Path traversal in serve-here.js - #VU18922
Published: June 27, 2019 / Updated: June 28, 2019
Vulnerability identifier: #VU18922
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: npm Inc.
Affected software:
serve-here.js
serve-here.js
Detailed vulnerability description
The vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists due to the package accepts pathname of URLs and adds it to the web root without sanitization. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.
PoC:
http://[host]/../../../../etc/passswd
Remediation
Install updates from vendor's website.