cbcvebase.
CVE-2023-24880
published 2023-03-14

CVE-2023-24880: Windows SmartScreen Security Feature Bypass Vulnerability

PriorityP181medium4.4CVSS 3.1
AVLACLPRNUIRSUCNILAL
KEVITWRansomware
CISA Known Exploited Vulnerabilitydue 2023-04-04
Exploited in the wild
EPSS
78.15%
99.5th percentile
Windows SmartScreen Security Feature Bypass Vulnerability

Affected

31 ranges· showing 25
VendorProductVersion rangeFixed in
microsoftwindows_10_1607< 10.0.14393.578610.0.14393.5786
microsoftwindows_10_1809< 10.0.17763.413110.0.17763.4131
microsoftwindows_10_20h2< 10.0.19042.272810.0.19042.2728
microsoftwindows_10_21h2< 10.0.19044.272810.0.19044.2728
microsoftwindows_10_22h2< 10.0.19045.272810.0.19045.2728
microsoftwindows_10_version_1607>= 10.0.14393.0 < 10.0.14393.578610.0.14393.5786
microsoftwindows_10_version_1809>= 10.0.0 < 10.0.17763.413110.0.17763.4131
microsoftwindows_10_version_1809>= 10.0.17763.0 < 10.0.17763.413110.0.17763.4131
microsoftwindows_10_version_20h2>= 10.0.0 < 10.0.19042.272810.0.19042.2728
microsoftwindows_10_version_21h2>= 10.0.19043.0 < 10.0.19044.272810.0.19044.2728
microsoftwindows_10_version_22h2>= 10.0.19045.0 < 10.0.19045.272810.0.19045.2728
microsoftwindows_11_21h2< 10.0.22000.169610.0.22000.1696
microsoftwindows_11_22h2< 10.0.22000.141310.0.22000.1413
microsoftwindows_11_version_21h2>= 10.0.0 < 10.0.22000.169610.0.22000.1696
microsoftwindows_11_version_22h2>= 10.0.22621.0 < 10.0.22621.141310.0.22621.1413
microsoftwindows_server_2016< 10.0.14393.578610.0.14393.5786
microsoftwindows_server_2016>= 10.0.14393.0 < 10.0.14393.578610.0.14393.5786
microsoftwindows_server_2019< 10.0.17763.413110.0.17763.4131
microsoftwindows_server_2019>= 10.0.17763.0 < 10.0.17763.413110.0.17763.4131
microsoftwindows_server_2022< 10.0.20348.160210.0.20348.1602
microsoftwindows_server_2022>= 10.0.20348.0 < 10.0.20348.160710.0.20348.1607
msrcwindows_10_version_1607
msrcwindows_10_version_1809
msrcwindows_10_version_20h2
msrcwindows_10_version_21h2

Detection & IOCsextracted from sources · hover to see the quote

  • Attackers craft malicious files that bypass Mark of the Web (MOTW) defenses by evading the Zone Identifier Alternate Data Stream (ADS) check; detect files missing or with manipulated ZoneId ADS (ZoneId=3) that were downloaded from the internet
  • Monitor for files downloaded from the internet that lack or have a tampered NTFS Alternate Data Stream (ADS) Zone Identifier, specifically missing ZoneId=3, which would cause SmartScreen reputation checks to be skipped
  • CVE-2023-24880 is actively exploited in the wild; hunt for crafted documents and infected files delivered via email or web that bypass SmartScreen and Protected View in Microsoft Office
  • Threat actors are spreading malware via crafted documents and other infected files that exploit this bypass; monitor for Office documents opened outside Protected View from internet-sourced files
  • ·The exploit is low in complexity and requires no special privileges, lowering the bar for threat actors to weaponize it
  • ·Vulnerability is confirmed exploited in the wild and publicly disclosed as of March 2023 Patch Tuesday

CVSS provenance

nvdv3.14.4MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
vulncheck4.4MEDIUM
cisa4.4MEDIUM
vendor_msrc4.4MEDIUM
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