CVE-2021-27400

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

HashiCorp Vault and Vault Enterprise Cassandra integrations (storage backend and database secrets engine plugin) did not validate TLS certificates when connecting to Cassandra clusters. Fixed in 1.6.4 and 1.7.1

Las integraciones de HashiCorp Vault y Vault Enterprise Cassandra (backend de almacenamiento y plugin del motor de secretos de la base de datos) no comprobaban los certificados TLS al conectarse a los clústeres de Cassandra. Corregido en 1.6.4 y 1.7.1

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-02-19 CVE Reserved
2021-04-22 CVE Published
2024-01-06 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-295: Improper Certificate Validation

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.hashicorp.com/t/hcsec-2021-10-vault-s-cassandra-integrations-did-not-validate-tls-certificates/23463	2021-04-27

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				< 1.6.4 Search vendor "Hashicorp" for product "Vault" and version " < 1.6.4"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				< 1.6.4 Search vendor "Hashicorp" for product "Vault" and version " < 1.6.4"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 1.7.0 < 1.7.1 Search vendor "Hashicorp" for product "Vault" and version " >= 1.7.0 < 1.7.1"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 1.7.0 < 1.7.1 Search vendor "Hashicorp" for product "Vault" and version " >= 1.7.0 < 1.7.1"		enterprise		Affected