Vulnerability Monitor

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CVE-2022-23822

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.

Published

2022-04-27T17:15:07.517

Last Modified

2024-11-21T06:49:19.200

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.8 (MEDIUM)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.4

Impact Score

6.4

Weaknesses

Type: Secondary
CWE-863
Type: Primary
CWE-863

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	xilinx	zynq-7000s_firmware	< 2022.1	Yes
Hardware	xilinx	zynq-7000s	-	No
Operating System	xilinx	zynq-7000_firmware	< 2022.1	Yes
Hardware	xilinx	zynq-7000	-	No

References

https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsbl Third Party Advisory ([email protected])
https://support.xilinx.com/s/article/76974 Vendor Advisory ([email protected])
https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsbl Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.xilinx.com/s/article/76974 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)