CVE-2017-20284 (GCVE-0-2017-20284)
Vulnerability from cvelistv5 – Published: 2026-09-18 19:00 – Updated: 2026-09-18 19:46 X_Known Exploited VulnerabilityTitle
Caucho Resin resin-doc Unauthenticated Path Traversal via jndi-appconfig Servlet
Summary
Caucho Resin contains a path traversal vulnerability in the documentation webapp (resin-doc) that allows remote unauthenticated attackers to read arbitrary files by supplying a relative path through the inputFile request parameter of the jndi-appconfig tutorial servlet. Attackers can craft requests with directory traversal sequences to the servlet endpoint to read files outside the intended tutorial directory on the underlying system. Exploitation evidence was first observed by the Shadowserver Foundation on 2021-12-10.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 19:46 UTC
CWE
- CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://raw.githubusercontent.com/projectdiscover… | technical-description |
| https://blkstone.github.io/2017/10/30/resin-attac… | exploit |
| https://caucho.com/products/resin | product |
| https://www.vulncheck.com/advisories/caucho-resin… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Caucho Technology, Inc. | Resin |
Affected:
*
(custom)
|
guessed |
Date Public
2017-10-30 00:00
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 658a8fd7-a69e-4a17-86ca-a5f73c20f5d3
Exploited: Yes
Timestamps
First Seen: 2026-09-18
Asserted: 2026-09-18
Scope
Notes: Caucho Resin resin-doc Unauthenticated Path Traversal via jndi-appconfig Servlet | Affected: Caucho Technology / Resin | CVSS: 8.7 (HIGH) | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Caucho Resin resin-doc Unauthenticated Path Traversal via jndi-appconfig Servlet |
| Cve Id | CVE-2017-20284 |
| Vendor | Caucho Technology |
| Ghsa Id | GHSA-X46G-Q89H-7XG3 |
| Product | Resin |
| Added Date | 2026-09-18T19:20:49.638Z |
| Cvss Score | 8.7 |
| Epss Score | None |
| Previous Ids | |
| Cvss Severity | HIGH |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | None |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2017-20284 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-09-19 20:00 UTC
| Updated: 2026-09-19 20:00 UTC
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Nomenclature
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