CVE-2021-21892

A stack-based buffer overflow vulnerability exists in the Web Manager FsUnmount functionality of Lantronix PremierWave 2050 8.9.0.0R4 (in QEMU). A specially crafted HTTP request can lead to remote code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS v3 9.9 CRITICAL
CVSS v2.0 6.5 MEDIUM

9.9^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.1 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.5^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:P/A:P

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1335	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:o:lantronix:premierwave_2050_firmware:8.9.0.0:r4:*:*:*:*:*:*

cpe:2.3:h:lantronix:premierwave_2050:-:*:*:*:*:*:*:*

History

03 Jan 2022, 21:56

Type	Values Removed	Values Added
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.5 v3 : 9.9
First Time		Lantronix Lantronix premierwave 2050 Firmware Lantronix premierwave 2050
CPE		cpe:2.3:h:lantronix:premierwave_2050:-:::::::* cpe:2.3:o:lantronix:premierwave_2050_firmware:8.9.0.0:r4::::::
CWE		CWE-787
References	~~(MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1335 -~~	(MISC) https://talosintelligence.com/vulnerability_reports/TALOS-2021-1335 - Exploit, Third Party Advisory

22 Dec 2021, 20:11

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-12-22 19:15

Updated : 2023-12-10 14:09

NVD link : CVE-2021-21892

Mitre link : CVE-2021-21892

CVE.ORG link : CVE-2021-21892

JSON object : View

Products Affected

lantronix

premierwave_2050
premierwave_2050_firmware

CWE

CWE-787

Out-of-bounds Write

CWE-121

Stack-based Buffer Overflow

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