[OAUTH-WG] Android App Links (AKA Universal Links)

Dick Hardt <dick.hardt@gmail.com> Mon, 19 October 2020 23:10 UTC

Return-Path: <dick.hardt@gmail.com>
X-Original-To: oauth@ietfa.amsl.com
Delivered-To: oauth@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 736883A1124 for <oauth@ietfa.amsl.com>; Mon, 19 Oct 2020 16:10:24 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: 1.443
X-Spam-Level: *
X-Spam-Status: No, score=1.443 tagged_above=-999 required=5 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, HTML_FONT_LOW_CONTRAST=0.001, HTML_IMAGE_ONLY_12=1.629, HTML_MESSAGE=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_REMOTE_IMAGE=0.01, URIBL_BLOCKED=0.001] autolearn=no autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id BpAsA5mjZUKF for <oauth@ietfa.amsl.com>; Mon, 19 Oct 2020 16:10:23 -0700 (PDT)
Received: from mail-lf1-x12f.google.com (mail-lf1-x12f.google.com [IPv6:2a00:1450:4864:20::12f]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 2968C3A1121 for <oauth@ietf.org>; Mon, 19 Oct 2020 16:10:23 -0700 (PDT)
Received: by mail-lf1-x12f.google.com with SMTP id r127so2024105lff.12 for <oauth@ietf.org>; Mon, 19 Oct 2020 16:10:23 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:from:date:message-id:subject:to:cc; bh=xMKLwARkbkOHsRFP4y9Pf/HhfyGLS0evsoYUM/E/pOw=; b=tx23gfSMr86iT30MN+CQxg7iC3NGl81SIOHdXKKR43tWPdPJ6DpLUXWDdeqd4xZz5v lMXK9yj1p0wl/0lyK9LwwncDwrTDn6MejMZQDYjbJGVVgqSQS5sqLLccYtij6Kq12st+ KTRqXGwT1EnyIm/0pQHFDBCYoQ9/R4VCGDQXzG73B5DPVrz+xQvhbA0LZcELGI+lYPlC +j0BJ6qOD/wvEHEw/A1qt3Zd1C11ArxvttlLGZJKO1fHnkjJq84CfXDoNTJp8t1ul+4S s4oESLxCGT4LxpkxwD9td938faGL54f9SKLNZzOyIOf64VN9agDNOvXX2MpvD1fjTmNF Fc0A==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc; bh=xMKLwARkbkOHsRFP4y9Pf/HhfyGLS0evsoYUM/E/pOw=; b=Ff66dXAx6M9UPdiULNiSYT/atPwhBUERmHANWtaOAIlT7+ckmSWerIq+tze/BtI5il Q1HeefRyWgnFXCNTlQe0RK4qDTDEpuij0o+d86VdZQrlLF8DjMlsNWdw1sA76t9FxwUV NZ6TFRIUmi0kH5gJxloEOYVb/7Lz2cayoacPW537N7vMA8cnQytYKnD8nEbjbvdjNMBn rhH+zccjU3gF2+RB+6P6wF5dEkN0vkd85E4Zt2xU6EPXqUcEeklcWjVh3/ubplzdA7MK gGnFS6+4ZuwLq7FVq4XXqchqneysoZLvzGRg/qgD/er1xsCoawgFbvUody9eJtEE911a 2tVw==
X-Gm-Message-State: AOAM5337xajR9UkDmLCaJAk/Rqxy4W1s3oqS/tIK3FLxclmT5N7uUg6m wzB35EYX7HZN0kdBoXrkznPYHPyOjr51nByl8do=
X-Google-Smtp-Source: ABdhPJx21+Z9CC2yculuoLji0OjHybaTTbMGUDgOCZ7uU+M8/IYFZqlExFNVzUgCKU7cX0Vnholc0nVRNd6ONvsNr/k=
X-Received: by 2002:a19:c70f:: with SMTP id x15mr616689lff.296.1603149021161; Mon, 19 Oct 2020 16:10:21 -0700 (PDT)
MIME-Version: 1.0
From: Dick Hardt <dick.hardt@gmail.com>
Date: Mon, 19 Oct 2020 16:09:45 -0700
Message-ID: <CAD9ie-tixMTAbPOtzPUjZdM7oa6_Rw2Gfbup2NQHUHJMu9LBTg@mail.gmail.com>
To: Vittorio Bertocci <vittorio.bertocci@auth0.com>
Cc: oauth@ietf.org
Content-Type: multipart/alternative; boundary="000000000000edcd3705b20e375f"
Archived-At: <https://mailarchive.ietf.org/arch/msg/oauth/jixx8lniEuYmHjRHi2Q7XZGVVIs>
Subject: [OAUTH-WG] Android App Links (AKA Universal Links)
X-BeenThere: oauth@ietf.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: OAUTH WG <oauth.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/oauth>, <mailto:oauth-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/oauth/>
List-Post: <mailto:oauth@ietf.org>
List-Help: <mailto:oauth-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/oauth>, <mailto:oauth-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 19 Oct 2020 23:10:24 -0000

Hey Vittorio

(cc'ing OAuth list as this was brought up in the office hours today)

https://developer.android.com/training/app-links

An app is the default handler and the developer has verified ownership of
the HTTPS URL. While a user can override the app being the default handler
in the system settings -- I don't see how a malicious app can be the
default setting.

What am I missing?

/Dick
ᐧ