This bug was fixed in the package fprintd - 1.90.7-1
---------------
fprintd (1.90.7-1) unstable; urgency=medium
* New upstream release
- Fix fprintd DBus configuration (Closes: #976990)
- Change details of what requires authorization
- Fix various race conditions in pam_fprintd
- Permit interactive authorization from fprintd utilities
- Do not allow deletion while another operation is ongoing
- pam: Guard strdup calls against NULL pointers
* debian/patches:
- Refresh
- Ignore NameOwnerChanged until fprintd is running
-- Marco Trevisan (Treviño) <[email protected]> Fri, 11 Dec 2020
00:03:27 +0100
** Changed in: fprintd (Ubuntu)
Status: In Progress => Fix Released
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https://bugs.launchpad.net/bugs/1532264
Title:
fprintd allows unauthorized root access
Status in fprintd:
Invalid
Status in fprintd package in Ubuntu:
Fix Released
Bug description:
For some reason, fprintd-enroll does not require any special authorization to
run.
This means that anyone coming across or stealing a machine with it
installed and which is currently logged in and for which fingerprints
are enabled for sudo authentication can elevate their access to
superuser by simply running fprintd-enroll and scanning their own
fingers. A subsequent sudo command will then give the new user
access.
Even if sudo access is not granted through fingerprints, a thief could
get continued access to someone's account (for subsequent logging in)
if they can enroll new fingerprints without re-authenticating as the
original user.
This seems a security threat.
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: fprintd 0.6.0-1
ProcVersionSignature: Ubuntu 4.2.0-23.28-generic 4.2.6
Uname: Linux 4.2.0-23-generic x86_64
ApportVersion: 2.19.1-0ubuntu5
Architecture: amd64
CurrentDesktop: Unity
Date: Fri Jan 8 11:35:02 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-12-18 (21 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: fprintd
UpgradeStatus: No upgrade log present (probably fresh install)
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