PT-2021-14824 · Lantronix · Lantronix Premierwave 2050

Matt Wiseman · Published 2021-12-22 · Updated 2022-08-31 · CVE-2021-21894

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions Lantronix PremierWave 2050 version 8.9.0.0R4

Description A directory traversal issue exists in the Web Manager FsTFtp functionality, allowing a specially crafted HTTP request to lead to arbitrary file overwrite and FsTFtp file disclosure. An attacker can trigger this issue by making an authenticated HTTP request.

Recommendations For Lantronix PremierWave 2050 version 8.9.0.0R4, consider restricting access to the Web Manager FsTFtp functionality until a fix is available. As a temporary workaround, limit the ability to make authenticated HTTP requests to the affected functionality to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2021-21894

Affected Products

Lantronix Premierwave 2050

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1337 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-21894 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21894 · Vendor Advisory