CVE-2024-4640: oncell Buffer Overflow — Fix

Description

OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to missing bounds checking on buffer operations. An attacker could write past the boundaries of allocated buffer regions in memory, causing a program crash.

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CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-120 CWE-120

Affected Products

Vendor	Product	Versions
moxa	oncell_g3470a-lte-us-t_firmware	< 1.7.7
moxa	oncell_g3470a-lte-us-t	All
moxa	oncell_g3470a-lte-eu_firmware	< 1.7.7
moxa	oncell_g3470a-lte-eu	All
moxa	oncell_g3470a-lte-eu-t_firmware	< 1.7.7
moxa	oncell_g3470a-lte-eu-t	All
moxa	oncell_g3470a-lte-us_firmware	< 1.7.7
moxa	oncell_g3470a-lte-us	All

References

Advisories & Patches

https://www.moxa.com/en/support/product-support/security-advisory/mpsa-242550-oncell-g3470a-lte-series-multiple-web-application-vulnerabilities https://www.moxa.com/en/support/product-support/security-advisory/mpsa-242550-oncell-g3470a-lte-series-multiple-web-application-vulnerabilities

Frequently Asked Questions

What is CVE-2024-4640? +

OnCell G3470A-LTE Series firmware versions v1.7.7 and prior have been identified as vulnerable due to missing bounds checking on buffer operations. An attacker could write past the boundaries of allocated buffer regions in memory, causing a program crash. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2024-4640? +

CVE-2024-4640 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-4640? +

CVE-2024-4640 affects products from moxa, specifically: oncell_g3470a-lte-eu, oncell_g3470a-lte-eu-t, oncell_g3470a-lte-eu-t_firmware, oncell_g3470a-lte-eu_firmware, oncell_g3470a-lte-us, oncell_g3470a-lte-us-t, oncell_g3470a-lte-us-t_firmware, oncell_g3470a-lte-us_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-4640? +

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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