Should I log bearer token?

2 Answers. You should not log access tokens. Anyone who has access to access tokens can temporarily hijack those accounts. … Nevertheless, the amount of users that may be exposed from logging of these tokens makes it of serious concern.

Is it OK to log JWT token?

What Happens if Your JSON Web Token is Stolen? In short: it’s bad, real bad. Because JWTs are used to identify the client, if one is stolen or compromised, an attacker has full access to the user’s account in the same way they would if the attacker had instead compromised the user’s username and password.

Why should I add bearer to token?

The name Bearer implies that the application making the request is the bearer of the following pre-agreed token. In summary: you need to put Bearer up front to tell the server that what follows is an API token, and not something else.

Are bearer tokens secure?

OAuth 2.0 bearer tokens depend solely on SSL/TLS for its security, there is no internal protection or bearer tokens. if you have the token you are the owner. In many API providers who relay on OAuth 2.0 they put in bold that client developers should store securely and protect the token during it is transmission.

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Where should I store bearer token?

A JWT needs to be stored in a safe place inside the user’s browser. If you store it inside localStorage, it’s accessible by any script inside your page. This is as bad as it sounds; an XSS attack could give an external attacker access to the token.

Can JWT be decoded?

A valid JWT can consist of just the header and payload sections. … By design, anyone can decode a JWT and read the contents of the header and payload sections. But we need access to the secret key used to create the signature to verify a token’s integrity.

Are JWTs bad?

Bottom line. Although JWT does eliminate the database lookup, it introduces security issues and other complexities while doing so. Security is binary—either it’s secure or it’s not. Thus making it dangerous to use JWT for user sessions.

Why do we use bearer?

The Bearer Token is created for you by the Authentication server. When a user authenticates your application (client) the authentication server then goes and generates for you a Token. Bearer Tokens are the predominant type of access token used with OAuth 2.0. … You use the bearer token to get a new Access token.

Do bearer tokens expire?

The bearer token is made of an access_token property and a refresh_token property.

Token Lifecycle.

The “access_token” Lifecycle The “refresh_token” Lifecycle
Expires After 1 hour (3660 seconds) of inactivity After 336 hours (14 days) of inactivity

Is bearer token a JWT?

In essence, a JSON Web Token (JWT) is a bearer token. It’s a particular implementation which has been specified and standardised. JWT in particular uses cryptography to encode a timestamp and some other parameters.

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When should I use access token and ID token?

The ID Token is a security token granted by the OpenID Provider that contains information about an End-User. … Access tokens, on the other hand, are not intended to carry information about the user. They simply allow access to certain defined server resources.

Should I use oauth or JWT?

If you want to do real logout you must go with OAuth2. Authentication with JWT token can not logout actually. Because you don’t have an Authentication Server that keeps track of tokens. If you want to provide an API to 3rd party clients, you must use OAuth2 also.

When should I use an ID token?

Information in ID Tokens allows the client to verify that a user is who they claim to be. ID tokens are intended to be understood by third-party applications. ID tokens should not be used for authorization purposes. Access tokens are used for authorization.

Should I save token localStorage?

Most developers are afraid of storing tokens in LocalStorage due to XSS attacks. While LocalStorage is easy to access, the problem actually runs a lot deeper. In this article, we investigate how an attacker can bypass even the most advanced mechanisms to obtain access tokens through an XSS attack.

Is it safe to store token in cookies?

With cookies, the access token is still hidden, attackers could only carry out “onsite” attacks. The malicious scripts injected into the web app could be limited, or it might not be very easy to change/inject more scripts. Users or web apps might need to be targeted first by attackers.

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Is it good to store token in localStorage?

Local storage is vulnerable because it’s easily accessible using JavaScript and an attacker can retrieve your access token and use it later. However, while httpOnly cookies are not accessible using JavaScript, this doesn’t mean that by using cookies, you are safe from XSS attacks involving your access token.