Detections
Analytics
Windows PrintNightmare Registry Exposure CVE-2021-34527 OOB Security Update RCE (July 2021)
high Nessus Plugin ID 151488
Language:
Synopsis
The remote Windows host is affected by a remote code execution vulnerability.Description
A remote command execution vulnerability exists in Windows Print Spooler service improperly performs privileged file operations. An authenticated, remote attacker can exploit this to bypass and run arbitrary code with SYSTEM privileges. The remote system is not fully secure as the point and print registry settings contain an insecure configuration in one of the following locations/keys:- HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint
- HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint\NoWarningNoElevationOnInstall
- HKLM\SOFTWARE\Policies\Microsoft\Windows NT\Printers\PointAndPrint\UpdatePromptSettings
Solution
See Vendor Advisory.See Also
https://support.microsoft.com/en-us/help/5004950
https://support.microsoft.com/en-us/help/5004951
https://support.microsoft.com/en-us/help/5004953
https://support.microsoft.com/en-us/help/5004954
https://support.microsoft.com/en-us/help/5004955
https://support.microsoft.com/en-us/help/5004956
https://support.microsoft.com/en-us/help/5004958
https://support.microsoft.com/en-us/help/5004959
https://support.microsoft.com/en-us/help/5004960
https://support.microsoft.com/en-us/help/5008212
https://support.microsoft.com/en-us/help/5018427
https://support.microsoft.com/en-us/help/5007215
https://support.microsoft.com/en-us/help/5019959
http://www.nessus.org/u?c80300b5
http://www.nessus.org/u?2cdd3bd3
http://www.nessus.org/u?f6f8e649
https://support.microsoft.com/en-us/help/5004945
https://support.microsoft.com/en-us/help/5004946
Plugin Details
Severity: High
ID: 151488
File Name: smb_nt_ms21_jul_CVE-2021-34527_reg_check.nasl
Version: 1.19
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 7/9/2021
Updated: 10/16/2024
Supported Sensors: Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.7
CVSS v2
Risk Factor: High
Base Score: 9
Temporal Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS Score Source: CVE-2021-34527
CVSS v3
Risk Factor: High
Base Score: 8.8
Temporal Score: 8.4
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:microsoft:windows
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/1/2021
Vulnerability Publication Date: 7/1/2021
CISA Known Exploited Vulnerability Due Dates: 7/20/2021
Exploitable With
CANVAS (CANVAS)
Core Impact
Reference Information
CVE: CVE-2021-34527
IAVA: 2021-A-0299
MSFT: MS21-5004945, MS21-5004946, MS21-5004947, MS21-5004948, MS21-5004950, MS21-5004951, MS21-5004953, MS21-5004954, MS21-5004955, MS21-5004956, MS21-5004958, MS21-5004959, MS21-5004960
MSKB: 5004945, 5004946, 5004947, 5004948, 5004950, 5004951, 5004953, 5004954, 5004955, 5004956, 5004958, 5004959, 5004960