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)

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.

Affected products

Weakness classification (CWE)

References

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.