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Directory Traversal in jn_jj_server

High severity GitHub Reviewed Published Jul 23, 2018 to the GitHub Advisory Database • Updated Sep 5, 2023

Package

npm jn_jj_server (npm)

Affected versions

<= 0.0.8

Patched versions

None

Description

Affected versions of jn_jj_server resolve relative file paths, resulting in a directory traversal vulnerability. A malicious actor can use this vulnerability to access files outside of the intended directory root, which may result in the disclosure of private files on the vulnerable system.

Example request:

GET /../../../../../../../../../../etc/passwd HTTP/1.1
host:foo

Recommendation

No patch is available for this vulnerability.

It is recommended that the package is only used for local development, and if the functionality is needed for production, a different package is used instead.

References

Published to the GitHub Advisory Database Jul 23, 2018
Reviewed Jun 16, 2020
Last updated Sep 5, 2023

Severity

High

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(68th percentile)

Weaknesses

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Learn more on MITRE.

CVE ID

CVE-2017-16210

GHSA ID

GHSA-79p8-4cwq-rhqh

Source code

No known source code
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