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Kaspersky LabKLA12421

HistoryJan 11, 2022 - 12:00 a.m.

KLA12421 Multiple vulnerabilities in Microsoft Developer Tools

2022-01-1100:00:00

Kaspersky Lab

threats.kaspersky.com

7.2 High

CVSS2

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.4 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.2%

JSON

Multiple vulnerabilities were found in Microsoft Developer Tools. Malicious users can exploit these vulnerabilities to cause denial of service, gain privileges.

Below is a complete list of vulnerabilities:

Denial of service vulnerability in .NET Framework can be exploited remotely to cause denial of service.
An elevation of privilege vulnerability in Microsoft Diagnostics Hub Standard Collector Runtime can be exploited remotely to gain privileges.

Original advisories

CVE-2022-21911

CVE-2022-21871

Related products

Microsoft-.NET-Framework

Microsoft-Diagnostics-Hub-Standard-Collector-Runtime

CVE list

CVE-2022-21911 critical

CVE-2022-21871 critical

KB list

Solution

Install necessary updates from the KB section, that are listed in your Windows Update (Windows Update usually can be accessed from the Control Panel)

Impacts

Denial of service. Exploitation of vulnerabilities with this impact can lead to loss of system availability or critical functional fault.

Privilege escalation. Exploitation of vulnerabilities with this impact can lead to performing by abuser actions, which are normally disallowed for current role.