The Azure AD Doc mentioned a very broad and risky permission, which is not really required by the proxy, and some Admins won't even permit.
This change recommends using the much more restricted "openid", and also warns about the consent that could still be required in certain cases.
* docs/conf/overview: Add hint about cookie prefixes to --cookie-name
Cookie Prefixes further restricts the possibilities of session attacks because supporting clients will only accept cookies with one of the prefix if certain requirements were meet, see https://developer.mozilla.org/en-US/docs/Web/HTTP/Cookies#cookie_prefixes
* Backport cookie prefixes to older docs
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* adding IdleTimeout with the redis-connection-idle-timeout flag, to keep redis connections in valid state, when Redis option is set
* docs update - add redis idle timeout configurations
* changelog update for #1691 fix
The correct URL for the oidc-issuer-url in KeyCloak v18.0 is: https://<keycloak host>/realms/<your realm>.
Using the old URL causes oauth2-proxy to crash on startup.
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* Add redirect instructions for gitlab on sub-dir
* include redirect instructions in unversioned docs
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* Add allowed_emails option to the auth endpoint query string
* Don't return true from checkAllowedEmailsOrDomains only because domains field was empty
* Fix checkAllowedEmailsOrDomains logic
* Added tests for allowed_emails query parameter
* Updated CHANGELOG
* Remove checkAllowedEmailsOrDomains
Co-authored-by: Nick Meves <nicholas.meves@gmail.com>
* Add the allowed_email_domains and the allowed_groups on the auth_request endpoint + support standard wildcard char for validation with sub-domain and email-domain.
Signed-off-by: Valentin Pichard <github@w3st.fr>
* Fix provider data initialisation
* PKCE Support
Adds Code Challenge PKCE support (RFC-7636) and partial
Authorization Server Metadata (RFC-8414) for detecting PKCE support.
- Introduces new option `--force-code-challenge-method` to force a
specific code challenge method (either `S256` or `plain`) for instances
when the server has not implemented RFC-8414 in order to detect
PKCE support on the discovery document.
- In all other cases, if the PKCE support can be determined during discovery
then the `code_challenge_methods_supported` is used and S256 is always
preferred.
- The force command line argument is helpful with some providers like Azure
who supports PKCE but does not list it in their discovery document yet.
- Initial thought was given to just always attempt PKCE since according to spec
additional URL parameters should be dropped by servers which implemented
OAuth 2, however other projects found cases in the wild where this causes 500
errors by buggy implementations.
See: https://github.com/spring-projects/spring-security/pull/7804#issuecomment-578323810
- Due to the fact that the `code_verifier` must be saved between the redirect and
callback, sessions are now created when the redirect takes place with `Authenticated: false`.
The session will be recreated and marked as `Authenticated` on callback.
- Individual provider implementations can choose to include or ignore code_challenge
and code_verifier function parameters passed to them
Note: Technically speaking `plain` is not required to be implemented since
oauth2-proxy will always be able to handle S256 and servers MUST implement
S256 support.
> If the client is capable of using "S256", it MUST use "S256", as "S256"
> is Mandatory To Implement (MTI) on the server. Clients are permitted
> to use "plain" only if they cannot support "S256" for some technical
> reason and know via out-of-band configuration that the server supports
> "plain".
Ref: RFC-7636 Sec 4.2
oauth2-proxy will always use S256 unless the user explicitly forces `plain`.
Fixes#1361
* Address PR comments by moving pkce generation
* Make PKCE opt-in, move to using the Nonce generater for code verifier
* Make PKCE opt-in, move to using the Nonce generater for code verifier
* Encrypt CodeVerifier in CSRF Token instead of Session
- Update Dex for PKCE support
- Expose HTTPBin for further use cases
* Correct the tests
* Move code challenges into extra params
* Correct typo in code challenge method
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* Correct the extra space in docs
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
* Address changelog and new line nits
* Add generated docs
Co-authored-by: Valentin Pichard <github@w3st.fr>
Co-authored-by: Joel Speed <joel.speed@hotmail.co.uk>
Filtering `/dev/urandom` for alphanumeric characters resulted in loss of
input entropy to base64. Fixing this using a procedure with these steps:
* Read 32 bytes from `/dev/urandom` (`dd`)
* Base64-encode (`base64`)
* Strip newlines (`tr -d`)
* URL-Escape (`tr`)
* Append a final newline (`echo`)
This output should be equivalent to output generated using Python and
OpenSSL variants mentioned in the changed document file.
Newlines are stripped as `base64` wraps its output and the option to
disable this (`-w 0`) is not available in all implementations.
Fixes: #1511
You must explicitly configure oauth2-proxy (alpha config only) with which parameters are allowed to pass through, and optionally provide an allow-list of valid values and/or regular expressions for each one. Note that this mechanism subsumes the functionality of the "prompt", "approval_prompt" and "acr_values" legacy configuration options, which must be converted to the equivalent YAML when running in alpha config mode.
* implementation draft
* add cfg options skip-au-when-missing && client-id-verification-claim; enhance the provider data verification logic for sake of the added options
* refactor configs, added logging and add additional claim verification
* simplify logic by just having one configuration similar to oidc-email-claim
* added internal oidc token verifier, so that aud check behavior can be managed with oauth2-proxy and is compatible with extra-jwt-issuers
* refactored verification to reduce complexity
* refactored verification to reduce complexity
* added docs
* adjust tests to support new OIDCAudienceClaim and OIDCExtraAudiences options
* extend unit tests and ensure that audience is set with the value of aud claim configuration
* revert filemodes and update docs
* update docs
* remove unneccesary logging, refactor audience existence check and added additional unit tests
* fix linting issues after rebase on origin/main
* cleanup: use new imports for migrated libraries after rebase on origin/main
* adapt mock in keycloak_oidc_test.go
* allow specifying multiple audience claims, fixed bug where jwt issuers client id was not the being considered and fixed bug where aud claims with multiple audiences has broken the whole validation
* fixed formatting issue
* do not pass the whole options struct to minimize complexity and dependency to the configuration structure
* added changelog entry
* update docs
Co-authored-by: Sofia Weiler <sofia.weiler@aoe.com>
Co-authored-by: Christian Zenker <christian.zenker@aoe.com>
* Remove the information about `Microsoft Azure AD`
* Put `proxy_buffer_size` in a code tag
* Update `CHANGELOG.md`
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
I was recently looking into the order in which oauth2-proxy evaluates it configuration options from the various sources.
I think this will also be helpful for other users.
Since oauth2-proxy is using viper, the order of configuration sources is as follows [1]:
> Viper uses the following precedence order. Each item takes precedence over the item below it:
>
> explicit call to Set
> flag
> env
> config
> key/value store
> default
[1] https://github.com/spf13/viper/blob/master/README.md#why-viper
Co-authored-by: Joel Speed <Joel.speed@hotmail.co.uk>
The previous code didn't consider other languages and hid the output of failures. For example
```
$ LANG=es_ES.UTF-8 sha256sum -c sha256sum.txt
oauth2-proxy-v7.1.3.linux-amd64/oauth2-proxy: La suma coincide
```
