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Insecure instructions for verifying devices #10008

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madduck opened this issue Jun 11, 2019 · 2 comments
Closed

Insecure instructions for verifying devices #10008

madduck opened this issue Jun 11, 2019 · 2 comments
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A-E2EE-SAS-Verification T-Enhancement

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@madduck
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madduck commented Jun 11, 2019

When being asked to verify a device, the instructions say:

To verify that this device can be trusted, please contact its owner using some other means (e.g. in person or a phone call) and ask them whether the key they see in their User Settings for this device matches the key below: […]

IMHO, this is wrong. The owner should read out the fingerprint, and it should be up to the local user to verify the match. Otherwise, a malicious actor could simply ack the fingerprint as read out by the owner, and get them to trust a malicious device that somehow managed to fake the fingerprint.

I am not sure this is really an attack vector, but it seems wrong to ask someone else to make comparison calls that are critical to one's own trust definitions.
@jryans
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jryans commented Jun 11, 2019

Thanks for the feedback! I believe most of this UX will change significantly when cross-signing is used instead of verifying individual devices, but it's still good to track.

@aaronraimist
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This has been fixed

su-ex added a commit to SchildiChat/element-web that referenced this issue Feb 28, 2023
@su-ex
Merge tag 'v1.11.23' into sc
2f22522 
* Description of QR code sign in labs feature ([\element-hq#23513](element-hq#23513)). Contributed by @hughns.
* Add option to find own location in map views ([\element-hq#10083](matrix-org/matrix-react-sdk#10083)).
* Render poll end events in timeline ([\element-hq#10027](matrix-org/matrix-react-sdk#10027)). Contributed by @kerryarchibald.
* Indicate unread messages in tab title ([\element-hq#10096](matrix-org/matrix-react-sdk#10096)). Contributed by @tnt7864.
* Open message in editing mode when keyboard up is pressed (RTE) ([\element-hq#10079](matrix-org/matrix-react-sdk#10079)). Contributed by @florianduros.
* Hide superseded rooms from the room list using dynamic room predecessors ([\element-hq#10068](matrix-org/matrix-react-sdk#10068)). Contributed by @andybalaam.
* Support MSC3946 in RoomListStore ([\element-hq#10054](matrix-org/matrix-react-sdk#10054)). Fixes element-hq#24325. Contributed by @andybalaam.
* Auto focus security key field ([\element-hq#10048](matrix-org/matrix-react-sdk#10048)).
* use Poll model with relations API in poll rendering ([\element-hq#9877](matrix-org/matrix-react-sdk#9877)). Contributed by @kerryarchibald.
* Support MSC3946 in the RoomCreate tile ([\element-hq#10041](matrix-org/matrix-react-sdk#10041)). Fixes element-hq#24323. Contributed by @andybalaam.
* Update labs flag description for RTE ([\#10058](matrix-org/matrix-react-sdk#10058)). Contributed by @florianduros.
* Change ul list style to disc when editing message ([\element-hq#10043](matrix-org/matrix-react-sdk#10043)). Contributed by @alunturner.
* Improved click detection within PiP windows ([\element-hq#10040](matrix-org/matrix-react-sdk#10040)). Fixes element-hq#24371.
* Add RTE keyboard navigation in editing ([\element-hq#9980](matrix-org/matrix-react-sdk#9980)). Fixes element-hq#23621. Contributed by @florianduros.
* Paragraph integration for rich text editor ([\element-hq#10008](matrix-org/matrix-react-sdk#10008)). Contributed by @alunturner.
* Add  indentation increasing/decreasing to RTE ([\element-hq#10034](matrix-org/matrix-react-sdk#10034)). Contributed by @florianduros.
* Add ignore user confirmation dialog ([\element-hq#6116](matrix-org/matrix-react-sdk#6116)). Fixes element-hq#14746.
* Use monospace font for room, message IDs in View Source modal ([\element-hq#9956](matrix-org/matrix-react-sdk#9956)). Fixes element-hq#21937. Contributed by @paragpoddar.
* Implement MSC3946 for AdvancedRoomSettingsTab ([\#9995](matrix-org/matrix-react-sdk#9995)). Fixes element-hq#24322. Contributed by @andybalaam.
* Implementation of MSC3824 to make the client OIDC-aware ([\element-hq#8681](matrix-org/matrix-react-sdk#8681)). Contributed by @hughns.
* Improves a11y for avatar uploads ([\element-hq#9985](matrix-org/matrix-react-sdk#9985)). Contributed by @GoodGuyMarco.
* Add support for [token authenticated registration](https ([\element-hq#7275](matrix-org/matrix-react-sdk#7275)). Fixes element-hq#18931. Contributed by @govynnus.
* Jitsi requests 'requires_client' capability if auth token is provided ([\element-hq#24294](element-hq#24294)). Contributed by @maheichyk.
* Remove duplicate white space characters from translation keys ([\element-hq#10152](matrix-org/matrix-react-sdk#10152)). Contributed by @luixxiul.
* Fix the caption of new sessions manager on Labs settings page for localization ([\element-hq#10143](matrix-org/matrix-react-sdk#10143)). Contributed by @luixxiul.
* Prevent start another DM with a user if one already exists ([\element-hq#10127](matrix-org/matrix-react-sdk#10127)). Fixes element-hq#23138.
* Remove white space characters before the horizontal ellipsis ([\element-hq#10130](matrix-org/matrix-react-sdk#10130)). Contributed by @luixxiul.
* Fix Selectable Text on 'Delete All' and 'Retry All' Buttons ([\element-hq#10128](matrix-org/matrix-react-sdk#10128)). Fixes element-hq#23232. Contributed by @akshattchhabra.
* Correctly Identify emoticons ([\element-hq#10108](matrix-org/matrix-react-sdk#10108)). Fixes element-hq#19472. Contributed by @adarsh-sgh.
* Should open new 1:1 chat room after leaving the old one ([\element-hq#9880](matrix-org/matrix-react-sdk#9880)). Contributed by @ahmadkadri.
* Remove a redundant white space ([\element-hq#10129](matrix-org/matrix-react-sdk#10129)). Contributed by @luixxiul.
* Fix a crash when removing persistent widgets (updated) ([\element-hq#10099](matrix-org/matrix-react-sdk#10099)). Fixes element-hq#24412. Contributed by @andybalaam.
* Fix wrongly grouping 3pid invites into a single repeated transition ([\element-hq#10087](matrix-org/matrix-react-sdk#10087)). Fixes element-hq#24432.
* Fix scrollbar colliding with checkbox in add to space section ([\element-hq#10093](matrix-org/matrix-react-sdk#10093)). Fixes element-hq#23189. Contributed by @Arnabdaz.
* Add a whitespace character after 'broadcast?' ([\element-hq#10097](matrix-org/matrix-react-sdk#10097)). Contributed by @luixxiul.
* Seekbar in broadcast PiP view is now updated when switching between different broadcasts ([\element-hq#10072](matrix-org/matrix-react-sdk#10072)). Fixes element-hq#24415.
* Add border to "reject" button on room preview card for clickable area indication. It fixes element-hq#22623 ([\element-hq#9205](matrix-org/matrix-react-sdk#9205)). Contributed by @gefgu.
* Element-R: fix rageshages ([\element-hq#10081](matrix-org/matrix-react-sdk#10081)). Fixes element-hq#24430.
* Fix markdown paragraph display in timeline ([\element-hq#10071](matrix-org/matrix-react-sdk#10071)). Fixes element-hq#24419. Contributed by @alunturner.
* Prevent the remaining broadcast time from being exceeded ([\element-hq#10070](matrix-org/matrix-react-sdk#10070)).
* Fix cursor position when new line is created by pressing enter (RTE) ([\element-hq#10064](matrix-org/matrix-react-sdk#10064)). Contributed by @florianduros.
* Ensure room is actually in space hierarchy when resolving its latest version ([\element-hq#10010](matrix-org/matrix-react-sdk#10010)).
* Fix new line for inline code ([\element-hq#10062](matrix-org/matrix-react-sdk#10062)). Contributed by @florianduros.
* Member avatars without canvas ([\element-hq#9990](matrix-org/matrix-react-sdk#9990)). Contributed by @clarkf.
* Apply more general fix for base avatar regressions ([\element-hq#10045](matrix-org/matrix-react-sdk#10045)). Fixes element-hq#24382 and element-hq#24370.
* Replace list, code block and quote icons by new icons ([\element-hq#10035](matrix-org/matrix-react-sdk#10035)). Contributed by @florianduros.
* fix regional emojis converted to flags ([\element-hq#9294](matrix-org/matrix-react-sdk#9294)). Fixes element-hq#19000. Contributed by @grimhilt.
* resolved emoji description text overflowing issue ([\element-hq#10028](matrix-org/matrix-react-sdk#10028)). Contributed by @fahadNoufal.
* Fix MessageEditHistoryDialog crashing on complex input ([\element-hq#10018](matrix-org/matrix-react-sdk#10018)). Fixes element-hq#23665. Contributed by @clarkf.
* Unify unread notification state determination ([\element-hq#9941](matrix-org/matrix-react-sdk#9941)). Contributed by @clarkf.
* Fix layout and visual regressions around default avatars ([\element-hq#10031](matrix-org/matrix-react-sdk#10031)). Fixes element-hq#24375 and element-hq#24369.
* Fix useUnreadNotifications exploding with falsey room, like in notif panel ([\element-hq#10030](matrix-org/matrix-react-sdk#10030)). Fixes matrix-org/element-web-rageshakes#19334.
* Fix "[object Promise]" appearing in HTML exports ([\element-hq#9975](matrix-org/matrix-react-sdk#9975)). Fixes element-hq#24272. Contributed by @clarkf.
* changing the color of message time stamp ([\element-hq#10016](matrix-org/matrix-react-sdk#10016)). Contributed by @nawarajshah.
* Fix link creation with backward selection ([\element-hq#9986](matrix-org/matrix-react-sdk#9986)). Fixes element-hq#24315. Contributed by @florianduros.
* Misaligned reply preview in thread composer element-hq#23396 ([\element-hq#9977](matrix-org/matrix-react-sdk#9977)). Fixes element-hq#23396. Contributed by @mustafa-kapadia1483.
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@madduck @jryans @aaronraimist