CVE-2018-9149

CVSS V2 High 7.2 CVSS V3 Medium 6.8

Description

The Zyxel Multy X (AC3000 Tri-Band WiFi System) device doesn't use a suitable mechanism to protect the UART. After an attacker dismantles the device and uses a USB-to-UART cable to connect the device, he can use the 1234 password for the root account to login to the system. Furthermore, an attacker can start the device's TELNET service as a backdoor.

Overview

CVE ID
CVE-2018-9149

Assigner
cve@mitre.org

Vulnerability Status
Analyzed

Published Version
2018-04-01T18:29:00

Last Modified Date
2019-03-14T14:01:26

Weakness Enumerations

CWE	URL
CWE-798	http://cwe.mitre.org/data/definitions/798.html

CPE Configuration (Product)

CPE	Vulnerable	Operator
		AND
cpe:2.3:o:zyxel:ac3000_firmware:-:::::::*	1	OR
cpe:2.3:h:zyxel:ac3000:-:::::::*	0	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
3.0

Vector String
CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
PHYSICAL

Attack Compatibility
LOW

Privileges Required
NONE

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
6.8

Base Severity
MEDIUM

Exploitability Score
0.9

Impact Score
5.9

References

Reference URL	Reference Tags
https://www.slideshare.net/secret/qrHwDOJ71eLg7f	Exploit Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2018-9149
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9149

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 17:47:03				Added to TrackCVE
2022-12-03 04:06:24	2018-04-01T18:29Z	2018-04-01T18:29:00	CVE Published Date	updated
2022-12-03 04:06:24		2019-03-14T14:01:26	CVE Modified Date	updated
2022-12-03 04:06:24		Analyzed	Vulnerability Status	updated