---
title: "CVE-2017-20284: Caucho Resin - Path Traversal"
description: "Caucho Resin contains a path traversal caused by directory traversal sequences in the inputFile request parameter of the jndi-appconfig tutorial servlet, letting remote unauthenticated attackers read arbitrary files."
url: https://panop.io/threat-heartbeat/CVE-2017-20284/
---

# CVE-2017-20284 Caucho Resin - Path Traversal

Caucho Resin contains a path traversal caused by directory traversal sequences in the inputFile request parameter of the jndi-appconfig tutorial servlet, letting remote unauthenticated attackers read arbitrary files.

CVSS base score 7.5 /10

High

CISA KEV

Exploited in the wild

Public exploit

None known

Authentication

Not required

EPSS

0.96% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2017-20284)

## Details

Type

Path Traversal

Impact

File System Read, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Published

18 September 2026

Updated

15 October 2026

Weakness

[CWE-22](https://cwe.mitre.org/data/definitions/22.html)

## Vendor fix

Update to the latest version of Caucho Resin.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2017-20284](https://nvd.nist.gov/vuln/detail/CVE-2017-20284)
- [https://blkstone.github.io/2017/10/30/resin-attack-vectors/](https://blkstone.github.io/2017/10/30/resin-attack-vectors/)
- [https://caucho.com/products/resin](https://caucho.com/products/resin)
- [https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/main/http/vulnerabilities/chanjet-tplus/chanjet-crm-sqli.yaml](https://raw.githubusercontent.com/projectdiscovery/nuclei-templates/main/http/vulnerabilities/chanjet-tplus/chanjet-crm-sqli.yaml)
- [https://www.vulncheck.com/advisories/caucho-resin-resin-doc-unauthenticated-path-traversal-via-jndi-appconfig-servlet](https://www.vulncheck.com/advisories/caucho-resin-resin-doc-unauthenticated-path-traversal-via-jndi-appconfig-servlet)
- [https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-02&host\_type=src&vulnerability=cve-2017-20284](https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2026-10-02&host_type=src&vulnerability=cve-2017-20284)
- [https://previdian.com/CVE-2017-20284](https://previdian.com/CVE-2017-20284)
- [https://www.cve.org/CVERecord?id=CVE-2017-20284](https://www.cve.org/CVERecord?id=CVE-2017-20284)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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