CVE-2021-40389

CVSS V2 High 7.2 CVSS V3 High 8.8

Description

A privilege escalation vulnerability exists in the installation of Advantech DeviceOn/iEdge Server 1.0.2. A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

Overview

CVE ID
CVE-2021-40389

Assigner
talos-cna@cisco.com

Vulnerability Status
Analyzed

Published Version
2022-01-28T20:15:11

Last Modified Date
2022-05-31T18:25:17

Weakness Enumerations

CWE	URL
CWE-276	http://cwe.mitre.org/data/definitions/276.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:advantech:deviceon\/iedge:1.0.2:::::::*	1	OR

CVSS Version 2

Version
2.0

Vector String
AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector
LOCAL

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
COMPLETE

Integrity Impact
COMPLETE

Availability Impact
COMPLETE

Base Score
7.2

Severity
HIGH

Exploitability Score
3.9

Impact Score
10

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector
LOCAL

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
CHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2

Impact Score
6

References

Reference URL	Reference Tags
https://talosintelligence.com/vulnerability_reports/TALOS-2021-1400	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-40389
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-40389

History

Created	Old Value	New Value	Data Type	Notes
2022-04-20 17:01:45				Added to TrackCVE
2022-12-06 08:00:54	2022-01-28T20:15Z	2022-01-28T20:15:11	CVE Published Date	updated
2022-12-06 08:00:54		2022-05-31T18:25:17	CVE Modified Date	updated
2022-12-06 08:00:54		Analyzed	Vulnerability Status	updated