CVE-2021-22276

free@home System Access Point FW integrity check can be bypassed.

Severity Score

5.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The vulnerability allows a successful attacker to bypass the integrity check of FW uploaded to the free@home System Access Point.

La vulnerabilidad permite a un atacante con éxito omitir la comprobación de integridad del FW cargado al Punto de Acceso del Sistema free@home

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

High

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-01-05 CVE Reserved
2021-09-23 CVE Published
2024-03-15 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-354: Improper Validation of Integrity Check Value

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://search.abb.com/library/Download.aspx?DocumentID=9AKK107992A6475&LanguageCode=en&DocumentPartId=&Action=Launch	2021-10-06

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Abb Search vendor "Abb"	System Access Point 2.0 Firmware Search vendor "Abb" for product "System Access Point 2.0 Firmware"	< 2.6.4 Search vendor "Abb" for product "System Access Point 2.0 Firmware" and version " < 2.6.4"	-	Affected	in	Abb Search vendor "Abb"	System Access Point 2.0 Search vendor "Abb" for product "System Access Point 2.0"	-	-	Safe
Abb Search vendor "Abb"	System Access Point 127v Firmware Search vendor "Abb" for product "System Access Point 127v Firmware"	< 2.6.4 Search vendor "Abb" for product "System Access Point 127v Firmware" and version " < 2.6.4"	-	Affected	in	Abb Search vendor "Abb"	System Access Point 127v Search vendor "Abb" for product "System Access Point 127v"	-	-	Safe
Abb Search vendor "Abb"	Wl-system Access Point 127v Firmware Search vendor "Abb" for product "Wl-system Access Point 127v Firmware"	< 2.6.4 Search vendor "Abb" for product "Wl-system Access Point 127v Firmware" and version " < 2.6.4"	-	Affected	in	Abb Search vendor "Abb"	Wl-system Access Point 127v Search vendor "Abb" for product "Wl-system Access Point 127v"	-	-	Safe
Abb Search vendor "Abb"	Wl-system Access Point Firmware Search vendor "Abb" for product "Wl-system Access Point Firmware"	< 2.6.4 Search vendor "Abb" for product "Wl-system Access Point Firmware" and version " < 2.6.4"	-	Affected	in	Abb Search vendor "Abb"	Wl-system Access Point Search vendor "Abb" for product "Wl-system Access Point"	-	-	Safe
Abb Search vendor "Abb"	Wl-system Access Point 2.0 Firmware Search vendor "Abb" for product "Wl-system Access Point 2.0 Firmware"	< 2.6.4 Search vendor "Abb" for product "Wl-system Access Point 2.0 Firmware" and version " < 2.6.4"	-	Affected	in	Abb Search vendor "Abb"	Wl-system Access Point 2.0 Search vendor "Abb" for product "Wl-system Access Point 2.0"	-	-	Safe