CVE-2017-20284
Medium
Elevated severity or exploit probability.
CVSS base
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS — probability of exploitation (30 days)
1.0%
59.9th percentile
CISA KEV
Not listed
Weakness / dates
CWE-22
Published 2026-09-18 · modified 2026-09-22
CVSS breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
| Attack Vector | N | Network |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | H | High |
| Integrity | N | None |
| Availability | N | None |
Timeline
- 2026-09-18 — Published (NVD)
- 2026-09-22 — Last modified (NVD)
Description
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.
References
- https://blkstone.github.io/2017/10/30/resin-attack-vectors/
- https://caucho.com/products/resin
- 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