SAML Auth with Azure AD

[olivierlambert]

Hi,

Yes it was. You need to be sure that your SAML provider used the signed SAML assertion.

Examples in Keycloak then Azure respectively:

[nathanael-h]

@Mathieu yes indeed, I worked on this with @pierrebrunet PR https://github.com/vatesfr/xen-orchestra/pull/9042
Do you have any logs in xo-server service?

pierrebrunet289 opened this pull request in vatesfr/xen-orchestra

closed chore: update packages #9042

[pierrebrunet]

@Mathieu Hi, you need to be sure to have signed assertion and signed response because only one won't be enough.

We have updated the doc when you saw the impact. Sorry for the inconvenience:
https://github.com/vatesfr/xen-orchestra/pull/9084/files#diff-6319d6b750c3bdbca61a9d9a1577a8aa4fa3a8a37764b91aef4672f69403baa4R221

pierrebrunet289 opened this pull request in vatesfr/xen-orchestra

closed chore: update doc for SAML due to breaking changes in config #9084

[Mathieu]

@pierrebrunet

Hello,

I've updated the cert with signed assertion and response

I also tried with a brand new certificate.

Unfortunately, login is still failing.

From xo-server:

Oct 09 08:11:17 xo-ce xo-server[272092]: Error: SAML assertion audience mismatch. Expected: 1671ff50-10e1-4a02-a0c5-4ed298898281 Received: https://XO_DNS_RECORD/
Oct 09 08:11:17 xo-ce xo-server[272092]:     at /opt/xo/xo-builds/xen-orchestra-202510090759/node_modules/@node-saml/node-saml/src/saml.ts:1264:18
Oct 09 08:11:17 xo-ce xo-server[272092]:     at Array.map (<anonymous>)
Oct 09 08:11:17 xo-ce xo-server[272092]:     at SAML.checkAudienceValidityError (/opt/xo/xo-builds/xen-orchestra-202510090759/node_modules/@node-saml/node-saml/src/saml.ts:1259:8)
Oct 09 08:11:17 xo-ce xo-server[272092]:     at SAML.processValidlySignedAssertionAsync (/opt/xo/xo-builds/xen-orchestra-202510090759/node_modules/@node-saml/node-saml/src/saml.ts:1151:32)
Oct 09 08:11:17 xo-ce xo-server[272092]:     at SAML.validatePostResponseAsync (/opt/xo/xo-builds/xen-orchestra-202510090759/node_modules/@node-saml/node-saml/src/saml.ts:808:16)

And here is the plug-in configuration:

I'm not expert at all in SAML, sorry not being able to debug deeper.

[pierrebrunet]

@Mathieu Hello, can you show us your plugin configuration (without the certificate for security purpose) please?

Edit: thank you!

[Mathieu]

@pierrebrunet Just posted it above

[pierrebrunet]

@Mathieu Hi, do you use XO from source or do you have an XOA license? Just to know how to help you more confortably

[Mathieu]

@pierrebrunet
XO from source, commit 1ee07 from today.

[pierrebrunet]

@Mathieu Thanks to your help, we are deploying a patch with config update and control over document and assertion signatures
https://github.com/vatesfr/xen-orchestra/pull/9093

pierrebrunet289 opened this pull request in vatesfr/xen-orchestra

closed fix(plugin/auth-saml): add default config in SAML #9093

[pierrebrunet]

@Mathieu Hi,
We merged the PR linked above with new options. If you have time, can you confirm it is working for you?
It will fix the audience error and let you choose if you want to sign responses and assertions.

[probain]

@pierrebrunet
I'm jumping in here as well. Reporting that the PR fixes it for Google Workspace as well!
However, the checkbox in GW is called "Signed response".
No further adjustments of the plugin itself was needed.