CVE-2021-43998

vault: incorrect policy enforcement

Severity Score

6.5

*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 0.11.0 up to 1.7.5 and 1.8.4 templated ACL policies would always match the first-created entity alias if multiple entity aliases exist for a specified entity and mount combination, potentially resulting in incorrect policy enforcement. Fixed in Vault and Vault Enterprise 1.7.6, 1.8.5, and 1.9.0.

Las políticas ACL templadas de HashiCorp Vault y Vault Enterprise 0.11.0 versiones hasta 1.7.5 y 1.8.4 siempre coincidían con el primer alias de entidad creado si presentaban varios alias de entidad para una combinación especificada de entidad y montaje, resultando potencialmente en una aplicación incorrecta de la política. Corregido en Vault y Vault Enterprise versiones 1.7.6, 1.8.5 y 1.9.0

A flaw was found in HashiCorp Vault. In affected versions of HashiCorp Vault and Vault Enterprise, templated ACL policies would always match the first-created entity alias if multiple entity aliases exist for a specified entity and mount combination, potentially resulting in incorrect policy enforcement.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

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
2021-11-30 CVE Published
2023-06-23 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (4)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://discuss.hashicorp.com/t/hcsec-2021-30-vaults-templated-acl-policies-matched-first-created-alias-per-entity-and-auth-backend/32132	2022-09-08
https://security.gentoo.org/glsa/202207-01	2022-09-08
https://access.redhat.com/security/cve/CVE-2021-43998	2023-06-21
https://bugzilla.redhat.com/show_bug.cgi?id=2028193	2023-06-21

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"				>= 0.11.0 <= 1.7.5 Search vendor "Hashicorp" for product "Vault" and version " >= 0.11.0 <= 1.7.5"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				>= 0.11.0 <= 1.7.5 Search vendor "Hashicorp" for product "Vault" and version " >= 0.11.0 <= 1.7.5"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				1.8.4 Search vendor "Hashicorp" for product "Vault" and version "1.8.4"		-		Affected
Hashicorp Search vendor "Hashicorp"		Vault Search vendor "Hashicorp" for product "Vault"				1.8.4 Search vendor "Hashicorp" for product "Vault" and version "1.8.4"		enterprise		Affected