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CVE-2021-42954

7.8 · HIGH

Zoho Remote Access Plus Server Windows Desktop Binary fixed from 10.1.2121.1 is affected by incorrect access control.

Published Nov 17, 2021CWE-732EPSS 0.39%

Overview

CVE-2021-42954 is a high-severity vulnerability. It was published on November 17, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Zoho Remote Access Plus Server Windows Desktop Binary fixed from 10.1.2121.1 is affected by incorrect access control. The installation directory is vulnerable to weak file permissions by allowing full control for Windows Everyone user group (non-admin or any guest users), thereby allowing privilege escalation, unauthorized password reset, stealing of sensitive data, access to credentials in plaintext, access to registry values, tampering with configuration files, etc.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refmedium.com/nestedif/vulnerability-disclosure-improper-filesystem-permission-misconfigured-acls-zoho-r-a-p-56e195464b51Refmedium.com/nestedif/vulnerability-disclosure-improper-filesystem-permission-misconfigured-acls-zoho-r-a-p-56e195464b51

How CyberStrike helps

Frequently asked questions

What is CVE-2021-42954?

CVE-2021-42954 is a high-severity vulnerability. It was published on November 17, 2021 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2021-42954?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-42954?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2021-42954?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-42954 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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