Candidate: CVE-2017-14604 PublicDate: 2017-09-20 08:29:00 UTC References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14604 https://micahflee.com/2017/04/breaking-the-security-model-of-subgraph-os/ Description: GNOME Nautilus before 3.23.90 allows attackers to spoof a file type by using the .desktop file extension, as demonstrated by an attack in which a .desktop file's Name field ends in .pdf but this file's Exec field launches a malicious "sh -c" command. In other words, Nautilus provides no UI indication that a file actually has the potentially unsafe .desktop extension; instead, the UI only shows the .pdf extension. One (slightly) mitigating factor is that an attack requires the .desktop file to have execute permission. The solution is to ask the user to confirm that the file is supposed to be treated as a .desktop file, and then remember the user's answer in the metadata::trusted field. Ubuntu-Description: Notes: mdeslaur> fixing this in stable releases would result in the user getting mdeslaur> an unexpected "Untrusted application launcher" dialog on existing mdeslaur> .desktop files. Dialog changes would also need new translations. Bugs: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860268 https://bugzilla.gnome.org/show_bug.cgi?id=777991 https://bugzilla.redhat.com/show_bug.cgi?id=1490872 https://github.com/freedomofpress/securedrop/issues/2238 Priority: low Discovered-by: Assigned-to: CVSS: nvd: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N [6.5 MEDIUM] Patches_nautilus: upstream: https://github.com/GNOME/nautilus/commit/1630f53481f445ada0a455e9979236d31a8d3bb0 upstream_nautilus: released (3.23.90) precise/esm_nautilus: DNE trusty_nautilus: ignored (reached end-of-life) trusty/esm_nautilus: DNE (trusty was needed) vivid/ubuntu-core_nautilus: DNE xenial_nautilus: ignored (end of standard support, was needed) esm-infra/xenial_nautilus: needed zesty_nautilus: ignored (reached end-of-life) artful_nautilus: not-affected (1:3.26.0-0ubuntu1) bionic_nautilus: not-affected (1:3.26.0-0ubuntu1) cosmic_nautilus: not-affected (1:3.26.0-0ubuntu1) disco_nautilus: not-affected (1:3.26.0-0ubuntu1) eoan_nautilus: not-affected (1:3.26.0-0ubuntu1) focal_nautilus: not-affected (1:3.26.0-0ubuntu1) groovy_nautilus: not-affected (1:3.26.0-0ubuntu1) hirsute_nautilus: not-affected (1:3.26.0-0ubuntu1) impish_nautilus: not-affected (1:3.26.0-0ubuntu1) jammy_nautilus: not-affected (1:3.26.0-0ubuntu1) devel_nautilus: not-affected (1:3.26.0-0ubuntu1)