CVE-2022-35830: Remote Procedure Call Runtime Remote Code Execution Vulnerability

Overview

Severity: High (CVSS 8.1)
CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Category: Remote Code Execution
Exploit Status: Not Exploited
Exploitation Likelihood: Less Likely
Patch Tuesday: 2022-Sep
Released: 2022-09-13
EPSS Score: 5.99% (percentile: 90.7%)

FAQ

According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability? Successful exploitation of this vulnerability requires an attacker to invest time in repeated exploitation attempts through sending constant or intermittent data. How could an attacker exploit this vulnerability? An unauthenticated attacker on local networks could spoof their IP address as localhost and access functionality in portmap.sys intended to only be reachable from localhost.

Affected Products (16)

Windows

Windows Server 2019
Windows Server 2019 (Server Core installation)
Windows Server 2022
Windows Server 2022 (Server Core installation)
Windows Server 2016
Windows Server 2016 (Server Core installation)

ESU

Windows Server 2008 for 32-bit Systems Service Pack 2
Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)
Windows Server 2008 for x64-based Systems Service Pack 2
Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)
Windows Server 2008 R2 for x64-based Systems Service Pack 1
Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)
Windows Server 2012
Windows Server 2012 (Server Core installation)
Windows Server 2012 R2
Windows Server 2012 R2 (Server Core installation)

Security Updates (11)

Acknowledgments

Microsoft Offensive Research & Security Engineering (MORSE), <a href="https://twitter.com/guhe120">Yuki Chen</a> with <a href="https://www.cyberkl.com/">Cyber KunLun</a>

Revision History

2022-09-13: Information published.