NVD

CVE-2019-1089 Detail

Description

An elevation of privilege vulnerability exists in rpcss.dll when the RPC service Activation Kernel improperly handles an RPC request. To exploit this vulnerability, a low level authenticated attacker could run a specially crafted application. The security update addresses this vulnerability by correcting how rpcss.dll handles these requests., aka 'Windows RPCSS Elevation of Privilege Vulnerability'.

Severity

CVSS 3.x Severity and Metrics:

NIST: NVD

Base Score: 7.8 HIGH

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have published a CVSS score for this CVE based on publicly available information at the time of analysis. The CNA has not provided a score within the CVE List.

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-Kernel-Security-Callback-Privilege-Escalation.html	Third Party Advisory
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089	Patch Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Initial Analysis by NIST 7/19/2019 12:46:38 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 1137 characters. View Entire Change Record OR cpe:2.3:o:microsoft:windows_10:-::::::: cpe:2.3:o:microsoft:windows_10:1607::::::: cpe:2.3:o:microsoft:windows_10:1703::::::: cpe:2.3:o:microsoft:windows_10:1709::::::: cpe:2.3:o:microsoft:windows_10:1803::::::: cpe:2.3:o:microsoft:windows_10:1809::::::: cpe:2.3:o:microsoft:windows_10:1903::::::: cpe:2.3:o:microsoft:windows_7:-:sp1::::::* cpe:2.3:o:microsoft:windows_8.1:-:::::::
Added	CVSS V2		(AV:L/AC:L/Au:N/C:C/I:C/A:C)
Added	CVSS V3		AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		CWE-264
Changed	Reference Type	http://packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-Kernel-Security-Callback-Privilege-Escalation.html No Types Assigned	http://packetstormsecurity.com/files/153683/Microsoft-Windows-RPCSS-Activation-Kernel-Security-Callback-Privilege-Escalation.html Third Party Advisory
Changed	Reference Type	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089 No Types Assigned	https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1089 Patch, Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2019-1089
NVD Published Date:
07/15/2019
NVD Last Modified:
08/24/2020
Source:
Microsoft Corporation

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Information Technology Laboratory

National Vulnerability Database