PT-2018-6176 · Zwserver · Zwserver

Published 2018-06-07 · Updated 2020-09-01 · CVE-2017-16149

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions: zwserver versions (affected versions not specified)

Description: The issue concerns a directory traversal problem, allowing an attacker to access the filesystem by manipulating the URL with "../". This can lead to the disclosure of private files on the system. A malicious actor can exploit this to access files outside the intended directory root. For example, an attacker can send a GET request to "/../../../../../../../../../../etc/passwd" to access sensitive files.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting access to sensitive files and directories until a patch is available. Avoid using the zwserver package for production environments; instead, use it only for local development or consider an alternative package that provides the necessary functionality without this issue.

Exploit

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2017-16149

GHSA-WHCM-29F4-J4MX

Affected Products

Zwserver

References · 6

• 🔥 https://github.com/JacksonGL/NPM-Vuln-PoC/tree/master/directory-traversal/zwserver · Exploit
• https://osv.dev/vulnerability/GHSA-whcm-29f4-j4mx · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2017-16149 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-16149 · Security Note
• https://npmjs.com/advisories/372 · Note
• https://nodesecurity.io/advisories/372 · Note