Bug 2291439

Summary:	CVE-2024-37408 fprintd: unexpected actions might be authorized with fingerprint reader [fedora-all]
Product:	[Fedora] Fedora	Reporter:	Rohit Keshri <rkeshri>
Component:	fprintd	Assignee:	Benjamin Berg <benjamin-fedora>
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	40	CC:	benjamin-fedora, hpa
Target Milestone:	---	Keywords:	Security, SecurityTracking
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2024-06-12 13:01:54 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	2291438

Description Rohit Keshri 2024-06-12 06:14:41 UTC

More information about this security flaw is available in the following bug:

http://bugzilla.redhat.com/show_bug.cgi?id=2291438

Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Rohit Keshri 2024-06-12 06:14:44 UTC

Use the following template to for the 'fedpkg update' request to submit an
update for this issue as it contains the top-level parent bug(s) as well as
this tracking bug.  This will ensure that all associated bugs get updated
when new packages are pushed to stable.

=====

# bugfix, security, enhancement, newpackage (required)
type=security

# low, medium, high, urgent (required)
severity=medium

# testing, stable
request=testing

# Bug numbers: 1234,9876
bugs=2291438,2291439

# Description of your update
notes=Security fix for [PUT CVEs HERE]

# Enable request automation based on the stable/unstable karma thresholds
autokarma=True
stable_karma=3
unstable_karma=-3

# Automatically close bugs when this marked as stable
close_bugs=True

# Suggest that users restart after update
suggest_reboot=False

======

Additionally, you may opt to use the bodhi web interface to submit updates:

https://bodhi.fedoraproject.org/updates/new

Comment 2 Benjamin Berg 2024-06-12 13:01:54 UTC

1. fprintd is just an API provider. It is neither able nor responsible to ensure attention from the user.
2. The scoring is bogus:
   - this requires the user to touch the reader
   - it requires showing an (invalid) excuse to the user for the necessity of doing so
   - it requires starting another hidden authentication operation before doing the above

All combined, it is really not easy to "exploit" if you even want to call it that. Because touching the reader means doing an authentication, and the user should be aware of the operation they started in the first place.

I am closing this as not a bug and does not even deserve a CVE in my view. If anything, it is a configuration issue because doing authentication in a terminal can be invisible to the user. You can pick that battle with authselect if you want to.