FreeBSD VuXML: Documenting security issues in FreeBSD and the FreeBSD Ports Collection

Prometheus -- arbitrary redirects

Affected packages
2.23.0 <= prometheus2 < 2.26.1
prometheus2 = 2.27.0


VuXML ID 59ab72fb-bccf-11eb-a38d-6805ca1caf5c
Discovery 2021-05-18
Entry 2021-06-01

Prometheus reports:

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.


CVE Name CVE-2021-29622