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UMA 2.0 diagrams

Published:

Some diagrams (mostly sequence diagrams) about UMA 2.0.

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Arbitrary code execution through kitty-open.desktop file association

にゃあにゃあ

Published:

In Debian kitty package, the kitty-open.desktop file would associate kitty +open with several MIME types. This could be used to arbitrary trigger code execution by serving a file with such a MIME type.

This has been introduced in kitty in 73a197fcd (2022-02-06) released as part of v0.24.3. This has been fixed in v0.26.5-5 of the Debian kitty package. Fixed upstream in 537cabca7 released in v0.29.0. Other distributions such as Ubuntu Lunar are still impacted.

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Shell command and Emacs Lisp injection in emacsclient-mail.desktop

Published:

Shell command injection and Emacs Lisp injection vulnerabilities in one of the Emacs Desktop Entry (emacsclient-mail.desktop) leading to arbitrary code execution through a crafted mailto: URI.

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Arbitrary file write in Stellarium file association

Published:

I found an arbitrary file write vulnerability (through path traversal) which would be exploited for arbitrary code execution in Stellarium (desktop version).

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MIME-type spoofing in Firefox/Thunderbird and file managers

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An interesting spoofing attack resulting from the interaction between Firefox (or Thunderbird) MIME types handling and file managers.

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Code execution through MIME-type association of Mono interpreter

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A dangerous file type association in Debian which could be used to trigger arbitrary code execution.

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OAuth 2.x and OpenID Connect sequence diagrams

Published:

Some sequence diagrams about OAuth 2.x and OpenID Connect.

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Entering in Podman containers

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Some commands for interacting with the namespaces of Podman containers.

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Impact of the different Wifi security modes

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Comparing the different Wifi/WPA authentication and key distribution methods (PSK, EAP, SEA).

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Browser-based attacks on WebDriver implementations

Published:

Some context and analysis about attacks on in WebDriver implementations.

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