// For flags

CVE-2021-29442

Authentication bypass

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

2
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users. These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql)

Nacos es una plataforma diseñada para el descubrimiento y la configuración dinámica de servicios y la administración de servicios. En Nacos versiones anteriores a 1.4.1, la función ConfigOpsController permite al usuario llevar a cabo operaciones de administración como consultar la base de datos o incluso borrarla. Si bien el endpoint /data/remove está protegido apropiadamente con la anotación @Secured, el endpoint /derby no está protegido y los usuarios no autenticados pueden acceder a él abiertamente. Estos endpoints solo son válidos cuando se usa almacenamiento integrado (derby DB), por lo que este problema no debería afectar las instalaciones que usan almacenamiento externo (por ejemplo, mysql)

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-30 CVE Reserved
  • 2021-04-27 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2024-09-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-306: Missing Authentication for Critical Function
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Alibaba
Search vendor "Alibaba"
Nacos
Search vendor "Alibaba" for product "Nacos"
< 1.4.1
Search vendor "Alibaba" for product "Nacos" and version " < 1.4.1"
-
Affected