CVE-2021-28500
An issue has recently been discovered in Arista EOS where the incorrect use of EOS's AAA API’s by the OpenConfig and TerminAttr agents could result in unrestricted access to the device for local users with nopassword configuration.
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An issue has recently been discovered in Arista EOS where the incorrect use of EOS's AAA API’s by the OpenConfig and TerminAttr agents could result in unrestricted access to the device for local users with nopassword configuration.
Se ha detectado recientemente un problema en Arista EOS donde el uso incorrecto de las API AAA de EOS por parte de los agentes OpenConfig y TerminAttr podría resultar en un acceso no restringido al dispositivo para usuarios locales con una configuración sin contraseña
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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
- 2021-03-16 CVE Reserved
- 2022-01-14 CVE Published
- 2023-03-08 EPSS Updated
- 2024-09-16 CVE Updated
- 2024-09-16 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-285: Improper Authorization
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisories/13449-security-advisory-0071 | 2024-09-16 |
| 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 |
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | < 4.20 Search vendor "Arista" for product "Eos" and version " < 4.20" | - |
Affected
| ||||||
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.21.0 <= 4.21.14m Search vendor "Arista" for product "Eos" and version " >= 4.21.0 <= 4.21.14m" | - |
Affected
| ||||||
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.22.0 <= 4.22.11m Search vendor "Arista" for product "Eos" and version " >= 4.22.0 <= 4.22.11m" | - |
Affected
| ||||||
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.23.0 <= 4.23.8m Search vendor "Arista" for product "Eos" and version " >= 4.23.0 <= 4.23.8m" | - |
Affected
| ||||||
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.24.6.0 <= 4.24.6m Search vendor "Arista" for product "Eos" and version " >= 4.24.6.0 <= 4.24.6m" | - |
Affected
| ||||||
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.25.0 <= 4.25.4m Search vendor "Arista" for product "Eos" and version " >= 4.25.0 <= 4.25.4m" | - |
Affected
| ||||||
| Arista Search vendor "Arista" | Eos Search vendor "Arista" for product "Eos" | >= 4.26.0 <= 4.26.1f Search vendor "Arista" for product "Eos" and version " >= 4.26.0 <= 4.26.1f" | - |
Affected
| ||||||