Commit Graph

10 Commits

Author SHA1 Message Date
Phu Kieu
47897f73fa Validate audience with entityIssuer if present, use redirectURI otherwise 2017-04-06 14:40:56 -07:00
Phu Kieu
217b5ca2c7 Add ssoIssuer to fix Response issuer checking
Rename issuer to entityIssuer
2017-04-06 11:05:49 -07:00
Eric Chiang
a97cffcd52 connector/saml: refactor tests and add self-signed responses
Introduces SAML tests which execute full response processing and
compare user attributes. tesdata now includes a full, self-signed
CA and documents signed using xmlsec1.

Adds deprication notices to existing tests, but don't remove them
since they still provide coverage.
2017-04-04 11:11:35 -07:00
Eric Chiang
e0709dc2ac connector/saml: fix validation bug with multiple Assertion elements
When a SAML response provided multiple Assertion elements, only the
first one is checked for a valid signature. If the Assertion is
verified, the original Assertion is removed and the canonicalized
version is prepended to the Response. However, if there were
multiple assertions, the second assertion could end up first in the
list of Assertions, even if it was unsigned.

For example this:

    <Response>
      <!--
         Response unsigned. According to SAML spec must check
         assertion signature.
      -->
      <Assertion>
        <Signature>
          <!-- Correrctly signed assertion -->
        </Signature>
      </Assertion>

      <Assertion>
        <!-- Unsigned assertion inserted by attacker-->
      </Assertion>
    </Response>

could be verified then re-ordered to the following:

    <Response>
      <!--
         Response unsigned. According to SAML spec must check
         assertion signature.
      -->
      <Assertion>
        <!-- Unsigned assertion inserted by attacker-->
      </Assertion>

      <Assertion>
        <!-- Canonicalized, correrctly signed assertion -->
      </Assertion>
    </Response>

Fix this by removing all unverified child elements of the Response,
not just the original assertion.
2017-04-04 11:11:35 -07:00
Phu Kieu
6f9ef961bb Use etreeutils.NSSelectOne to select Assertion element 2017-03-24 11:20:53 -07:00
rithu john
59502850f0 connector: Connectors without a RefreshConnector should not return a refresh token instead of erroring 2017-03-23 14:56:34 -07:00
Eric Chiang
50b223a9db *: validate InResponseTo SAML response field and make issuer optional 2017-03-22 13:02:44 -07:00
Eric Chiang
33f0199077 *: fix spelling using github.com/client9/misspell 2017-03-20 09:16:56 -07:00
Holger Koser
e46f2ebe40 Improve SAML Signature and Response Validation
* Improve Order of Namespace Declarations and Attributes in Canonical XML. This is related to an issue in goxmldsig for which I created an [pull request](https://github.com/russellhaering/goxmldsig/pull/17).
* Do not compress the AuthnRequest if `HTTP-POST` binding is used.
* SAML Response is valid if the Message and/or the Assertion is signed.
* Add `AssertionConsumerServiceURL` to `AuthnRequest`
* Validate Status on the Response
* Validate Conditions on the Assertion
* Validation SubjectConfirmation on the Subject
2017-01-26 19:05:40 +01:00
Eric Chiang
31dfb54b6f connector: add a SAML connector 2017-01-09 18:30:58 -08:00