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CVE-2021-29622

6.5 · MEDIUM

Prometheus is an open-source monitoring system and time series database.

Published May 19, 2021CWE-601EPSS 19.56%

Overview

CVE-2021-29622 is a medium-severity vulnerability. It was published on May 19, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Prometheus is an open-source monitoring system and time series database. In 2.23.0, Prometheus changed its default UI to the New ui. To ensure a seamless transition, the URL's prefixed by /new redirect to /. Due to a bug in the code, it is possible for an attacker to craft an URL that can redirect to any other URL, in the /new endpoint. If a user visits a prometheus server with a specially crafted address, they can be redirected to an arbitrary URL. The issue was patched in the 2.26.1 and 2.27.1 releases. In 2.28.0, the /new endpoint will be removed completely. The workaround is to disable access to /new via a reverse proxy in front of Prometheus.

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/prometheus/prometheus/releases/tag/v2.26.1GitHubgithub.com/prometheus/prometheus/releases/tag/v2.27.1GitHubgithub.com/prometheus/prometheus/security/advisories/GHSA-vx57-7f4q-fpc7GitHubgithub.com/prometheus/prometheus/releases/tag/v2.26.1GitHubgithub.com/prometheus/prometheus/releases/tag/v2.27.1GitHubgithub.com/prometheus/prometheus/security/advisories/GHSA-vx57-7f4q-fpc7

How CyberStrike helps

Frequently asked questions

What is CVE-2021-29622?

CVE-2021-29622 is a medium-severity vulnerability. It was published on May 19, 2021 and has a CVSS 3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2021-29622?

This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2021-29622?

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-2021-29622?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2021-29622 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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