PT-2017-18445 · Microsoft · Device Guard+3

Enigma0X3 + 3 · Published 2017-08-08 · Updated 2023-10-25 · CVE-2017-8625

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Internet Explorer versions in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016

Description A security issue exists due to Internet Explorer failing to validate User Mode Code Integrity (UMCI) policies, allowing an attacker to bypass Device Guard UMCI policies.

Recommendations For Internet Explorer in Windows 10 Gold, 1511, 1607, 1703, and Windows Server 2016, update Internet Explorer to a version that properly validates UMCI policies to prevent bypassing Device Guard policies.

Exploit

Fix

Incorrect Default Permissions

Weakness Enumeration

CWE-276

Related Identifiers

CVE-2017-8625

Affected Products

Device Guard

Internet Explorer

Windows 10

Windows Server 2016

References · 9

• 🔥 https://posts.specterops.io/umci-vs-internet-explorer-exploring-cve-2017-8625-3946536c6442 · Exploit
• 🔥 https://msitpros.com/?p=3909 · Exploit
• https://osv.dev/vulnerability/CVE-2017-8625 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8625 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8625 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-8625 · Security Note
• http://securitytracker.com/id/1039112 · Note
• http://securityfocus.com/bid/100063 · Note
• https://oddvar.moe/2017/08/13/bypassing-device-guard-umci-using-chm-cve-2017-8625 · Note