Detections
Analytics
Security Updates for Exchange (July 2021)
high Nessus Plugin ID 151664
Language:
Synopsis
The Microsoft Exchange Server installed on the remote host is affected by multiple vulnerabilities.Description
The Microsoft Exchange Server installed on the remote host is missing security updates. It is, therefore, affected by multiple vulnerabilities:- A remote code execution vulnerability. An attacker can exploit this to bypass authentication and execute unauthorized arbitrary commands. (CVE-2021-31196, CVE-2021-31206)
- An elevation of privilege vulnerability. An attacker can exploit this to gain elevated privileges. (CVE-2021-33768, CVE-2021-34470)
Note: Nessus is unable to determine if the latest Active Directory schema has been applied.
Solution
Microsoft has released the following KBs to address these issues:- KB5003611
- KB5003612
- KB5004778
- KB5004779
- KB5004780
See Also
http://www.nessus.org/u?a44a0d8a
http://www.nessus.org/u?4f529b54
http://www.nessus.org/u?ecec1115
Plugin Details
Severity: High
ID: 151664
File Name: smb_nt_ms21_jul_exchange.nasl
Version: 1.9
Type: local
Agent: windows
Family: Windows : Microsoft Bulletins
Published: 7/15/2021
Updated: 5/9/2022
Supported Sensors: Frictionless Assessment Agent, Nessus
Risk Information
VPR
Risk Factor: Critical
Score: 9.0
CVSS v2
Risk Factor: High
Base Score: 7.9
Temporal Score: 6.9
Vector: CVSS2#AV:A/AC:M/Au:N/C:C/I:C/A:C
CVSS Score Source: CVE-2021-31206
CVSS v3
Risk Factor: High
Base Score: 8
Temporal Score: 7.6
Vector: CVSS:3.0/AV:A/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
CVSS Score Source: CVE-2021-34470
Vulnerability Information
CPE: cpe:/a:microsoft:exchange_server
Required KB Items: SMB/MS_Bulletin_Checks/Possible
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 7/13/2021
Vulnerability Publication Date: 7/13/2021
Reference Information
CVE: CVE-2021-31196, CVE-2021-31206, CVE-2021-33768, CVE-2021-34470