CVE-2022-23822
Last modified
CVE-2022-23822 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. 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. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xilinx | Zynq-7000s Firmware | < 2022.1 |
| Xilinx | Zynq-7000 Firmware | < 2022.1 |
References
- https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsblThird Party Advisory
- https://support.xilinx.com/s/article/76974Vendor Advisory
- https://github.com/Xilinx/embeddedsw/tree/master/lib/sw_apps/zynq_fsblThird Party Advisory
- https://support.xilinx.com/s/article/76974Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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