CVE-2024-29976: nas326 Privilege Escalation

Description

** UNSUPPORTED WHEN ASSIGNED ** The improper privilege management vulnerability in the command “show_allsessions” in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an authenticated attacker to obtain a logged-in administrator’s session information containing cookies on an affected device.

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CVSS v3.1 Score

6.5

MEDIUM

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

Weakness Type (CWE)

CWE-269 CWE-269

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-2024-29976? +

** UNSUPPORTED WHEN ASSIGNED ** The improper privilege management vulnerability in the command “show_allsessions” in Zyxel NAS326 firmware versions before V5.21(AAZF.17)C0 and NAS542 firmware versions before V5.21(ABAG.14)C0 could allow an authenticated attacker to obtain a logged-in administrator’s session information containing cookies on an affected device. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2024-29976? +

CVE-2024-29976 has a CVSS v3.1 score of 6.5 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-2024-29976? +

CVE-2024-29976 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-2024-29976? +

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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