id: CVE-2021-29622 info: name: Prometheus v2.23.0 to v2.26.0, and v2.27.0 Open Redirect author: geeknik severity: medium description: 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. reference: - https://github.com/prometheus/prometheus/security/advisories/GHSA-vx57-7f4q-fpc7 - https://github.com/prometheus/prometheus/releases/tag/v2.26.1 - https://github.com/prometheus/prometheus/releases/tag/v2.27.1 classification: cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N cvss-score: 6.1 cve-id: CVE-2021-29622 cwe-id: CWE-601 tags: cve,cve2021,prometheus,redirect requests: - method: GET path: - "{{BaseURL}}/new/newhttp://interact.sh" matchers: - type: regex regex: - '(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_\.@]*)interact\.sh.*$' part: header