CVE-2023-37008: open5gs — Exploit

Description

Open5GS MME versions <= 2.6.4 contain a buffer overflow in the ASN.1 deserialization function of the S1AP handler. This buffer overflow causes type confusion in decoded fields, leading to invalid parsing and freeing of memory. An attacker may use this to crash an MME or potentially execute code in certain circumstances.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-617 CWE-617

Affected Products

Vendor	Product	Versions
open5gs	open5gs	< 2.6.4

References

Exploits

https://cellularsecurity.org/ransacked

Frequently Asked Questions

What is CVE-2023-37008? +

Open5GS MME versions <= 2.6.4 contain a buffer overflow in the ASN.1 deserialization function of the S1AP handler. This buffer overflow causes type confusion in decoded fields, leading to invalid parsing and freeing of memory. An attacker may use this to crash an MME or potentially execute code in certain circumstances. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2023-37008? +

CVE-2023-37008 has a CVSS v3.1 score of 5.3 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-2023-37008? +

CVE-2023-37008 affects products from open5gs, specifically: open5gs. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-37008? +

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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