Security Advisories (1)
Plack::Middleware::OAuth versions through 0.10 for Perl do not support the OAuth 2.0 state parameter. RequestTokenV2 builds the provider authorization redirect without issuing a state value, and AccessTokenV2 exchanges the callback code and registers the resulting token into the session (register_session) without verifying that the callback corresponds to an authorization request this session initiated. Any application that uses this middleware for OAuth 2.0 login is exposed to login cross-site request forgery: because the callback is not bound to the session that began the flow, an attacker who starts an authorization with their own provider account can deliver the resulting callback to a victim, causing the victim's session to complete the attacker's authorization and associating the attacker's provider identity and access token with that session. Where the application persists this as an account link, the attacker may retain access to the victim's account through their own provider credentials.
NAME
Plack::Middleware::OAuth::Handler - OAuth Handler
ACCESSORS
provider
Provider id.
config
Provider configuration hash reference.
on_success
On success handler.
on_error
On error handler.
METHODS
default_callback
return default callback URL.
Module Install Instructions
To install Plack::Middleware::OAuth, copy and paste the appropriate command in to your terminal.
cpanm Plack::Middleware::OAuthperl -MCPAN -e shell
install Plack::Middleware::OAuthFor more information on module installation, please visit the detailed CPAN module installation guide.