PT-2021-14819 · Lantronix · Lantronix Premierwave 2050

Matt Wiseman · Published 2021-12-22 · Updated 2022-04-28 · CVE-2021-21889

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

AV:N/AC:L/PR:L/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 stack-based buffer overflow issue exists in the Web Manager Ping functionality, allowing remote code execution through a specially crafted HTTP request. An attacker can trigger this issue by making an authenticated HTTP request.

Recommendations For version 8.9.0.0R4, consider restricting access to the Web Manager Ping functionality until a patch is available. As a temporary workaround, limit the ability to make authenticated HTTP requests to the vulnerable functionality to minimize the risk of exploitation.

Exploit

Fix

Memory Corruption

Stack Overflow

Weakness Enumeration

CWE-787

CWE-121

Related Identifiers

CVE-2021-21889

Affected Products

Lantronix Premierwave 2050

References · 3

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1333 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-21889 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21889 · Vendor Advisory