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CVE-2021-29622GHSA-VX57-7F4Q-FPC7BIT-PROMETHEUS-2021-29622

Arbitrary redirects under /new endpoint

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 2.27.1
1 Nuclei template

Summary

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.

Timeline

  1. CVE published
  2. Record last updated
  3. EPSS reached 10%

    FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

  • prometheus prometheus

    From 2.23.0 · fixed in 2.27.1

References 4

GitHub · prometheus/prometheus

GitHub · projectdiscovery/nuclei-templates