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Home > Cybersecurity > VMware fixes critical vRealize Log Insight security flaws

VMware fixes critical vRealize Log Insight security flaws

The most recent VMware vRealize Log Insight patches address the critical and high severity vulnerabilities.


Ezgi Koc Ezgi Koc
January 25, 2023
3 min read
VMware vRealize updates addressing security flaws
  • VMware was privately notified that it is facing multiple vulnerabilities with a maximum CVSSv3 base score of 9.8.
  • The vulnerabilities include a directory traversal vulnerability, a broken access control vulnerability, a deserialization vulnerability, and an information disclosure vulnerability.
  • Vmware provides fixes to different versions of VMware vRealize Log Insight vulnerabilities which you can find below.

On the 24th of January, VMware announced that it was privately notified of several vulnerabilities in VMware vRealize Log Insight. According to VMware, the issue is of critical severity, with a maximum CVSSv3 base score of 9.8. A directory traversal vulnerability, a broken access control vulnerability, a deserialization vulnerability, and an information disclosure vulnerability are among the reported flaws.

Table of Contents

  • Multiple vulnerabilities found
  • Fixes for the vulnerabilities
  • Workaround
    • Step 1: Download the script
    • Step 2: Log into a node
    • Step 3: Upload the script
    • Step 4: Change permissions
    • Step 5: Execute the script
    • Step 6: Repeat this for each node

Multiple vulnerabilities found

The first vulnerability is a directory traversal vulnerability tracked as CVE-2022-31706 with a CVSSv3 base score of 9.8. A directory traversal vulnerability is caused by insufficient validation of user browser input. If the attack is successful, the threat actor will be able to access restricted files and run commands on the server.

The second vulnerability is a broken access control vulnerability tracked as CVE-2022-31704 with a CVSSv3 base score of 9.8. A broken access control vulnerability could result in malicious actors injecting files into the operating system of an impacted device remotely.

The third vulnerability is a deserialization vulnerability tracked as CVE-2022-31710 with a CVSSv3 base score of 7.5. A deserialization vulnerability may result in an unauthenticated malicious actor remotely causing a denial of service.

The last vulnerability is an information disclosure vulnerability tracked as CVE-2022-31711 with a CVSSv3 base score of 5.3. This vulnerability can result in a malicious actor remotely collecting sensitive information without authentication.

VMware report
VMware report.

Fixes for the vulnerabilities

VMware has released patches for the aforementioned vulnerabilities; updating VMware vRealize Log Insight and VMware Cloud Foundation components:

Click here for VMware vRealize Log Insight version 8.x fix details

Click here for VMware Cloud Foundation versions 4.x and 3.x fix details

Workaround

VMware has also provided a workaround for those issues for the system administrators who can’t apply the patches on their instances. Simply follow the steps below to apply the temporary fixes on the affected systems, for each vRealize Log Insight node

Step 1: Download the script

Download the script provided by VMware as a temporary solution for the issue by clicking here.

Step 2: Log into a node

Log into the node as root via SSH (using Putty.exe or any similar SSH Client)

Step 3: Upload the script

Upload the KB90635.sh script into the /opt/vmware/bin/ folder using WinSCP or a similar utility

Step 4: Change permissions

Change the permissions of the file and make it executable by running the commands below:

chmod +x /opt/vmware/bin/KB90635.sh
chmod 755 /opt/vmware/bin/KB90635.sh

Step 5: Execute the script

Execute the script passing the “setup” argument:

/opt/vmware/bin/KB90635.sh setup

Step 6: Repeat this for each node

Proceed to the next node in the cluster and follow steps 2-5 on each appliance

See more Cybersecurity News

A comprehensive guide to understanding Cybersecurity: What is Cybersecurity?


Tags: VMware
Ezgi Koc

Ezgi Koc

Ezgi Koc is an editor at Cloud7. She graduated from Ege University with a bachelor's degree in English Language and Literature. She has always had great interest in technology, both hardware and software, since her childhood and decided to pursue a career that would enable her to broaden her horizons in this field. She is very passionate about video games as a Twitch affiliate and streams games in her free time.

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