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CVE-2021-27471

7.7 · HIGH

The parsing mechanism that processes certain file types does not provide input sanitization for file paths.

Published Mar 23, 2022CWE-22EPSS 2.86%

Overview

CVE-2021-27471 is a high-severity vulnerability. It was published on March 23, 2022 and has a CVSS 3.1 base score of 7.7 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

Technical description

The parsing mechanism that processes certain file types does not provide input sanitization for file paths. This may allow an attacker to craft malicious files that, when opened by Rockwell Automation Connected Components Workbench v12.00.00 and prior, can traverse the file system. If successfully exploited, an attacker could overwrite existing files and create additional files with the same permissions of the Connected Components Workbench software. User interaction is required for this exploit to be successful.

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

Refrockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435CISAwww.cisa.gov/uscert/ics/advisories/icsa-21-133-01Refrockwellautomation.custhelp.com/app/answers/answer_view/a_id/1131435CISAwww.cisa.gov/uscert/ics/advisories/icsa-21-133-01

How CyberStrike helps

Frequently asked questions

What is CVE-2021-27471?

CVE-2021-27471 is a high-severity vulnerability. It was published on March 23, 2022 and has a CVSS 3.1 base score of 7.7 (HIGH).

How severe is CVE-2021-27471?

This vulnerability has a CVSS 3.1 base score of 7.7, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-27471?

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-2021-27471?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-27471 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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