Questions tagged [saml]
An open Single Sign On (SSO) solution for the web, a problem also addressed by OpenID.
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Security concerns to proxy a SAML flow via regular HTTP basic authentication
I have an iDP, a server and a browser-based client application executing the SAML flow to get the assertion sent to the server. Communication between client and server and iDP is HTTPS. All that is ...
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Secure ADFS behind HAProxy
We use ADFS within our organisation, and it is available via HTTP externally.
All of the applications we protect with ADFS are SP-initiated, so I want to disallow requests to ADFS other than SP-...
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in Saml Federation, can one Idp serve as a facade for authentication against multiple "back end" IdP's
Question
In Saml Federation, can one Idp serve as a front-end proxy for authentication against multiple "back end" IdP's
Context
our multi-tenant application suports SAML for Authentation ...
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SAML Authentication Across multiple Service providers
I am in the process of building an integration between 2 service providers (SP). I have setup my own Identity Provider, KeyCloak.
What I am trying to achieve is as follows: A user signs into SP1 using ...
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Is an empty `<OrganizationURL />` within a Federation Metadata XML file considered invalid?
I have an IdP who produces metadata federation XML files where the <OrganizationURL /> element is empty. See the example below:
<Organization>
<OrganizationName xml:lang="en&...
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SAML AuthnRequest encryption
I would like to make sure that SAML login is secure. Company mandates to sign and encrypt SAML, and most of the assertions are encrypted and signed already, although I have received an answer from a ...
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Is it possible to combine SAML 2.0 SSO with session login of QR Code
I was wondering if it is possible to combine SAML 2.0 SSO with QR Code scanning or fundamentally it is not possible?
If a session exists in one device the user can scan it with her chell phone and ...
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In a SAML Response what is the need to sign both things, the complete SAML Response and the SAML Assertion?
SAML Response + SAML Assertion are both signed individually while sending back the response.
But the SAML Response contains the SAML Assertion. The latter is actually a subset of the former. Then what ...
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Couldn't an attacker alter a SAML Response data along with the signature and digest?
Based on my understanding, the way signatures are generated in a SAML response is like this:
Pick the SAML Response (without the signature block)
Use the Service Provider's public key to generate a ...
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How is it decided whether a SAML setup should use HTTP GET or POST?
I'm reading about SAML Authentication and I've come across 2 different mechanisms. But I'm not seeing any proper explanation anywhere of which flow is used when.
If you're creating a SAML service ...
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How is the encryption and signing handled in case of an HTTP 302 redirect to IDP for a SAML authentication request?
When an SAML Authentication request is performed, let's say that the Service Provider uses an HTTP 302 redirect. The user agent is redirected to the IdP via a GET request. This URL is provided by the ...
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Can someone please clarify about how the SAML response is sent back from IdP to SP
Traditionally an SSO SAML request for the authentication works as follows:
The user agent sends the request to the SP asking for some resource
SP sends a SAML authentication request to IdP. This can ...
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Protocols used during a Single Sign-On between Okta Universal Directory and AWS IAM Identity Center(aka SSO)
Single Sign-On between Okta Universal Directory and AWS allows users in your company using OKTA to connect to AWS using SSO after first agreeing and setting up the use of identities by AWS IAM ...
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IdP Personal/Signer Certificates
We are implementing SAML/OIDC-based SSO across our enterprise and wanted to get a feel for best practices when it comes to using Personal/Signer Certificates within our IdP.
Historically we've ...
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Using Certificates between IdP and SP
I'm studying a lot about SSO but still having difficultly in understanding which flows need certificates and at which end(SP or IdP). Currently in my system, Salesforce is used as SP and Azure AD is ...
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Can I combine OpenID Connect and SAML2 protocols in OpenAM
We are using Forgerock OpenAM for managing authentication and authorization and I was wondering if it is possible to use this configuration:
Domain 1 -> App 1 -> Use SAML2
Domain 1 -> App 2 -...
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How does the SAML based SSO differ for Internal (employees) and External users (external resources)?
We are trying to set up(I am not part of the setting up process) an SSO based login for an ITSM application. Our organisation has some users working for us although they use their own organisation ...
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Security aspects in SAML2 using configuration with metadata URI
I have an app where I may choose to configure SAML2 login in the app with:
Public cert of IdP
IdP SAML2 login URL
IdP entity ID
I may also choose to, instead, provide an HTTPS metadata URL from ...
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Is it inappropriate at all for someone in my client organization to email their PEM file to me?
I have a SAML offering for my clients to access my cloud based application. Should I have a portal for them to upload their certificates or should I go the easy route and just have them e-mail them to ...
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Other than domain, what other attribute can SAML work with?
I am very new to SAML and currently doing research on whether SAML is the right solution for me.
All the SAML examples that I can find work on the email domain. I wonder if it is possible to build a ...
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Does it make sense to split two factor authentication between identity providers
A common multi factor authentication solution will ask a user for a username+password and a one-time password.
In all documents I can find both factors are asked by the same identity provider. This ...
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SSO - SAMLResponse security via localhost reply [duplicate]
We're currently in the process of enhancing our Windows .NET desktop application with SAML single sign-on. In order to retrieve the SAMLResponse from the IP we have the redirect/reply URL set to http:/...
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SAML and privacy: does the Identity Provider have to know about the Service Provider?
Does the SAML Identity Provider have to know which Service Provider the User is trying to authenticate with, during a Single Sign-On?
By looking at the specs, I see references to various elements that ...
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SAML/oauth2/openid-connect login via proxy as another user
I manage a set of service providers (SP1, SP2, SP3, etc), and we currently have this SAML SSO flow working where the SP causes a POST submit to the SAML IDP with an XML SAML request which includes an ...
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How does one detect and deter golden SAML attacks?
How does one defend, detect and deter golden SAML attacks?
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SolarWinds Orion SAML compromise mass cert update
SolarWinds Orion customers have suffered some network compromises according to news reports.
One report says, right at the end of the article, that SAML2.0 signing certificates may have been ...
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Why is SAML still used for enterprise SSO instead of OIDC?
Im trying to wrap my head around the difference between SAML/OIDC/and OAuth
Is the only reason SAML is the most popular choice for enterprise SSO that its been around much longer? Is it expected to ...
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How an IDP sends SAML assertion to an SP?
I'm new to security concepts. I am studying how SAML works and I'm confused about how IDP sends SAML assertion to SP. I searched on the internet and I found out two scenarios are possible.
First is ...
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SSO SAML2: validating/verifying the SAMLResponse at the ACS
So it's unclear how much more security needs to happen at the ACS point.
I can see that the IDP signs a signature that involves a certificate and private key.
The SP can verify the signature with the ...
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Verifying the security of SAML SSO
I run an instance of a log aggregation product in the cloud, installed on a VM. I've strictly configured it's networking settings, internal firewall, internal port redirection, strong admin password, ...
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How does encryption, certificates in an end to end SSO flow?
So, I know how public-private key encryption works. I understand how/why certificates are required. I understand how a SSO flow (IdP initiated) works. But, I do not understand how the three of them ...
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OAuth2, SAML, OpenID connect - Which one to use for my scenario?
I work for a company where we give customer (hundreds/thousands of users) access to 2 sites. One owned by a 3rd party SaaS and one owned by us. Customers spend alot of time registering for both sites ...
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How to decrypt encrypted SAML assertion using private RSA key?
Our system supports SAML2 and acts as service provider. Our customer uses ADFS as identity provider. Metadata has been exchanged and the connection works. Unfortunately our system complains about the ...
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209
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App-to-app or service-to-service authentication using federated login
I have an application Foo that exposes a web-based portal as well as a REST API service via HTTPS.
When a human user connects to the app Foo to use its web-based portal, the human user is first ...
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Do SAML responses containing encrypted assertions provide protection against MiTM attacks?
A previously asked question touches on topics which are very similar to what I am having trouble understanding.
In a web application I am testing, SAML SSO is brokered using Keycloak. The SAML ...
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Automating SAML login for service users?
Is it possible to fully automate the login of a service user (i.e. a programmatic, software based "user") without user interaction?
I have a service provider that's SAML protected. Basic Auth and ...
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Should a SAML Assertion whose SessionNotOnOrAfter value is exactly the same value as its AuthnInstant be treated as having an invalid session?
I am receiving SOAP requests with SAML AuthnStatements whose SessionNotOnOrAfter timestamp is EXACTLY the same value as its AuthnInstant:
<saml:AuthnStatement AuthnInstant="2020-04-22T21:11:41....
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Is this possible in SAML?
Scenario: Consider a huge and diverse federation of Identity (IDPs) and Service (SPs) providers. Since trust level is generally low, Identity providers are reluctant to give out any kind of personal ...
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SAML and Multi-factor auth
I have an application that is a SAML SP, authenticating users via inbound SAML assertions from some other IdP.
If I want to require multi-factor auth, is it a common practice to add multi-factor auth ...
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Security of a web app with AzureAD auth
The company I work for is about to publish a custom web app (hosted in AWS) that authenticates through AzureAD.
That way, when someone goes to https://www.mywebap.com it is redirected to AzureAd and, ...
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SSO SP Initiated Single Sign Out - User Experience
I work on a software product that allows customers to use SAML or OAuth provisioning to their users. e.g to Azure AD.
Now non technical savvy users understandably presume that logging off from our ...
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SSO and browser vs. server
We've got implementations in a browser-based system right now that does both SAML and OpenID-connect login support, but does them differently and was looking for advice on the risks.
Our SAML ...
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SAML Passing a JWT token from the API to the SPA application
We are trying to implement the SAML 2.0 protocol and I stumbled upon a problem related to passing the token from the API to the client SPA application.
The authentication flow goes like this: the ...
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Could SAML assertion/token be shared or reused between service providers?
SAML noob here, I have an idea implementing permission(authorization) outside of IdP, which effectively become a "Permission Service Provider", so say when an application (another service provider) ...
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Why sign SAML authentication requests
In SAML, signing or encrypting the assertions seems to be essential, but I'm not finding much information describing any benefits or drawbacks of signing the authentication request in real world "...
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why use a CA-signed key pair to encrypt SAML2 assertions?
I have a customer who insists upon using only certificate-authority signed key-pair certificates for encrypting SAML2 assertions.
In this use case, I hold the private key in my Service Provider, and ...
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HTTP Response to a SAMLResponse POST by user agent
Looking at RFC2616, is it acceptable to return an HTTP 200 (page load) as a response to a SAMLResponse post to the SP? i.e. the user-agent loads a page instead of redirecting via a 302 / 303?
Looking ...
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SSO Log Users Out Based on IP Address
We would like to implement SAML based SSO for our organization. We do not want employees to be able to access specific accounts outsides of specific hours and IP ranges. (We do not want to setup a VPN ...
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Are the default Azure AD Authentication Certificates global?
When authenticating against an AzureAD instance (using WS-Federation and SAML 2 tokens) the relying/authenticating application requests authentication metadata from a fixed URL on the auth servers, ...
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Is there a way to configure Azure AD SSO to ignore SP forceAuthn parameter?
I am trying to workaround an annoying cloud based SP initiated sign-on parameter, forceAuthn, the SP includes this in their assertion and is set to true. They do this to ensure compliance with some of ...
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