CVE-2021-29622

Arbitrary redirects under /new endpoint

State
Published
Severity
6.5 Medium
Published
May 19, 2021
Updated
Aug 3, 2024
Reserved
Mar 30, 2021

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.16.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:NGitHub_M

Weaknesses

  • CWE-601 URL Redirection to Untrusted Site ('Open Redirect')

Affected Products

ProductVersions
prometheusprometheus
  • >= 2.23.0, < 2.27.1Affected

References

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