CVE-2022-23822

Severity Score

6.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

In this physical attack, an attacker may potentially exploit the Zynq-7000 SoC First Stage Boot Loader (FSBL) by bypassing authentication and loading a malicious image onto the device. This in turn may further allow the attacker to perform additional attacks such as such as using the device as a decryption oracle. An anticipated mitigation via a 2022.1 patch will resolve the issue.

En este ataque físico, un atacante puede explotar el cargador de arranque de primera etapa (FSBL) del SoC Zynq-7000 evitando la autenticación y cargando una imagen maliciosa en el dispositivo. Esto, a su vez, puede permitir al atacante llevar a cabo otros ataques, como por ejemplo usar el dispositivo como oráculo de descifrado. Una mitigación anticipada por medio de un parche 2022.1 resolverá el problema

*Credits: N/A

Attack Vector

Physical

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-01-21 CVE Reserved
2022-04-27 CVE Published
2023-11-18 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-863: Incorrect Authorization

CAPEC

References (2)

URL	Tag	Source
https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsbl	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://support.xilinx.com/s/article/76974	2022-05-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Xilinx Search vendor "Xilinx"	Zynq-7000s Firmware Search vendor "Xilinx" for product "Zynq-7000s Firmware"	< 2022.1 Search vendor "Xilinx" for product "Zynq-7000s Firmware" and version " < 2022.1"	-	Affected	in	Xilinx Search vendor "Xilinx"	Zynq-7000s Search vendor "Xilinx" for product "Zynq-7000s"	-	-	Safe
Xilinx Search vendor "Xilinx"	Zynq-7000 Firmware Search vendor "Xilinx" for product "Zynq-7000 Firmware"	< 2022.1 Search vendor "Xilinx" for product "Zynq-7000 Firmware" and version " < 2022.1"	-	Affected	in	Xilinx Search vendor "Xilinx"	Zynq-7000 Search vendor "Xilinx" for product "Zynq-7000"	-	-	Safe