CVE-2023-50096: x-cube-safea1 Buffer Overflow — Exploit

Description

STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
st	x-cube-safea1	All

References

Exploits

https://github.com/elttam/publications/blob/master/writeups/CVE-2023-50096.md https://github.com/elttam/publications/blob/master/writeups/CVE-2023-50096.md

Frequently Asked Questions

What is CVE-2023-50096? +

STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-50096? +

CVE-2023-50096 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-50096? +

CVE-2023-50096 affects products from st, specifically: x-cube-safea1. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-50096? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2023-50096