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CVE-2021-22567

4.6 · MEDIUM

Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign.

Published Jan 5, 2022CWE-284EPSS 0.60%

Overview

CVE-2021-22567 is a medium-severity vulnerability. It was published on January 5, 2022 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign. An attacker could embed a source that is invisible to a code reviewer that modifies the behavior of a program in unexpected ways.

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

GitHubgithub.com/dart-lang/sdk/blob/main/CHANGELOG.mdGitHubgithub.com/dart-lang/sdk/commit/52519ea8eb4780c468c4c2ed00e7c8046ccfed41GitHubgithub.com/dart-lang/sdk/blob/main/CHANGELOG.mdGitHubgithub.com/dart-lang/sdk/commit/52519ea8eb4780c468c4c2ed00e7c8046ccfed41

How CyberStrike helps

Frequently asked questions

What is CVE-2021-22567?

CVE-2021-22567 is a medium-severity vulnerability. It was published on January 5, 2022 and has a CVSS 3.1 base score of 4.6 (MEDIUM).

How severe is CVE-2021-22567?

This vulnerability has a CVSS 3.1 base score of 4.6, rated MEDIUM. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2021-22567?

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-2021-22567?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-22567 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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