CVE-2018-5174
published 2018-06-11CVE-2018-5174: 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…
PriorityP340high7.5CVSS 3.0
AVNACLPRNUINSUCNIHAN
EPSS
1.87%
77.2th percentile
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.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | firefox | — | — |
| debian | firefox-esr | — | — |
| debian | thunderbird | — | — |
| mozilla | firefox | < 52.8.0 | 52.8.0 |
| mozilla | firefox | < 60.0 | 60.0 |
| mozilla | firefox | >= unspecified < 60 | 60 |
| mozilla | firefox_esr | >= unspecified < 52.8 | 52.8 |
| mozilla | thunderbird | < 52.8.0 | 52.8.0 |
| mozilla | thunderbird | >= unspecified < 52.8 | 52.8 |
| mozilla | thunderbird_esr | < 52.8.0 | 52.8.0 |
| mozilla | thunderbird_esr | >= unspecified < 52.8 | 52.8 |
CVSS provenance
nvdv3.07.5HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:P/A:N
vendor_debian7.5LOW
vendor_redhat7.5HIGH
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Red Hat
Mozilla: Windows Defender SmartScreen UI runs with less secure behavior for downloaded files in Windows 10 April 2018 Update
vendor_redhat·2018-05-09·CVSS 7.5
CVE-2018-5174 [HIGH] CWE-451 Mozilla: Windows Defender SmartScreen UI runs with less secure behavior for downloaded files in Windows 10 April 2018 Update
Mozilla: Windows Defender SmartScreen UI runs with less secure behavior for downloaded files in Windows 10 April 2018 Update
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 s
Debian
CVE-2018-5174: firefox - In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SE...
vendor_debian·2018·CVSS 7.5
CVE-2018-5174 [HIGH] CVE-2018-5174: firefox - In the Windows 10 April 2018 Update, Windows Defender SmartScreen honors the "SE...
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.
Scope: lo
GHSA
GHSA-cx2r-fxw7-w76f: 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
ghsa_unreviewed·2022-05-13
CVE-2018-5174 [HIGH] GHSA-cx2r-fxw7-w76f: 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
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.
No detection rules found.
No public exploits indexed.
http://www.securityfocus.com/bid/104136http://www.securitytracker.com/id/1040896https://bugzilla.mozilla.org/show_bug.cgi?id=1447080https://www.mozilla.org/security/advisories/mfsa2018-11/https://www.mozilla.org/security/advisories/mfsa2018-12/https://www.mozilla.org/security/advisories/mfsa2018-13/http://www.securityfocus.com/bid/104136http://www.securitytracker.com/id/1040896https://bugzilla.mozilla.org/show_bug.cgi?id=1447080https://www.mozilla.org/security/advisories/mfsa2018-11/https://www.mozilla.org/security/advisories/mfsa2018-12/https://www.mozilla.org/security/advisories/mfsa2018-13/
2018-06-11
Published