CVE-2024-12839 (CVSS 8.8)

Description

The login mechanism via device authentication of CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability. If a user visits a forged website, the agent program deployed on their device will send an authentication signature to the website. An unauthenticated remote attacker who obtains this signature can use it to log into the system with any device.

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CVSS v3.1 Score

8.8

HIGH

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

Weakness Type (CWE)

CWE-294 CWE-294

References

Other References

https://www.twcert.org.tw/en/cp-139-8335-e4a3f-2.html https://www.twcert.org.tw/tw/cp-132-8334-8b836-1.html

Frequently Asked Questions

What is CVE-2024-12839? +

The login mechanism via device authentication of CGFIDO from Changing Information Technology has an Authentication Bypass vulnerability. If a user visits a forged website, the agent program deployed on their device will send an authentication signature to the website. An unauthenticated remote attacker who obtains this signature can use it to log into the system with any device. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2024-12839? +

CVE-2024-12839 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2024-12839? +

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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