CVE-2022-34840

Published: Dec 7, 2022Modified: Apr 23, 2025

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: NVD

Description

Use of hard-coded credentials vulnerability in multiple Buffalo network devices allows a network-adjacent attacker to alter?configuration settings of the device. The affected products/versions are as follows: WZR-300HP firmware Ver. 2.00 and earlier, WZR-450HP firmware Ver. 2.00 and earlier, WZR-600DHP firmware Ver. 2.00 and earlier, WZR-900DHP firmware Ver. 1.15 and earlier, HW-450HP-ZWE firmware Ver. 2.00 and earlier, WZR-450HP-CWT firmware Ver. 2.00 and earlier, WZR-450HP-UB firmware Ver. 2.00 and earlier, WZR-600DHP2 firmware Ver. 1.15 and earlier, and WZR-D1100H firmware Ver. 2.00 and earlier.

Affected (9)

Products: Buffalo: Wzr 300hp Firmware, Wzr 450hp Firmware, Wzr 600dhp Firmware, Wzr 900dhp Firmware, Hw 450hp Zwe Firmware, Wzr 450hp Cwt Firmware, Wzr 450hp Ub Firmware, Wzr 600dhp2 Firmware, Wzr D1100h Firmware

9 products

Hw 450hp Zwe Firmware

Wzr 450hp Cwt Firmware

Wzr 450hp Ub Firmware

Wzr 600dhp2 Firmware

Wzr D1100h Firmware

Configuration A

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 300hp Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Wzr 300hp	All versions

Configuration B

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 450hp Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Wzr 450hp	All versions

Configuration C

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 600dhp Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Wzr 600dhp	All versions

Configuration D

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 900dhp Firmware	Up to 1.15

Running on/with	Platform Versions
Buffalo Wzr 900dhp	All versions

Configuration E

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Hw 450hp Zwe Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Hw 450hp Zwe	All versions

Configuration F

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 450hp Cwt Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Wzr 450hp Cwt	All versions

Configuration G

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 450hp Ub Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Wzr 450hp Ub	All versions

Configuration H

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr 600dhp2 Firmware	Up to 1.15

Running on/with	Platform Versions
Buffalo Wzr 600dhp2	All versions

Configuration I

1 vulnerable · 1 platform

Vulnerable Software	Affected Versions
Buffalo Wzr D1100h Firmware	Up to 2.00

Running on/with	Platform Versions
Buffalo Wzr D1100h	All versions

Related CWEs

CWE-798

Use of Hard-coded Credentials

The product contains hard-coded credentials, such as a password or cryptographic key.

References (4)

https://jvn.jp/en/vu/JVNVU92805279/index.html

Source: vultures@jpcert.or.jp

Third Party Advisory

https://www.buffalo.jp/news/detail/20221003-01.html

Source: vultures@jpcert.or.jp

PatchVendor Advisory

https://jvn.jp/en/vu/JVNVU92805279/index.html

Source: af854a3a-2127-422b-91ae-364da2661108

Third Party Advisory

https://www.buffalo.jp/news/detail/20221003-01.html

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

Timeline

No history available yet.