// For flags

CVE-2018-5174

 

Severity Score

7.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SEE_MASK_FLAG_NO_UI" flag associated with downloaded files and will not show any UI. Files that are unknown and potentially dangerous will be allowed to run because SmartScreen will not prompt the user for a decision, and if the user is offline all files will be allowed to be opened because Windows won't prompt the user to ask what to do. Firefox incorrectly sets this flag when downloading files, leading to less secure behavior from SmartScreen. Note: this issue only affects Windows 10 users running the April 2018 update or later. It does not affect other Windows users or other operating systems. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

En la actualización de Windows 10 de abril de 2018, Windows Defender SmartScreen establece el flag "SEE_MASK_FLAG_NO_UI" asociado a los archivos descargados y no mostrará ninguna interfaz de usuario. Los archivos desconocidos y potencialmente peligrosos podrán ejecutarse porque SmartScreen no le pedirá al usuario que tome una decisión y, si el usuario está desconectado, todos los archivos podrán abrirse porque Windows no le preguntará al usuario qué hacer. Firefox establece incorrectamente este flag al descargar archivos, lo que provoca un comportamiento menos seguro desde SmartScreen. Nota: este problema sólo afecta a los usuarios de Windows 10 que ejecuten la actualización de abril de 2018 o posterior. No afecta a otros usuarios de Windows ni a otros sistemas operativos. Esta vulnerabilidad afecta a las versiones anteriores a la 52.8 de Thunderbird, las versiones anteriores a la 52.8 de Thunderbird ESR, las versiones anteriores a la 60 de Firefox y las versiones anteriores a la 52.8 de Firefox ESR.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2018-01-03 CVE Reserved
  • 2018-06-11 CVE Published
  • 2023-12-12 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Mozilla
Search vendor "Mozilla"
 Firefox
Search vendor "Mozilla" for product "Firefox"
 < 60.0
Search vendor "Mozilla" for product "Firefox" and version " < 60.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows 10
Search vendor "Microsoft" for product "Windows 10"
--
Safe
Mozilla
Search vendor "Mozilla"
 Firefox Esr
Search vendor "Mozilla" for product "Firefox Esr"
 < 52.8.0
Search vendor "Mozilla" for product "Firefox Esr" and version " < 52.8.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows 10
Search vendor "Microsoft" for product "Windows 10"
--
Safe
Mozilla
Search vendor "Mozilla"
 Thunderbird
Search vendor "Mozilla" for product "Thunderbird"
 < 52.8.0
Search vendor "Mozilla" for product "Thunderbird" and version " < 52.8.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows 10
Search vendor "Microsoft" for product "Windows 10"
--
Safe
Mozilla
Search vendor "Mozilla"
 Thunderbird Esr
Search vendor "Mozilla" for product "Thunderbird Esr"
 < 52.8.0
Search vendor "Mozilla" for product "Thunderbird Esr" and version " < 52.8.0"
-
Affected
in Microsoft
Search vendor "Microsoft"
 Windows 10
Search vendor "Microsoft" for product "Windows 10"
--
Safe