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CVE-2022-36021

5.5 · MEDIUM

Redis is an in-memory database that persists on disk.

Published Mar 1, 2023CWE-407EPSS 59.77%

Overview

CVE-2022-36021 is a medium-severity vulnerability. It was published on March 1, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

Redis is an in-memory database that persists on disk. Authenticated users can use string matching commands (like `SCAN` or `KEYS`) with a specially crafted pattern to trigger a denial-of-service attack on Redis, causing it to hang and consume 100% CPU time. The problem is fixed in Redis versions 6.0.18, 6.2.11, 7.0.9.

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/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84GitHubgithub.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqvGitHubgithub.com/redis/redis/commit/dcbfcb916ca1a269b3feef86ee86835294758f84GitHubgithub.com/redis/redis/security/advisories/GHSA-jr7j-rfj5-8xqv

How CyberStrike helps

Frequently asked questions

What is CVE-2022-36021?

CVE-2022-36021 is a medium-severity vulnerability. It was published on March 1, 2023 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-36021?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-36021?

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-2022-36021?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-36021 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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