Security restrictions bypass in Microsoft Windows Device Guard
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2018-8492 |
| CWE-ID | CWE-94 |
| Exploitation vector | Local |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Windows Server Operating systems & Components / Operating system Windows Operating systems & Components / Operating system |
| Vendor | Microsoft |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Code injection
EUVDB-ID: #VU15277
Risk: Low
CVSSv3.1: 4.6 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-8492
CWE-ID:
CWE-94 - Improper Control of Generation of Code ('Code Injection')
Exploit availability: No
DescriptionThe vulnerability allows a local attacker to bypass security restrictions on the target system.
The vulnerability exists due to an error when PowerShell exposes functions and processes user supplied code. A local attacker can inject code into a trusted PowerShell session to bypass the Device Guard Code Integrity policy on the local machine.
MitigationInstall updates from vendor's website.
Vulnerable software versionsWindows Server: 2016 - 2019 1803
Windows: 10 1607 - 10 1809
External linkshttp://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8492
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
