CVE-2021-3512
Buffalo Broadband Router Remote Command Execution
Description
Improper access control vulnerability in Buffalo broadband routers (BHR-4GRV firmware Ver.1.99 and prior, DWR-HP-G300NH firmware Ver.1.83 and prior, HW-450HP-ZWE firmware Ver.1.99 and prior, WHR-300HP firmware Ver.1.99 and prior, WHR-300 firmware Ver.1.99 and prior, WHR-G301N firmware Ver.1.86 and prior, WHR-HP-G300N firmware Ver.1.99 and prior, WHR-HP-GN firmware Ver.1.86 and prior, WPL-05G300 firmware Ver.1.87 and prior, WZR-450HP-CWT firmware Ver.1.99 and prior, WZR-450HP-UB firmware Ver.1.99 and prior, WZR-HP-AG300H firmware Ver.1.75 and prior, WZR-HP-G300NH firmware Ver.1.83 and prior, WZR-HP-G301NH firmware Ver.1.83 and prior, WZR-HP-G302H firmware Ver.1.85 and prior, WZR-HP-G450H firmware Ver.1.89 and prior, WZR-300HP firmware Ver.1.99 and prior, WZR-450HP firmware Ver.1.99 and prior, WZR-600DHP firmware Ver.1.99 and prior, WZR-D1100H firmware Ver.1.99 and prior, FS-HP-G300N firmware Ver.3.32 and prior, FS-600DHP firmware Ver.3.38 and prior, FS-R600DHP firmware Ver.3.39 and prior, and FS-G300N firmware Ver.3.13 and prior) allows remote unauthenticated attackers to bypass access restriction and to start telnet service and execute arbitrary OS commands with root privileges via unspecified vectors.
INFO
Published Date :
April 28, 2021, 1:15 a.m.
Last Modified :
July 12, 2022, 5:42 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-3512
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-3512.
| URL | Resource |
|---|---|
| https://jvn.jp/en/vu/JVNVU99235714/index.html | Third Party Advisory |
| https://www.buffalo.jp/news/detail/20210427-01.html | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3512 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3512 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CWE Remap by [email protected]
Jul. 12, 2022
Action Type Old Value New Value Changed CWE CWE-863 NVD-CWE-Other -
Initial Analysis by [email protected]
May. 12, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://jvn.jp/en/vu/JVNVU99235714/index.html No Types Assigned https://jvn.jp/en/vu/JVNVU99235714/index.html Third Party Advisory Changed Reference Type https://www.buffalo.jp/news/detail/20210427-01.html No Types Assigned https://www.buffalo.jp/news/detail/20210427-01.html Vendor Advisory Added CWE NIST CWE-863 Added CPE Configuration AND OR *cpe:2.3:o:buffalo:bhr-4grv_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:bhr-4grv:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:dwr-hp-g300nh_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.84 OR cpe:2.3:h:buffalo:dwr-hp-g300nh:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:hw-450hp-zwe_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:hw-450hp-zwe:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:whr-300hp_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:whr-300hp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:whr-300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:whr-300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:whr-g301n_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.87 OR cpe:2.3:h:buffalo:whr-g301n:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:whr-hp-g300n_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:whr-hp-g300n:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:whr-hp-gn_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.87 OR cpe:2.3:h:buffalo:whr-hp-gn:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wpl-05g300_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.88 OR cpe:2.3:h:buffalo:wpl-05g300:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-450hp-cwt_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:wzr-450hp-cwt:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-450hp-ub_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:wzr-450hp-ub:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-hp-ag300h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.76 OR cpe:2.3:h:buffalo:wzr-hp-ag300h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-hp-g300nh_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.84 OR cpe:2.3:h:buffalo:wzr-hp-g300nh:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-hp-g301nh_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.84 OR cpe:2.3:h:buffalo:wzr-hp-g301nh:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-hp-g302h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.86 OR cpe:2.3:h:buffalo:wzr-hp-g302h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-hp-g450h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 1.90 OR cpe:2.3:h:buffalo:wzr-hp-g450h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-300hp_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:wzr-300hp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-450hp_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:wzr-450hp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-600dhp_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:wzr-600dhp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:wzr-d1100h_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 2.00 OR cpe:2.3:h:buffalo:wzr-d1100h:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:fs-hp-g300n_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.33 OR cpe:2.3:h:buffalo:fs-hp-g300n:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:fs-600dhp_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:buffalo:fs-600dhp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:fs-r600dhp_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.40 OR cpe:2.3:h:buffalo:fs-r600dhp:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:buffalo:fs-g300n_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 3.14 OR cpe:2.3:h:buffalo:fs-g300n:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3512 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-3512
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.01%
score
0.40574
percentile