Path traversal in NeoGate TG400 - CVE-2021-27328

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Main Vulnerability Database Vulnerabilities #VU50865

Path traversal in NeoGate TG400 - CVE-2021-27328

Published: February 23, 2021


Vulnerability identifier: #VU50865
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-27328
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Yeastar
Affected software:
NeoGate TG400

Detailed vulnerability description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences within the "1404" parameter. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system.


How to mitigate CVE-2021-27328

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources