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Low 25 Monero

trezor-monero-passphrase-modal (#3337)

Public commit record

What the developer wrote

Authored by Konstantin Ullrich

76/100 · Adequate
trezor-monero-passphrase-modal (#3337)

* trezor monero passphrase modal

* feat: add Trezor passphrase support for wallet restoration process

* revert: send page changes

* chore: format code

* chore: format code

* chore: reorganize imports and improve code formatting in send_page.dart [skip ci]

* auto-reformat

* fix: trezor usb device refresh race condition

* fix: ui bugs in relation to trezor

* fix: only show passphrase option for trezor devices

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Co-authored-by: Robert Malikowski <malikowskirobert@gmail.com>
Co-authored-by: Omar Hatem <omarh.ismail1@gmail.com>
✓ Descriptive subject✓ Names a concrete action or component✓ Provides detailed explanatory context✓ Links an issue, advisory, or supporting reference
The short version

What changed, and why it matters

This commit adds support for using a passphrase with Trezor hardware wallets when restoring a Monero wallet in Cake Wallet. It also fixes a small race condition when refreshing the list of connected USB devices. There is no clear security vulnerability in the diff itself; it is a feature addition with some minor hardening.

Recommended action

Review how the passphrase is persisted: storing a hardware-wallet passphrase in the wallet cache may reduce security if the cache is not encrypted with the same protections as the seed. Verify the new trezor-flutter git ref for any relevant security fixes. No immediate patch is required, but a security review of the passphrase storage model is advisable.

Security signals we found

01

Passphrase stored in wallet cache attribute 'cakewallet.passphrase' via setCacheAttribute/store

02

New Trezor passphrase session created via service.client.createChannel(passphrase: ...)

03

USB refresh race condition mitigated with an _isRefreshingUsb guard and try/catch

04

Dependency update for trezor-flutter and trezor_usb_transport to a new git ref

Risk score

Why this scored 25/100

Our methodology →
Potential impact 5/30
Exploitability 4/25
Stealth signal 3/15
Affected reach 4/15
Confidence 6/10
Evidence quality 3/5
Human-validated context

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