CVE-2021-20149

CVSS V2 High 7.5 CVSS V3 Critical 9.8

Description

Trendnet AC2600 TEW-827DRU version 2.08B01 does not have sufficient access controls for the WAN interface. The default iptables ruleset for governing access to services on the device only apply to IPv4. All services running on the devices are accessible via the WAN interface via IPv6 by default.

Overview

CVE ID
CVE-2021-20149

Assigner
vulnreport@tenable.com

Vulnerability Status
Analyzed

Published Version
2021-12-30T22:15:08

Last Modified Date
2022-01-07T16:10:25

Weakness Enumerations

CWE	URL
CWE-863	http://cwe.mitre.org/data/definitions/863.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:trendnet:tew-827dru_firmware:2.08b01:::::::*	1	OR
cpe:2.3:h:trendnet:tew-827dru:2.0:::::::*	0	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
NONE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
7.5

Severity
HIGH

Exploitability Score
10

Impact Score
6.4

CVSS Version 3

Version
3.1

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

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
9.8

Base Severity
CRITICAL

Exploitability Score
3.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.tenable.com/security/research/tra-2021-54	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-20149
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20149

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:38:05				Added to TrackCVE
2022-12-06 05:20:57	2021-12-30T22:15Z	2021-12-30T22:15:08	CVE Published Date	updated
2022-12-06 05:20:57		2022-01-07T16:10:25	CVE Modified Date	updated
2022-12-06 05:20:57		Analyzed	Vulnerability Status	updated