CVE-2021-20090
Arcadyan Buffalo Firmware Path Traversal Vulnerability
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
-
*SSVC
Descriptions
A path traversal vulnerability in the web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 could allow unauthenticated remote attackers to bypass authentication.
Una vulnerabilidad de salto de ruta en las interfaces web de Buffalo WSR-2533DHPL2 versión de firmware anterior a 1.02 e incluyéndola y WSR-2533DHP3 versión de firmware anterior a 1.24 e incluyéndola, podría permitir a atacantes remotos no autenticados omitir la autenticación
Arcadyan Buffalo firmware contains a path traversal vulnerability that could allow unauthenticated, remote attackers to bypass authentication and access sensitive information. This vulnerability affects multiple routers across several different vendors.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-12-17 CVE Reserved
- 2021-04-29 CVE Published
- 2021-11-03 Exploited in Wild
- 2021-11-17 KEV Due Date
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- 2024-11-06 EPSS Updated
CWE
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
References (3)
| URL | Tag | Source |
|---|---|---|
| https://www.kb.cert.org/vuls/id/914124 | Third Party Advisory |
|
| https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation |
| URL | Date | SRC |
|---|---|---|
| https://www.tenable.com/security/research/tra-2021-13 | 2024-08-03 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Buffalo Search vendor "Buffalo" | Wsr-2533dhpl2-bk Firmware Search vendor "Buffalo" for product "Wsr-2533dhpl2-bk Firmware" | <= 1.02 Search vendor "Buffalo" for product "Wsr-2533dhpl2-bk Firmware" and version " <= 1.02" | - |
Affected
| in | Buffalo Search vendor "Buffalo" | Wsr-2533dhpl2-bk Search vendor "Buffalo" for product "Wsr-2533dhpl2-bk" | - | - |
Safe
|
| Buffalo Search vendor "Buffalo" | Wsr-2533dhp3-bk Firmware Search vendor "Buffalo" for product "Wsr-2533dhp3-bk Firmware" | <= 1.24 Search vendor "Buffalo" for product "Wsr-2533dhp3-bk Firmware" and version " <= 1.24" | - |
Affected
| in | Buffalo Search vendor "Buffalo" | Wsr-2533dhp3-bk Search vendor "Buffalo" for product "Wsr-2533dhp3-bk" | - | - |
Safe
|