// For flags

CVE-2021-43963

 

Severity Score

8.1
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

An issue was discovered in Couchbase Sync Gateway 2.7.0 through 2.8.2. The bucket credentials used to read and write data in Couchbase Server were insecurely being stored in the metadata within sync documents written to the bucket. Users with read access could use these credentials to obtain write access. (This issue does not affect clusters where Sync Gateway is authenticated with X.509 client certificates. This issue also does not affect clusters where shared bucket access is not enabled on Sync Gateway.)

Se ha detectado un problema en Couchbase Sync Gateway versiones 2.7.0 hasta 2.8.2. Las credenciales del cubo usadas para leer y escribir datos en Couchbase Server se almacenaban de forma no segura en los metadatos de los documentos de sincronización escritos en el cubo. Los usuarios con acceso de lectura podían usar estas credenciales para obtener acceso de escritura. (Este problema no afecta a los clusters en los que Sync Gateway se autentica con certificados de cliente X.509. Este problema tampoco afecta a los clústeres en los que el acceso al bucket compartido no está habilitado en Sync Gateway)

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-11-17 CVE Reserved
  • 2021-12-07 CVE Published
  • 2023-06-30 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://www.couchbase.com/alerts 2021-12-09
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Couchbase
Search vendor "Couchbase"
 Sync Gateway
Search vendor "Couchbase" for product "Sync Gateway"
 >= 2.7.0 < 2.8.3
Search vendor "Couchbase" for product "Sync Gateway" and version " >= 2.7.0 < 2.8.3"
-
Affected