What is CVE-2021-27766?

CVE-2021-27766 is a vulnerability affecting the BigFix Client installer, created with InstallShield, that could allow a local user to perform privilege escalation.

How does CVE-2021-27766 impact Hcltech Bigfix Platform?

CVE-2021-27766 affects Hcltech Bigfix Platform versions 9.5 to 9.5.18 and versions 10 to 10.0.5, potentially allowing local users to perform privilege escalation.

What is the severity of CVE-2021-27766?

CVE-2021-27766 has a severity rating of 7.8 (high).

How can I fix CVE-2021-27766?

To fix CVE-2021-27766, update the BigFix Client installer to a version that includes the fix for the underlying vulnerability in InstallShield.

Where can I find more information about CVE-2021-27766?

More information about CVE-2021-27766 can be found in the vulnerability disclosures document: https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0024/MNDT-2022-0024.md and the Hcltech support article: https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098116.

Vulnerability/
CVE-2021-27766

high

7.8

CWE

269

6/5/2022

17/9/2024

CVE-2021-27766: HCL BigFix Platform Client is affected by a Privilege Escalation Vulnerability

First published: Fri May 06 2022(Updated: )

The BigFix Client installer is created with InstallShield, which was affected by CVE-2021-41526, a vulnerability that could allow a local user to perform a privilege escalation. This vulnerability was resolved by updating to an InstallShield version with the underlying vulnerability fixed.

Credit: psirt@hcl.com

Affected Software	Affected Version	How to fix
Hcltech Bigfix Platform	>=9.5<=9.5.18
Hcltech Bigfix Platform	>=10<=10.0.5

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Frequently Asked Questions

What is CVE-2021-27766?
CVE-2021-27766 is a vulnerability affecting the BigFix Client installer, created with InstallShield, that could allow a local user to perform privilege escalation.
How does CVE-2021-27766 impact Hcltech Bigfix Platform?
CVE-2021-27766 affects Hcltech Bigfix Platform versions 9.5 to 9.5.18 and versions 10 to 10.0.5, potentially allowing local users to perform privilege escalation.
What is the severity of CVE-2021-27766?
CVE-2021-27766 has a severity rating of 7.8 (high).
How can I fix CVE-2021-27766?
To fix CVE-2021-27766, update the BigFix Client installer to a version that includes the fix for the underlying vulnerability in InstallShield.
Where can I find more information about CVE-2021-27766?
More information about CVE-2021-27766 can be found in the vulnerability disclosures document: https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2022/MNDT-2022-0024/MNDT-2022-0024.md and the Hcltech support article: https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0098116.

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vendor/hcltech
canonical/hcltech bigfix platform
version/hcltech bigfix platform/9.5
version/hcltech bigfix platform/9.5.18
version/hcltech bigfix platform/10
version/hcltech bigfix platform/10.0.5

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