CVE-2021-3152

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Home Assistant before 2021.1.3 does not have a protection layer that can help to prevent directory-traversal attacks against custom integrations. NOTE: the vendor's perspective is that the vulnerability itself is in custom integrations written by third parties, not in Home Assistant; however, Home Assistant does have a security update that is worthwhile in addressing this situation

** EN DISPUTADA ** Home Assistant versiones anteriores a 2021.1.3, no presenta una capa de protección que pueda ayudar a impedir ataques de saltos de directorio contra integraciones personalizadas. NOTA: la perspectiva del proveedor es que la vulnerabilidad en sí está en integraciones personalizadas escritas por terceros, no en Home Assistant; sin embargo, Home Assistant presenta una actualización de seguridad que vale la pena para abordar esta situación

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

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

2021-01-15 CVE Reserved
2021-01-21 CVE Published
2023-10-07 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.home-assistant.io/blog/2021/01/14/security-bulletin	2024-05-17
https://www.home-assistant.io/blog/2021/01/22/security-disclosure	2024-05-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Home-assistant Search vendor "Home-assistant"		Home-assistant Search vendor "Home-assistant" for product "Home-assistant"				< 2021.1.3 Search vendor "Home-assistant" for product "Home-assistant" and version " < 2021.1.3"		-		Affected