CVE-2024-29974: nas326 File Upload RCE

Description

** UNSUPPORTED WHEN ASSIGNED ** The remote code execution vulnerability in the CGI program “file_upload-cgi” in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute arbitrary code by uploading a crafted configuration file to a vulnerable device.

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CVSS v3.1 Score

9.8

CRITICAL

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

Weakness Type (CWE)

CWE-434 Unrestricted Upload

Affected Products

Vendor	Product	Versions
zyxel	nas326_firmware	< 5.21\(aazf.17\)c0
zyxel	nas326	All
zyxel	nas542_firmware	< 5.21\(abag.14\)c0
zyxel	nas542	All

References

Advisories & Patches

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nas-products-06-04-2024 https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-multiple-vulnerabilities-in-nas-products-06-04-2024

Exploits

https://outpost24.com/blog/zyxel-nas-critical-vulnerabilities/ https://outpost24.com/blog/zyxel-nas-critical-vulnerabilities/

Frequently Asked Questions

What is CVE-2024-29974? +

** UNSUPPORTED WHEN ASSIGNED ** The remote code execution vulnerability in the CGI program “file_upload-cgi” in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an unauthenticated attacker to execute arbitrary code by uploading a crafted configuration file to a vulnerable device. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-29974? +

CVE-2024-29974 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-29974? +

CVE-2024-29974 affects products from zyxel, specifically: nas326, nas326_firmware, nas542, nas542_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-29974? +

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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