public TlsEvaluatorResult Test(ConnectionResults tlsConnectionResults)
{
TlsConnectionResult tlsConnectionResult = tlsConnectionResults.TlsSecureDiffieHellmanGroupSelected;
switch (tlsConnectionResult.Error)
{
case Error.HANDSHAKE_FAILURE:
case Error.PROTOCOL_VERSION:
case Error.INSUFFICIENT_SECURITY:
return(new TlsEvaluatorResult(EvaluatorResult.PASS));
case Error.TCP_CONNECTION_FAILED:
case Error.SESSION_INITIALIZATION_FAILED:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
string.Format(intro,
$"we were unable to create a connection to the mail server. We will keep trying, so please check back later. Error description \"{tlsConnectionResult.ErrorDescription}\".")));
case null:
break;
default:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
string.Format(intro,
$"the server responded with an error. Error description \"{tlsConnectionResult.ErrorDescription}\".")));
}
switch (tlsConnectionResult.CurveGroup)
{
case CurveGroup.Ffdhe2048:
case CurveGroup.Ffdhe3072:
case CurveGroup.Ffdhe4096:
case CurveGroup.Ffdhe6144:
case CurveGroup.Ffdhe8192:
case CurveGroup.UnknownGroup2048:
case CurveGroup.UnknownGroup3072:
case CurveGroup.UnknownGroup4096:
case CurveGroup.UnknownGroup6144:
case CurveGroup.UnknownGroup8192:
return(new TlsEvaluatorResult(EvaluatorResult.PASS));
case CurveGroup.UnknownGroup1024:
return(new TlsEvaluatorResult(EvaluatorResult.WARNING,
string.Format(intro, $"the server selected an unknown 1024 bit group. {advice}")));
case CurveGroup.Java1024:
case CurveGroup.Rfc2409_1024:
case CurveGroup.Rfc5114_1024:
return(new TlsEvaluatorResult(EvaluatorResult.FAIL,
string.Format(intro,
$"the server selected {tlsConnectionResult.CurveGroup.GetEnumAsString()} which is an insecure 1024 bit (or less) group. {advice}")));
case CurveGroup.Unknown:
return(new TlsEvaluatorResult(EvaluatorResult.FAIL,
string.Format(intro,
$"the server selected an unknown group which is potentially insecure. {advice}")));
}
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
string.Format(intro, "there was a problem and we are unable to provide additional information.")));
}
public void UnaccountedForCipherSuiteResponseShouldResultInInconclusive()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, CipherSuite.TLS_DHE_DSS_WITH_CAMELLIA_256_CBC_SHA, null, null, null, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Ssl3FailsWithBadCipherSuite, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void ConnectionRefusedErrorsShouldResultInPass(Error error)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(error, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Ssl3FailsWithBadCipherSuite, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.PASS);
}
public void AnErrorShouldResultInInconslusive()
{
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureEllipticCurveSelected,
new TlsConnectionResult(Error.CERTIFICATE_UNOBTAINABLE, null, null));
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void InsecureCipherSuitesShouldResultInFail(CipherSuite cipherSuite)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, cipherSuite, null, null, null, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Ssl3FailsWithBadCipherSuite, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.FAIL);
}
public void NoPfsCipherSuiteShouldResultInWarning(CipherSuite cipherSuite)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, cipherSuite, null, null, null, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Ssl3FailsWithBadCipherSuite, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.WARNING);
}
public TlsEvaluatorResult Test(ConnectionResults tlsConnectionResults)
{
TlsConnectionResult tlsConnectionResult = tlsConnectionResults.TlsWeakCipherSuitesRejected;
switch (tlsConnectionResult.Error)
{
case Error.HANDSHAKE_FAILURE:
case Error.PROTOCOL_VERSION:
case Error.INSUFFICIENT_SECURITY:
return(new TlsEvaluatorResult(EvaluatorResult.PASS));
case Error.TCP_CONNECTION_FAILED:
case Error.SESSION_INITIALIZATION_FAILED:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
$"{intro} we were unable to create a connection to the mail server. We will keep trying, so please check back later. Error description \"{tlsConnectionResult.ErrorDescription}\"."));
case null:
break;
default:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
$"{intro} the server responded with an error. Error description \"{tlsConnectionResult.ErrorDescription}\"."));
}
if (tlsConnectionResult.CipherSuite != null)
{
return(new TlsEvaluatorResult(EvaluatorResult.FAIL, $"{intro} the server accepted the connection and selected {tlsConnectionResult.CipherSuite.GetEnumAsString()}."));
}
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE, $"{intro} there was a problem and we are unable to provide additional information."));
}
public TlsEvaluatorResult Test(ConnectionResults tlsConnectionResults)
{
TlsConnectionResult tlsConnectionResult = tlsConnectionResults.Tls11AvailableWithWeakCipherSuiteNotSelected;
TlsConnectionResult tls12AvailableWithBestCipherSuiteSelectedResult = tlsConnectionResults.Tls12AvailableWithBestCipherSuiteSelected;
switch (tlsConnectionResult.Error)
{
case Error.HANDSHAKE_FAILURE:
case Error.PROTOCOL_VERSION:
case Error.INSUFFICIENT_SECURITY:
return(new TlsEvaluatorResult(EvaluatorResult.PASS));
case Error.TCP_CONNECTION_FAILED:
case Error.SESSION_INITIALIZATION_FAILED:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
string.Format(intro,
$"we were unable to create a connection to the mail server. We will keep trying, so please check back later. Error description \"{tlsConnectionResult.ErrorDescription}\".")));
case null:
break;
default:
return(tls12AvailableWithBestCipherSuiteSelectedResult.Error == null
? new TlsEvaluatorResult(EvaluatorResult.WARNING,
string.Format(intro,
$"the server responded with an error. This may be because you do not support TLS 1.0. Error description \"{tlsConnectionResult.ErrorDescription}\"."))
: new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE,
string.Format(intro,
$"the server responded with an error. Error description \"{tlsConnectionResult.ErrorDescription}\".")));
}
switch (tlsConnectionResult.CipherSuite)
{
case CipherSuite.TLS_RSA_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_RSA_WITH_RC4_128_SHA:
case CipherSuite.TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA:
return(new TlsEvaluatorResult(EvaluatorResult.PASS));
case CipherSuite.TLS_RSA_WITH_RC4_128_MD5:
case CipherSuite.TLS_NULL_WITH_NULL_NULL:
case CipherSuite.TLS_RSA_WITH_NULL_MD5:
case CipherSuite.TLS_RSA_WITH_NULL_SHA:
case CipherSuite.TLS_RSA_EXPORT_WITH_RC4_40_MD5:
case CipherSuite.TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5:
case CipherSuite.TLS_RSA_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_RSA_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_DH_DSS_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_DH_RSA_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_DHE_DSS_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA:
return(new TlsEvaluatorResult(EvaluatorResult.FAIL, string.Format(intro, $"the server selected {tlsConnectionResult.CipherSuite.GetName()} which is insecure")));
}
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE, string.Format(intro, "there was a problem and we are unable to provide additional information.")));
}
public void ConnectionRefusedErrorsShouldResultInPass(Error error)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(error, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls12AvailableWithWeakCipherSuiteNotSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.PASS);
}
public void InsecureCiphersShouldResultInAFail(CipherSuite cipherSuite)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, cipherSuite, null, null, null, null, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls12AvailableWithWeakCipherSuiteNotSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.FAIL);
}
public void Unknown1024GroupShouldResultInAWarn()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, null, CurveGroup.UnknownGroup1024, null, null, null, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureDiffieHellmanGroupSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.WARNING);
}
public void NoCipherSuiteResponseShouldResultInInconclusive()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, null, null, null, null, null, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsWeakCipherSuitesRejected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void AnErrorShouldResultInAFail()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(Error.INSUFFICIENT_SECURITY, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls12AvailableWithSha2HashFunctionSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.FAIL);
}
public void AnErrorShouldResultInAWarning()
{
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(
TlsTestType.Tls12AvailableWithBestCipherSuiteSelectedFromReverseList,
new TlsConnectionResult(Error.BAD_CERTIFICATE, null, null));
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.WARNING);
}
public void AnErrorShouldResultInAFail()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(Error.INSUFFICIENT_SECURITY, "Insufficient security", null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls11AvailableWithBestCipherSuiteSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.FAIL);
}
public void ConnectionRefusedErrorsShouldResultInPass(Error error)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(error, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureDiffieHellmanGroupSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.PASS);
}
public void OtherErrorsShouldResultInInconclusive()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(Error.INTERNAL_ERROR, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureDiffieHellmanGroupSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void TcpErrorsShouldResultInInconclusive(Error error)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(error, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls12AvailableWithSha2HashFunctionSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void GoodCurveGroupsShouldResultInAPass(CurveGroup curveGroup)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, null, curveGroup, null, null, null, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureDiffieHellmanGroupSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.PASS);
}
public void GoodCiphersShouldResultInAPass(CipherSuite cipherSuite)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, cipherSuite, null, null, null, null, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls12AvailableWithSha2HashFunctionSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.PASS);
}
public void OtherErrorsShouldResultInInconclusive()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(Error.INTERNAL_ERROR, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls12AvailableWithWeakCipherSuiteNotSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void CipherSuitesWithNoPfsShouldResultInAWarning(CipherSuite cipherSuite)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, cipherSuite, null, null, null, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls10AvailableWithBestCipherSuiteSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.WARNING);
}
public void CurvesWithCurveNumberLessThan256ShouldResultInAFail(CurveGroup curveGroup)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, null, curveGroup, null, null, null, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureEllipticCurveSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.FAIL);
}
public void AnErrorShouldResultInAFail()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(Error.ACCESS_DENIED, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls10AvailableWithBestCipherSuiteSelected,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.FAIL);
}
public void UnaccountedForCurveShouldResultInInconclusive()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null, null, null, null, null, null, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.TlsSecureEllipticCurveSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
}
public void ErrorsShouldHaveErrorDescriptionInResult(Error error, string description)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(error, description, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(TlsTestType.Tls10AvailableWithBestCipherSuiteSelected, tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.INCONCLUSIVE);
StringAssert.Contains($"Error description \"{description}\".", _sut.Test(connectionResults).Description);
}
public void ConnectionRefusedErrorsShouldResultInPassWithoutErrorDescription(Error error, string description)
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(error, null, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Ssl3FailsWithBadCipherSuite, tlsConnectionResult);
TlsEvaluatorResult result = _sut.Test(connectionResults);
Assert.AreEqual(result.Result, EvaluatorResult.PASS);
Assert.That(result.Description, Is.Null);
}
public void OtherErrorsShouldResultInInconclusive()
{
string errorDescription = "Something went wrong!";
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(Error.INTERNAL_ERROR, errorDescription, null);
ConnectionResults connectionResults = TlsTestDataUtil.CreateConnectionResults(TlsTestType.Ssl3FailsWithBadCipherSuite, tlsConnectionResult);
TlsEvaluatorResult result = _sut.Test(connectionResults);
Assert.AreEqual(result.Result, EvaluatorResult.INCONCLUSIVE);
StringAssert.Contains($"Error description \"{errorDescription}\".", result.Description);
}
public TlsEvaluatorResult Test(ConnectionResults tlsConnectionResults)
{
TlsConnectionResult tlsConnectionResult = tlsConnectionResults.Ssl3FailsWithBadCipherSuite;
switch (tlsConnectionResult.Error)
{
case Error.HANDSHAKE_FAILURE:
case Error.PROTOCOL_VERSION:
case Error.INSUFFICIENT_SECURITY:
return(new TlsEvaluatorResult(EvaluatorResult.PASS));
case Error.TCP_CONNECTION_FAILED:
case Error.SESSION_INITIALIZATION_FAILED:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE, string.Format(intro, $"we were unable to create a connection to the mail server. We will keep trying, so please check back later. Error description \"{tlsConnectionResult.ErrorDescription}\".")));
case null:
break;
default:
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE, string.Format(intro, $"the server responded with an error. Error description \"{tlsConnectionResult.ErrorDescription}\".")));
}
string introWithCipherSuite = string.Format(intro,
$"the server accepted the connection and selected {tlsConnectionResult.CipherSuite.GetEnumAsString()}");
switch (tlsConnectionResult.CipherSuite)
{
case CipherSuite.TLS_RSA_WITH_RC4_128_SHA:
case CipherSuite.TLS_DH_DSS_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_DH_RSA_WITH_3DES_EDE_CBC_SHA:
return(new TlsEvaluatorResult(EvaluatorResult.WARNING,
$"{introWithCipherSuite}. {advice}"));
case CipherSuite.TLS_RSA_WITH_RC4_128_MD5:
case CipherSuite.TLS_NULL_WITH_NULL_NULL:
case CipherSuite.TLS_RSA_WITH_NULL_MD5:
case CipherSuite.TLS_RSA_WITH_NULL_SHA:
case CipherSuite.TLS_RSA_EXPORT_WITH_RC4_40_MD5:
case CipherSuite.TLS_RSA_EXPORT_WITH_RC2_CBC_40_MD5:
case CipherSuite.TLS_RSA_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_RSA_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DH_DSS_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_DH_DSS_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DH_RSA_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_DH_RSA_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DHE_DSS_EXPORT_WITH_DES40_CBC_SHA:
case CipherSuite.TLS_DHE_DSS_WITH_DES_CBC_SHA:
case CipherSuite.TLS_DHE_RSA_EXPORT_WITH_DES40_CBC_SHA:
return(new TlsEvaluatorResult(EvaluatorResult.FAIL,
$"{introWithCipherSuite} which is insecure. {advice}"));
}
return(new TlsEvaluatorResult(EvaluatorResult.INCONCLUSIVE, string.Format(intro, "there was a problem and we are unable to provide additional information.")));
}
public void PreviousTestBeingInconclusiveShouldResultInPass()
{
TlsConnectionResult tlsConnectionResult = new TlsConnectionResult(null,
CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, null, null, null, null, null, null);
ConnectionResults connectionResults =
TlsTestDataUtil.CreateConnectionResults(
TlsTestType.Tls12AvailableWithBestCipherSuiteSelectedFromReverseList,
tlsConnectionResult);
Assert.AreEqual(_sut.Test(connectionResults).Result, EvaluatorResult.PASS);
}