Thursday, May 20, 2021

CVE-2021-29622

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.

References to Advisories, Solutions, and Tools


References to Advisories, Solutions, and Tools

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Resourcehttps://github.com/prometheus/prometheus/releases/tag/v2.26.1https://github.com/prometheus/prometheus/releases/tag/v2.27.1https://github.com/prometheus/prometheus/security/advisories/GHSA-vx57-7f4q-fpc7
 

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