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CVE-2019-3827

Published: 11 February 2019

An incorrect permission check in the admin backend in gvfs before version 1.39.4 was found that allows reading and modify arbitrary files by privileged users without asking for password when no authentication agent is running. This vulnerability can be exploited by malicious programs running under privileges of users belonging to the wheel group to further escalate its privileges by modifying system files without user's knowledge. Successful exploitation requires uncommon system configuration.

Notes

AuthorNote
debian
Affecting vgfs since 1.29.4 where admin backend was introduced.

Priority

Medium

Cvss 3 Severity Score

7.0

Score breakdown

Status

Package Release Status
gvfs
Launchpad, Ubuntu, Debian
upstream
Released (1.38.1-3)
trusty Does not exist
(trusty was not-affected [code not present])
xenial Not vulnerable
(code not present)
bionic
Released (1.36.1-0ubuntu1.3)
cosmic
Released (1.38.1-0ubuntu1.2)

Severity score breakdown

Parameter Value
Base score 7.0
Attack vector Local
Attack complexity High
Privileges required Low
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H