CVE-2024-50596: x-cube-azrt-h7rs Integer Underflow

Description

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability affects the NetX Duo Web Component HTTP Server implementation which can be found in x-cube-azrtos-f7\Middlewares\ST\netxduo\addons\web\nx_web_http_server.c

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CVSS v3.1 Score

4.3

MEDIUM

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

Weakness Type (CWE)

CWE-191 CWE-191

Affected Products

Vendor	Product	Versions
st	x-cube-azrt-h7rs	All
st	x-cube-azrtos-f4	All
st	x-cube-azrtos-f7	All
st	x-cube-azrtos-g0	All
st	x-cube-azrtos-g4	All
st	x-cube-azrtos-h7	All
st	x-cube-azrtos-l4	All
st	x-cube-azrtos-l5	All
st	x-cube-azrtos-wb	All
st	x-cube-azrtos-wl	All

References

Exploits

https://talosintelligence.com/vulnerability_reports/TALOS-2024-2103

Other References

https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-2103

Frequently Asked Questions

What is CVE-2024-50596? +

An integer underflow vulnerability exists in the HTTP server PUT request functionality of STMicroelectronics X-CUBE-AZRTOS-WL 2.0.0. A specially crafted network packet can lead to denial of service. An attacker can send a malicious packet to trigger this vulnerability.This vulnerability affects the NetX Duo Web Component HTTP Server implementation which can be found in x-cube-azrtos-f7\Middlewares\ST\netxduo\addons\web\nx_web_http_server.c It has a CVSS v3.1 base score of 4.3 (MEDIUM).

How severe is CVE-2024-50596? +

CVE-2024-50596 has a CVSS v3.1 score of 4.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-50596? +

CVE-2024-50596 affects products from st, specifically: x-cube-azrt-h7rs, x-cube-azrtos-f4, x-cube-azrtos-f7, x-cube-azrtos-g0, x-cube-azrtos-g4, x-cube-azrtos-h7, x-cube-azrtos-l4, x-cube-azrtos-l5, x-cube-azrtos-wb, x-cube-azrtos-wl. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-50596? +

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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