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OVAL Definitions
>
OVAL Definition Details
Id
oval:com.altx-soft.nix:def:18108
[Rus]
Version
5
Class
patch
ALTXid
172703
Language
English
Severity
Medium
Title
RHSA-2018:0223 -- nautilus security update
Description
An untrusted .desktop file with executable permission set could choose its displayed name and icon, and execute commands without warning when opened by the user. An attacker could use this flaw to trick a user into opening a .desktop file disguised as a document, such as a PDF, and execute arbitrary commands. (CVE-2017-14604)
Family
unix
Platform
CentOS Linux 7
Red Hat Enterprise Linux 7
Product
nautilus
Reference
VENDOR: RHSA-2018:0223
VENDOR: RHSA-2018:0223
Id:
RHSA-2018:0223
Reference:
https://access.redhat.com/errata/RHSA-2018:0223
CESA-2018:0223: CESA-2018:0223
CESA-2018:0223: CESA-2018:0223
Id:
CESA-2018:0223
Reference:
http://lists.centos.org/pipermail/centos-announce/2018-January/022734.html
CVE: CVE-2017-14604
CVE: CVE-2017-14604
Id:
CVE-2017-14604
Reference:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-14604
Comment
: 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.
CVSSv2 Score:
4
Access vector:
NETWORK
Access complexity:
LOW
Authentication:
SINGLE
Confidentiality impact:
NONE
Integrity impact:
PARTIAL
Availability impact:
NONE
CVSSv2 Vector:
AV:N/AC:L/Au:S/C:N/I:P/A:N
CVSSv3 Score:
6.5
Attack vector:
NETWORK
Attack complexity:
LOW
Privileges required:
LOW
User interaction:
NONE
Scope:
UNCHANGED
Confidentiality impact:
NONE
Integrity impact:
HIGH
Availability impact:
NONE
CVSSv3 Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE:
20 (Improper Input Validation)
References:
https://micahflee.com/2017/04/breaking-the-security-model-of-subgraph-os/ (MISC)
https://github.com/GNOME/nautilus/commit/bc919205bf774f6af3fa7154506c46039af5a69b (MISC)
https://github.com/GNOME/nautilus/commit/1630f53481f445ada0a455e9979236d31a8d3bb0 (MISC)
https://github.com/freedomofpress/securedrop/issues/2238 (MISC)
https://bugzilla.gnome.org/show_bug.cgi?id=777991 (MISC)
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860268 (MISC)
101012 (BID)
DSA-3994 (DEBIAN)
RHSA-2018:0223 (REDHAT)
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