NVD

CVE-2019-1089 Detail

Current 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'.

View Analysis Description

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
CWE-264	Permissions, Privileges, and Access Controls	NIST

Known Affected Software Configurations Switch to CPE 2.2

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Change History

2 change records found show changes

Initial Analysis 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:
07/19/2019
Source:
MITRE

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Information Technology Laboratory

National Vulnerability Database