CVE-2018-8174 on CISA KEV

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 Se

01What CISA says about this vulnerability

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.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.exploit-db.com — https://www.exploit-db.com/exploits/44741/
• blog.0patch.com — https://blog.0patch.com/2018/05/a-single-instruction-micropatch-for.html
• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8174
• www.securityfocus.com — http://www.securityfocus.com/bid/103998

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Microsoft	Windows 7	32-bit Systems Service Pack 1, x64-based Systems Service Pack 1
Microsoft	Windows Server 2012 R2	(Server Core installation)
Microsoft	Windows RT 8.1	Windows RT 8.1
Microsoft	Windows Server 2008	32-bit Systems Service Pack 2, 32-bit Systems Service Pack 2 (Server Core installation), Itanium-Based Systems Service Pack 2, x64-based Systems Service Pack 2, x64-based Systems Service Pack 2 (Server Core installation)
Microsoft	Windows Server 2012	(Server Core installation)
Microsoft	Windows 8.1	32-bit systems, x64-based systems
Microsoft	Windows Server 2016	(Server Core installation)
Microsoft	Windows Server 2008 R2	Itanium-Based Systems Service Pack 1, x64-based Systems Service Pack 1, x64-based Systems Service Pack 1 (Server Core installation)
Microsoft	Windows 10	32-bit Systems, Version 1607 for 32-bit Systems, Version 1607 for x64-based Systems, Version 1703 for 32-bit Systems, Version 1703 for x64-based Systems, Version 1709 for 32-bit Systems, Version 1709 for x64-based Systems, Version 1803 for 32-bit Systems, Version 1803 for x64-based Systems, x64-based Systems
Microsoft	Windows 10 Servers	version 1709 (Server Core Installation), version 1803 (Server Core Installation)

06Detection

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