Questions tagged [single-sign-on]

Single Sign On (SSO) is the process of authenticating once against a single system to gain access to multiple (often unrelated) systems.

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28 views

Kerberos with HTTP Resource Server Login

I am having an http (IIS) resource server which uses Kerberos 5 for authentication. Every time I reach the page I need to key in my username and password but if I have done kinit in my machine (...
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30 views

encrypt/decrypt arbitrary data provided in custom attribute by IdP in SSO scenario

I am considering the following design for application with client-side encryption Let' say we have web application that manages/stores sensitive business data of users, and we do not want to know ...
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1answer
70 views

How does the browser know windows logged in user id or Kerberos TGT?

My organization uses SSO for its applications i.e. Once a user logs into his Windows 10 workstation, he accesses his web application without login. I was informed that the web applications uses NetIQ ...
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94 views

What are some reasons a company should not go with single sign on?

A company I am working for is advocating for single sign on for their Ecommerce site and an Online clinical testing platform that contain sensitive patient information. My concern is the sensitive ...
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2answers
79 views

Passing Data between Mobile / Web Apps

We have a third party mobile app that will link to a dashboard in our web app. The user id needs to be passed from the mobile app to the web app in this interaction so that we can retrieve the user's ...
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27 views

How to reflash/reformat enterprise Aladdin eToken Pro Java 72k for own certificate? [closed]

Is this eToken can be reformatted or re-flashed for using as smart-card for authentication? I have this stick left from my former work and wanna re-use it some way, for example, for authentication in ...
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44 views

Is there any advantage in using Google's IAM on Android?

We are building a few corporate apps for field workers / front office. In most cases each user will have their own device, but there are some shared devices (for example reception). The devices are ...
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26 views

Is multiple redirect query string request safe?

We have implemented our own single sign-on on our internal and external applications. The flowchart looks like this: We are using https on both the App and the Single Sign-On, and we pass values ...
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57 views

Poor Man's OAuth Grant - Review

A 3rd party company has requested that we implement single sign-on with them using the below approach. I'm familiar with OAuth grants and OIDC flows but this seems rather odd to me. The user has ...
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2answers
7k views

How do universities and schools securely sync passwords between multiple services?

I'm a student and it seems every school or university I have been to has one password that you set for your user account for logging in to university services, which is also then synced to external ...
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1answer
52 views

Is providing authentication data for other web applications unsecure?

I started to work on a company whose software engineers tried to reinvent everything. They did not use(or know) industry standarts and for authentication, they use their custom solution. Their "...
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91 views

What is the essence of Google Chrome’s new controversial sign-in feature?

What is the essence of Google Chrome’s new controversial sign-in feature? How does it work and how does it differ from what was it before? What is the danger of it? Is Chromium affected?
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1answer
115 views

How to protect a login page redirect

I have several web based applications that will redirect unauthenticated users to an ADFS sign-in page. ADFS will subsequently redirect users back to a web application once authenticated with a token. ...
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1answer
174 views

How to setup SAML?

I am learning about SAML and already read many articles and forums but I still having confusion about setup IdP. I am using "https://simplesamlphp.org/" For example, I have 3 websites "example.com", "...
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1answer
104 views

Risks for implementing single sign on

I'm working with an organization that's integrating a lot of apps with LDAP in a Windows environment. They are doing a good job of implementing least privilege, so there aren't a lot of scenarios ...
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73 views

Parent domain cookies for Single Sign on

Typically Single Sign On is implemented with existing protocols like SAML or OAuth. If all the sites belongs to the same parent domain such as a.example.com and b.example.com, we can also set a ...
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1answer
248 views

Opening browser with already authenticated user in other app

Scenario: I'm logged in some (java - swing) application. The authentication is typical: login and password checked by server (J2EE) on client application start, after that normal work in app including ...
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1answer
732 views

Is the idea of Single Sign-On (SSO) a flawed concept without Two-Factor Authentication (2FA)?

Before this gets flagged as a duplicate, I'm not asking a question about the disadvantages of single sign-on, I'm asking if the initial concept is flawed to begin with without enforcing two-factor ...
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757 views

Examples of Federated Identity Management, Third Party Identity Services and Single Sign-On

I am studying the domain of Identity and Access Management in CISSP, and I come across the three terms Federated Identity Management (FIM), Third Party Identity Services (3PIS) and Single Sign-On (SSO)...
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2answers
2k views

Is there any security difference between login via iFrame, Pop-up, or redirect?

There seems to be a number of techniques to authenticate a person on the web. Most commonly there are Javascript Pop-ups (Google, Firefox Persona, Disqus, etc) HTTP Redirects (OAuth, Facebook) ...
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17 views

Does Thinktecture V2 Require Round Trips on Requests

I am learning about the Thinktecture Identity Server v2 and considering deploying it as a single sign on solution for 3 to 4 apps/services our company is developing for our customers. The applications ...
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2answers
282 views

Solutions for accessing webapp from inside and outside the corporate perimeter by same users?

I'm looking for solutions that could best address the following requirements. We plan to develop a webapp and deploy it in the cloud. Corporate users must be able to access the webapp from the ...
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2answers
2k views

Single Sign On vs NT Authentication

I did some Googling on this and I can't seem to find a direct answer. What is the difference between SSO and NT Authentication? Is SSO a type of NT Authentication? Are they related at all? I'm a ...
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1answer
713 views

Encrypting data and SSO

I provide a service in which users can store data, files, etc in an encrypted form. The service that I have built has two applications for the user's password with which they login to my service: 1) ...
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1answer
467 views

What is the security benefit of using PostMessage instead of a callback URL in OAuth/OIDC?

Of all the issuers I've found, (Facebook, Twitter, Azure AD, etc) only Apple's CloudKit has the feature of "post message" as a callback (unless it's buried in the other's SDK) Here is a screenshot of ...
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3answers
919 views

Why should the value of the cookie be encrypted?

I am working at a SSO project right now with CAS. I am using an RESTful API for communication with desktop-applications. The value of the Ticket Granting Cookie is encrypted. At first I didn't think ...
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2answers
497 views

Is MD5 suitable for single sign on?

We are using an application which offers single sign to their systems which is then embedded as an iframe (i.e. the URL is visible in the source of the page) The SSO security comes from using MD5 to ...
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227 views

Logout from IdP, where should user end up?

When a user clicks Logoff on my website, it executes the following .NET code: public ActionResult SLOService() { // Receive the single logout request or response. // If a request is received ...
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1answer
1k views

How to know which secret key to use to create and verify JWT

We have several websites where users have to log in. For each website we want to support a single signon solution based on JWTs (JSON Web token). There are also several (other) websites that can act ...
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2answers
779 views

Is “sign in with Facebook”, “sign in with Google”, etc. bad for security? [duplicate]

Is "sign in with Facebook", "sign in with Google", etc. bad for security? A hacker only needs to compromise your Facebook/Google/Yahoo/etc. account, and they'll have access to all of your other ...
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1answer
153 views

How can I be sure if a webview in a desktop app shows the real web page?

When installing Postman (on Mac), you can log on using your Google account. For this, the logon view from Google is shown in a window (A kind of Webview I assume). How can I be sure this is the real ...
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3answers
761 views

How does Single Sign On limit phishing risk

I was reading this article about SSO benefits and this sentence intrigues me : Can reduce phishing – Phishing, a fraudulent process where victims are tricked into giving away sensitive user ...
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2answers
415 views

Are third party authentification provider included via iframe by default considered (in)secure?

Authentification provider X is used by many non-related websites like A, B and C as (sole) authentification provider. X therefor provides a framework for athentification which includes a login form ...
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199 views

Low-resolution account enumeration with Office365

I am interested in the intersection of account enumeration and single sign-on. Often, there will be SSO-only and non-SSO users alongside each other in an application, and in terms of improved ...
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0answers
70 views

What is the most secure method for web session handling for multiple domain?

Based on the current standing of web security, what is the most secure / recommended method for web session handling: session cookies, cookie jars, web tokens, or anything else? The requirement is to ...
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2answers
101 views

Legality of cookie(set by other sites) tracking

I have created a website A which asks username & password, there exists another closed source website B which again asks for login credentials. A user uses both these websites .I want to ...
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93 views

What are appropriate measures to only allow logins from a given trusted OpenID-Provider?

I have a bunch of applications, where users need to log in. Not everyone can be a user, each user has to be approved of by an admin. The authentication should be a SSO solution, where user accounts ...
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3answers
2k views

Does it have sense a One-Time Session Cookie?

Recently I have faced a site that seems to implement something that we can call "one-time cookie". This cookie is used for single-sign on among different sites. In each request the server sends a Set-...
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7answers
107k views

What is the difference between Federated Login and Single Sign On?

What is the difference between Federated Login and Single Sign On authentication methods?