Lucene search

K
kasperskyKaspersky LabKLA12507
HistoryApr 12, 2022 - 12:00 a.m.

KLA12507 Multiple vulnerabilities in Microsoft Office

2022-04-1200:00:00
Kaspersky Lab
threats.kaspersky.com
41
microsoft office
arbitrary code execution
spoofing
obtain sensitive information

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.019

Percentile

88.8%

Multiple vulnerabilities were found in Microsoft Office. Malicious users can exploit these vulnerabilities to execute arbitrary code, spoof user interface, obtain sensitive information.

Below is a complete list of vulnerabilities:

  1. A remote code execution vulnerability in Microsoft Excel can be exploited remotely to execute arbitrary code.
  2. A remote code execution vulnerability in Windows Graphics Component can be exploited remotely to execute arbitrary code.
  3. A spoofing vulnerability in Microsoft SharePoint Server can be exploited remotely to spoof user interface.
  4. An information disclosure vulnerability in Skype for Business can be exploited remotely to obtain sensitive information.
  5. A spoofing vulnerability in Skype for Business and Lync can be exploited remotely to spoof user interface.

Original advisories

CVE-2022-26901

CVE-2022-26903

CVE-2022-24473

CVE-2022-24472

CVE-2022-26911

CVE-2022-26910

Exploitation

Malware exists for this vulnerability. Usually such malware is classified as Exploit. More details.

Related products

Microsoft-Lync

Microsoft-Lync-Server

CVE list

CVE-2022-26903 critical

CVE-2022-26901 critical

CVE-2022-24473 critical

CVE-2022-24472 critical

CVE-2022-26911 high

CVE-2022-26910 high

KB list

5002162

5002148

5002143

5002180

5002177

5002189

5012686

5002175

5002169

5002191

5002183

5012681

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

  • ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

  • OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

  • SUI

Spoof user interface. Exploitation of vulnerabilities with this impact can lead to changes in user interface to beguile user into inaccurate behavior.

Affected Products

  • Skype for Business Server 2019 CU6Skype for Business Server 2015 CU12Microsoft Lync Server 2013 CU10

References

CVSS2

9.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.2

Confidence

High

EPSS

0.019

Percentile

88.8%