CVE-2023-37927: OS Command Injection

Published Nov 30, 2023
·
Updated

The improper neutralization of special elements in the CGI program of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0 could allow an authenticated attacker to execute some operating system (OS) commands by sending a crafted URL to a vulnerable device.

Affected Software

4 affected components
All of the following
Zyxel NAS326<=5.21\(aazf.14\)c0
Zyxel NAS326
All of the following
Zyxel NAS542 firmware<=5.21\(abag.11\)c0
Zyxel NAS542 firmware

Remediation

Patch Available

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-authentication-bypass-and-command-injection-vulnerabilities-in-nas-products

Event History

Nov 30, 2023
CVE Published
01:34 AM
Data Sourced
01:34 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is CVE-2023-37927?

CVE-2023-37927 refers to the improper neutralization of special elements in the CGI program of the Zyxel NAS326 firmware version V5.21(AAZF.14)C0 and NAS542 firmware version V5.21(ABAG.11)C0, which could allow an authenticated attacker to execute operating system commands by sending a crafted URL.

2

What is the severity of CVE-2023-37927?

CVE-2023-37927 has a severity rating of 8.8 (high).

3

How does CVE-2023-37927 affect the Zyxel NAS326 firmware?

CVE-2023-37927 affects the Zyxel NAS326 firmware version V5.21(AAZF.14)C0, allowing an authenticated attacker to execute operating system commands through a crafted URL.

4

How does CVE-2023-37927 affect the Zyxel NAS542 firmware?

CVE-2023-37927 affects the Zyxel NAS542 firmware version V5.21(ABAG.11)C0, allowing an authenticated attacker to execute operating system commands through a crafted URL.

5

How can I fix CVE-2023-37927?

To fix CVE-2023-37927, it is recommended to update the Zyxel NAS326 firmware to a non-vulnerable version.

Company

Resources

Contact

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