Keycloak UMA vulnerabilities
Published:
Keycloak UMA's implementation seems tricky to me.
Malicious authorization server attack in UMA 2.0
Published:
In a previous post, I described a pass-the-permission-ticket vulnerability in UMA 2.0 in which a malicious UMA resource server could kindly ask a UMA client to give it access tokens actually intended for another UMA resource server. In this post, I am describing a similar attack when the authorization server is malicious.
Pass-the-permission-ticket vulnerability in UMA 2.0
Published:
In the User-Managed Access (UMA) 2.0 protocol, a malicious resource server (or a malicious server acting as a resource server) can obtain a requesting party (access) token (RPT) intended for another UMA resource server from a UMA client by passing a permission ticket obtained from the target resource server to the UMA client. This can compromise the privacy (confidentiality) and integrity of UMA protected resources.
WebSub sequence diagram
Published:
A sequence diagram for WebSub.
The FBI recommends using ad blockers
Published:
An interesting note from the FBI.
UMA 2.0 diagrams
Published:
Some diagrams (mostly sequence diagrams) about UMA 2.0.
MIME-type spoofing in Firefox/Thunderbird and file managers
Published:
An interesting spoofing attack resulting from the interaction between Firefox (or Thunderbird) MIME types handling and file managers.
Code execution through MIME-type association of Mono interpreter
Published:
A dangerous file type association in Debian which could be used to trigger arbitrary code execution.
OAuth 2.x and OpenID Connect sequence diagrams
Published:
Some sequence diagrams about OAuth 2.x and OpenID Connect.
Browser-based attacks on WebDriver implementations
Published:
Some context and analysis about attacks on in WebDriver implementations.
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