Path Traversal in Caucho Technology, Inc. Resin
CVE-2017-20284
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.012 (67.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 68th percentile — 67.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.012 · change: +0.002
Affected products
Weakness classification (CWE)
References
- Nuclei Template (technical-description)
- Researcher Blog (exploit)
- Product Webpage (product)
- www.vulncheck.com/advisories/caucho-resin-resin-doc-unauthenticated-path-traver… (third-party-advisory)
Frequently asked questions
- What is CVE-2017-20284?
- CVE-2017-20284 is a high-severity vulnerability in Caucho Technology, Inc. Resin, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-09-18.
- How severe is CVE-2017-20284?
- High severity. CVSS v3 base score is 7.5 out of 10.