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CVE
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CVE-2017-14604Date: (C)2017-09-22   (M)2018-02-26


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 6.5CVSS Score : 4.0
Exploit Score: 2.8Exploit Score: 8.0
Impact Score: 3.6Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: LOWAuthentication: SINGLE_INSTANCE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: NONE
Integrity: HIGH 
Availability: NONE 
  
Reference:
BID-101012
DSA-3994
RHSA-2018:0223
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=860268
https://bugzilla.gnome.org/show_bug.cgi?id=777991
https://github.com/GNOME/nautilus/commit/1630f53481f445ada0a455e9979236d31a8d3bb0
https://github.com/GNOME/nautilus/commit/bc919205bf774f6af3fa7154506c46039af5a69b
https://github.com/freedomofpress/securedrop/issues/2238
https://micahflee.com/2017/04/breaking-the-security-model-of-subgraph-os/

CWE    1
CWE-20
OVAL    4
oval:org.secpod.oval:def:603125
oval:org.secpod.oval:def:502228
oval:org.secpod.oval:def:204746
oval:org.secpod.oval:def:1700006
...

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