Privilege escalation in Microsoft Windows NDIS

Published: 2018-08-14

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2018-8342 CVE-2018-8343
CWE-ID	CWE-119
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	Windows Server Operating systems & Components / Operating system Windows Operating systems & Components / Operating system
Vendor	Microsoft

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Privilege escalation

EUVDB-ID: #VU14401

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-8342

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists in the Network Driver Interface Specification (NDIS) due to ndis.sys fails to check the length of a buffer prior to copying memory to it. A local attacker can run a specially crafted application and trigger memory corruption to gain SYSTEM privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2008 R2

Windows: 7

CPE2.3

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8342

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.

2) Privilege escalation

EUVDB-ID: #VU14402