* stmt = LoginDatabase.GetPreparedStatement(LOGIN_UPD_FAILEDLOGINS);
stmt->setString(0, _login);
LoginDatabase.Execute(stmt);
stmt = LoginDatabase.GetPreparedStatement(LOGIN_SEL_FAILEDLOGINS);
stmt->setString(0, _login);
if (PreparedQueryResult loginfail = LoginDatabase.Query(stmt))
{
uint32 failed_logins = (*loginfail)[1].GetUInt32();
if (failed_logins >= MaxWrongPassCount)
{
uint32 WrongPassBanTime = sConfigMgr->GetIntDefault("WrongPass.BanTime", 600);
bool WrongPassBanType = sConfigMgr->GetBoolDefault("WrongPass.BanType", false);
if (WrongPassBanType)
{
uint32 acc_id = (*loginfail)[0].GetUInt32();
stmt = LoginDatabase.GetPreparedStatement(LOGIN_INS_ACCOUNT_AUTO_BANNED);
stmt->setUInt32(0, acc_id);
stmt->setUInt32(1, WrongPassBanTime);
LoginDatabase.Execute(stmt);
TC_LOG_DEBUG("server.authserver", "'%s:%d' [AuthChallenge] account %s got banned for '%u' seconds because it failed to authenticate '%u' times",
GetRemoteIpAddress().to_string().c_str(), GetRemotePort(), _login.c_str(), WrongPassBanTime, failed_logins);
}
else
{
stmt = LoginDatabase.GetPreparedStatement(LOGIN_INS_IP_AUTO_BANNED);
stmt->setString(0, GetRemoteIpAddress().to_string());
stmt->setUInt32(1, WrongPassBanTime);
LoginDatabase.Execute(stmt);
TC_LOG_DEBUG("server.authserver", "'%s:%d' [AuthChallenge] IP got banned for '%u' seconds because account %s failed to authenticate '%u' times",
GetRemoteIpAddress().to_string().c_str(), GetRemotePort(), WrongPassBanTime, _login.c_str(), failed_logins);
}
}
}
}
}
return true;
}
