cbcvebase.
CVE-2018-8174
published 2018-05-09

CVE-2018-8174: A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution…

PriorityP191high7.5CVSS 3.1
AVNACHPRNUIRSUCHIHAH
KEVITWEXPLOITRansomwareInitial access
CISA Known Exploited Vulnerabilitydue 2022-08-15
Exploited in the wild
EPSS
87.64%
99.7th percentile
A remote code execution vulnerability exists in the way that the VBScript engine handles objects in memory, aka "Windows VBScript Engine Remote Code Execution Vulnerability." This affects Windows 7, Windows Server 2012 R2, Windows RT 8.1, Windows Server 2008, Windows Server 2012, Windows 8.1, Windows Server 2016, Windows Server 2008 R2, Windows 10, Windows 10 Servers.

Affected

45 ranges· showing 25
VendorProductVersion rangeFixed in
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10
microsoftwindows_10_servers
microsoftwindows_10_servers
microsoftwindows_7
microsoftwindows_7
microsoftwindows_8.1
microsoftwindows_8.1
microsoftwindows_rt_8.1
microsoftwindows_server_2008
microsoftwindows_server_2008
microsoftwindows_server_2008
microsoftwindows_server_2008
microsoftwindows_server_2008
microsoftwindows_server_2008
microsoftwindows_server_2008_r2
microsoftwindows_server_2008_r2

Detection & IOCsextracted from sources · hover to see the quote

domainfindmyname[.]pw
hash0d6fe137790e2ebdf4fac2dd500656f3a6f74c0d1598251929ea3558f965675f
path%AppData%\Local\Temp\2fda
filenamePasswordsList.txt
filenameCookieList.txt
domainip-api[.]com
commandSELECT origin_url, username_value, password_value FROM logins
  • The Fallout Exploit Kit landing page uses HTML tags (span, h3, p) to hide obfuscated VBScript exploit code for CVE-2018-8174; look for heavily obfuscated tag content in landing pages redirecting to findmyname[.]pw.
  • Azorult payload uses process hollowing: creates a suspended copy of itself, injects decrypted payload, then resumes execution. Detect suspended self-process creation followed by cross-process memory writes.
  • Microsoft rates CVE-2018-8174 as 'Exploitation Detected' at time of patch release; treat any unpatched system running Internet Explorer or VBScript as actively at risk.
  • ·CVE-2018-8174 affects VBScript in Internet Explorer; Internet Explorer 11 on Windows 10 RS3 is NOT vulnerable because VBScript is disabled by default in that configuration.

CVSS provenance

nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.07.6HIGHAV:N/AC:H/Au:N/C:C/I:C/A:C
vulncheck7.5HIGH
cisa7.5HIGH
vendor_msrc7.5HIGH
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