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CVE-2017-14604

6.5 · MEDIUM

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 fi…

Published Sep 20, 2017CWE-20EPSS 2.47%

Overview

CVE-2017-14604 is a medium-severity vulnerability. It was published on September 20, 2017 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refwww.debian.org/security/2017/dsa-3994Refwww.securityfocus.com/bid/101012Refaccess.redhat.com/errata/RHSA-2018:0223Refbugs.debian.org/cgi-bin/bugreport.cgi?bug=860268Refbugzilla.gnome.org/show_bug.cgi?id=777991GitHubgithub.com/GNOME/nautilus/commit/1630f53481f445ada0a455e9979236d31a8d3bb0GitHubgithub.com/GNOME/nautilus/commit/bc919205bf774f6af3fa7154506c46039af5a69bGitHubgithub.com/freedomofpress/securedrop/issues/2238Refmicahflee.com/2017/04/breaking-the-security-model-of-subgraph-os/Refwww.debian.org/security/2017/dsa-3994

How CyberStrike helps

Frequently asked questions

What is CVE-2017-14604?

CVE-2017-14604 is a medium-severity vulnerability. It was published on September 20, 2017 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2017-14604?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2017-14604?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2017-14604?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-14604 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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