Detections
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Zyxel Command Injection (CVE-2023-28771) (Direct Check)

critical Nessus Plugin ID 176238

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Synopsis

A remote host is missing a vendor-supplied update.

Description

The remote host is a Zyxel device that is affected by a remote command injection vulnerability. A remote, unauthenticated attacker can exploit this issue, via a specially crafted IKEv2 request, to execute commands on the remote host.

Solution

Upgrade to Zyxel USG, ATP, or VPN firmware 5.36 or Zyxel ZyWall firmware 4.73 Patch 1 or later.

See Also

http://www.nessus.org/u?3bab8fe5

Plugin Details

Severity: Critical

ID: 176238

File Name: zyxel_CVE-2023-28771_direct.nbin

Version: 1.11

Type: remote

Family: Firewalls

Published: 5/23/2023

Updated: 3/19/2024

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Critical

Score: 9.0

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 8.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2023-28771

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:F/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/25/2023

Vulnerability Publication Date: 4/25/2023

CISA Known Exploited Vulnerability Due Dates: 6/21/2023

Exploitable With

Metasploit (Zyxel IKE Packet Decoder Unauthenticated Remote Code Execution)

Reference Information

CVE: CVE-2023-28771