PT-2021-7505 · Lantronix+1 · Lantronix Premierwave 2050+1

Matt Wiseman · Published 2021-12-22 · Updated 2025-06-23 · CVE-2021-21881

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 Hirschmann BAT-C2 (affected versions not specified)

Description A command injection vulnerability exists in the Web Manager Wireless Network Scanner functionality, allowing a specially-crafted HTTP request to lead to command execution. An attacker can make an authenticated HTTP request to trigger this issue. The vulnerability is also present in the Hirschmann BAT-C2 WLAN client firmware due to insufficient neutralization of special elements used in an OS command, which can be exploited by sending a specially-formed HTTP request to execute arbitrary code.

Recommendations For Lantronix PremierWave 2050 version 8.9.0.0R4, consider disabling the Web Manager Wireless Network Scanner functionality until a patch is available. For Hirschmann BAT-C2, restrict access to the WLAN client firmware to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

BDU:2022-07024

CVE-2021-21881

Affected Products

Hirschmann Bat-C2

Lantronix Premierwave 2050

References · 6

• 🔥 https://talosintelligence.com/vulnerability_reports/TALOS-2021-1325 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-21881 · Security Note
• https://osv.dev/vulnerability/CVE-2021-21881 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-07024 · Security Note
• https://belden.com/dfsmedia/f1e38517e0cd4caa8b1acb6619890f5e/15087-source · Note
• https://t.me/aptreports/19743 · Telegram Post