Input validation error in Windows and Windows Server - CVE-2019-1089

 

Input validation error in Windows and Windows Server - CVE-2019-1089

Published: July 10, 2019


Vulnerability identifier: #VU19135
CSH Severity: Low
CVSS v4.0: 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-2019-1089
CWE-ID: CWE-20
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Microsoft
Affected software:
Windows
Windows Server

Detailed vulnerability description

The vulnerability allows a local user to elevate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input when the RPC service Activation Kernel improperly handles an RPC request in rpcss.dll. A local user can create a specially crafted application, run it on the affected system and execute arbitrary code with elevated privileges.



How to mitigate CVE-2019-1089

Install update from vendor's website.

Sources