CVE-2021-41805

HashiCorp Consul Enterprise Privilege Escalation / Remote Code Execution

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

HashiCorp Consul Enterprise before 1.8.17, 1.9.x before 1.9.11, and 1.10.x before 1.10.4 has Incorrect Access Control. An ACL token (with the default operator:write permissions) in one namespace can be used for unintended privilege escalation in a different namespace.

HashiCorp Consul Enterprise versiones anteriores a 1.8.17, 1.9.x anteriores a 1.9.11 y 1.10.x anteriores a 1.10.4, presenta un Control de Acceso Incorrecto. Un token ACL (con el operador predeterminado: permisos de escritura) en un espacio de nombres puede ser usado para una escalada de privilegios no intencionada en un espacio de nombres diferente

Hashicorp Consul Enterprise has an issue where an ACL token (with the default operator:write permissions) in one namespace can be used for unintended privilege escalation in a different namespace. This can be abused to gain remote code execution with escalated privileges.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-09-29 CVE Reserved
2021-12-12 CVE Published
2022-12-07 First Exploit
2024-08-04 CVE Updated
2025-04-10 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-863: Incorrect Authorization

CAPEC

References (6)

URL	Tag	Source
https://security.netapp.com/advisory/ntap-20211229-0007	Third Party Advisory

URL	Date	SRC
https://packetstorm.news/files/id/183438	2025-01-09
https://github.com/blackm4c/CVE-2021-41805	2022-12-07
https://github.com/acfirthh/CVE-2021-41805	2025-01-07

URL	Date	SRC

URL	Date	SRC
https://discuss.hashicorp.com/t/hcsec-2021-29-consul-enterprise-namespace-default-acls-allow-privilege-escalation/31871	2022-03-31
https://www.hashicorp.com/blog/category/consul	2022-03-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Hashicorp Search vendor "Hashicorp"		Consul Search vendor "Hashicorp" for product "Consul"				>= 1.7.0 < 1.8.17 Search vendor "Hashicorp" for product "Consul" and version " >= 1.7.0 < 1.8.17"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Consul Search vendor "Hashicorp" for product "Consul"				>= 1.9.0 < 1.9.11 Search vendor "Hashicorp" for product "Consul" and version " >= 1.9.0 < 1.9.11"		enterprise		Affected
Hashicorp Search vendor "Hashicorp"		Consul Search vendor "Hashicorp" for product "Consul"				>= 1.10.0 < 1.10.4 Search vendor "Hashicorp" for product "Consul" and version " >= 1.10.0 < 1.10.4"		enterprise		Affected