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Prometheus - Open Redirect

ID: CVE-2021-29622

Severity: medium

Author: geeknik

Tags: cve2021,cve,prometheus,redirect

Description

Section titled “Description”

Prometheus 2.23.0 through 2.26.0 and 2.27.0 contains an open redirect vulnerability. To ensure a seamless transition to 2.27.0, the default UI was changed to the new UI with a URL prefixed by /new redirect to /. Due to a bug in the code, an attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.

YAML Source

Section titled “YAML Source”
id: CVE-2021-29622


info:
  name: Prometheus  - Open Redirect
  author: geeknik
  severity: medium
  description: Prometheus 2.23.0 through 2.26.0 and 2.27.0 contains an open redirect vulnerability. To ensure a seamless transition to 2.27.0, the default UI was changed to the new UI with a URL prefixed by /new redirect to /. Due to a bug in the code, an attacker can redirect a user to a malicious site and possibly obtain sensitive information, modify data, and/or execute unauthorized operations.
  impact: |
    An attacker can exploit this vulnerability to redirect users to malicious websites, leading to potential phishing attacks or the disclosure of sensitive information.
  remediation: 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.
  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
    - https://nvd.nist.gov/vuln/detail/CVE-2021-29622
    - https://github.com/d4n-sec/d4n-sec.github.io
  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
    epss-score: 0.00287
    epss-percentile: 0.68762
    cpe: cpe:2.3:a:prometheus:prometheus:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: prometheus
    product: prometheus
  tags: cve2021,cve,prometheus,redirect


http:
  - method: GET
    path:
      - "{{BaseURL}}/new/newhttp://interact.sh"


    matchers:
      - type: regex
        part: header
        regex:
          - '(?m)^(?:Location\s*?:\s*?)(?:https?://|//)?(?:[a-zA-Z0-9\-_\.@]*)interact\.sh.*$'
# digest: 490a004630440220658b04d1de05de83277494572b9a7a5018629921666811667a51fe51635106a102204e3f2fafa8ef23622c8a14d8e27d1a83d3cbaf881bbd63f19635f98e07d6145e:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-29622.yaml"

View on Github