CVE-2023-6398: OS Command Injection

Published Feb 20, 2024
·
Updated

A post-authentication command injection vulnerability in the file upload binary in Zyxel ATP series firmware versions from 4.32 through 5.37 Patch 1, USG FLEX series firmware versions from 4.50 through 5.37 Patch 1, USG FLEX 50(W) series firmware versions from 4.16 through 5.37 Patch 1, USG20(W)-VPN series firmware versions from 4.16 through 5.37 Patch 1,

USG FLEX H series firmware versions from 1.10 through 1.10 Patch 1,

NWA50AX firmware versions through 6.29(ABYW.3), WAC500 firmware versions through 6.65(ABVS.1), WAX300H firmware versions through 6.60(ACHF.1), and WBE660S firmware versions through 6.65(ACGG.1) could allow an authenticated attacker with administrator privileges to execute some operating system (OS) commands on an affected device via FTP.

Affected Software

141 affected components
All of the following
Any of the following
Zyxel Atp100 Firmware>=4.32<5.37
Zyxel Atp100 Firmware=5.37
Zyxel Atp100 Firmware=5.37-patch1
Zyxel Atp100
All of the following
Any of the following
Zyxel Atp100w Firmware>=4.32<5.37
Zyxel Atp100w Firmware=5.37
Zyxel Atp100w Firmware=5.37-patch1
Zyxel Atp100w
All of the following
Any of the following
Zyxel Atp200 Firmware>=4.32<5.37
Zyxel Atp200 Firmware=5.37
Zyxel Atp200 Firmware=5.37-patch1
Zyxel ATP200
All of the following
Any of the following
Zyxel Atp500 Firmware>=4.32<5.37
Zyxel Atp500 Firmware=5.37
Zyxel Atp500 Firmware=5.37-patch1
Zyxel ATP500
All of the following
Any of the following
Zyxel Atp700 Firmware>=4.32<5.37
Zyxel Atp700 Firmware=5.37
Zyxel Atp700 Firmware=5.37-patch1
Zyxel Atp700
All of the following
Any of the following
Zyxel Atp800 Firmware>=4.32<5.37
Zyxel Atp800 Firmware=5.37
Zyxel Atp800 Firmware=5.37-patch1
Zyxel ATP800
All of the following
Any of the following
Zyxel Usg Flex 100 Firmware>=4.50<5.37
Zyxel Usg Flex 100 Firmware=5.37
Zyxel Usg Flex 100 Firmware=5.37-patch1
Zyxel Usg Flex 100
All of the following
Any of the following
Zyxel Usg Flex 100ax Firmware>=4.50<5.37
Zyxel Usg Flex 100ax Firmware=5.37
Zyxel Usg Flex 100ax Firmware=5.37-patch1
Zyxel Usg Flex 100ax
All of the following
Any of the following
Zyxel Usg Flex 100h Firmware>=4.50<5.37
Zyxel Usg Flex 100h Firmware=5.37
Zyxel Usg Flex 100h Firmware=5.37-patch1
Zyxel Usg Flex 100h
All of the following
Any of the following
Zyxel Usg Flex 100w Firmware>=4.50<5.37
Zyxel Usg Flex 100w Firmware=5.37
Zyxel Usg Flex 100w Firmware=5.37-patch1
Zyxel Usg Flex 100w
All of the following
Any of the following
Zyxel USG FLEX 200 firmware>=4.50<5.37
Zyxel USG FLEX 200 firmware=5.37
Zyxel USG FLEX 200 firmware=5.37-patch1
Zyxel USG FLEX 200
All of the following
Any of the following
Zyxel Usg Flex 200h Firmware>=4.50<5.37
Zyxel Usg Flex 200h Firmware=5.37
Zyxel Usg Flex 200h Firmware=5.37-patch1
Zyxel Usg Flex 200h
All of the following
Any of the following
Zyxel Usg Flex 200hp Firmware>=4.50<5.37
Zyxel Usg Flex 200hp Firmware=5.37
Zyxel Usg Flex 200hp Firmware=5.37-patch1
Zyxel Usg Flex 200hp
All of the following
Any of the following
Zyxel Usg Flex 50 Firmware>=4.16<5.37
Zyxel Usg Flex 50 Firmware=5.37
Zyxel Usg Flex 50 Firmware=5.37-patch1
Zyxel USG FLEX 50
All of the following
Any of the following
Zyxel USG FLEX 500 firmware>=4.50<5.37
Zyxel USG FLEX 500 firmware=5.37
Zyxel USG FLEX 500 firmware=5.37-patch1
Zyxel USG FLEX 500
All of the following
Any of the following
Zyxel Usg Flex 500h Firmware>=4.50<5.37
Zyxel Usg Flex 500h Firmware=5.37
Zyxel Usg Flex 500h Firmware=5.37-patch1
Zyxel Usg Flex 500h
All of the following
Any of the following
Zyxel Usg Flex 50w Firmware>=4.16<5.37
Zyxel Usg Flex 50w Firmware=5.37
Zyxel Usg Flex 50w Firmware=5.37-patch1
Zyxel Usg Flex 50w
All of the following
Any of the following
Zyxel USG FLEX 700 firmware>=4.50<5.37
Zyxel USG FLEX 700 firmware=5.37
Zyxel USG FLEX 700 firmware=5.37-patch1
Zyxel USG FLEX 700
All of the following
Any of the following
Zyxel Usg Flex 700h Firmware>=4.50<5.37
Zyxel Usg Flex 700h Firmware=5.37
Zyxel Usg Flex 700h Firmware=5.37-patch1
Zyxel Usg Flex 700h
All of the following
Any of the following
Zyxel Usg20-vpn Firmware>=4.16<5.37
Zyxel Usg20-vpn Firmware=5.37
Zyxel Usg20-vpn Firmware=5.37-patch1
Zyxel USG20-VPN
All of the following
Any of the following
Zyxel Usg20w-vpn Firmware>=4.16<5.37
Zyxel Usg20w-vpn Firmware=5.37
Zyxel Usg20w-vpn Firmware=5.37-patch1
Zyxel USG20W-VPN
All of the following
Any of the following
Zyxel Uos=1.10
Zyxel Uos=1.10-patch1
Any of the following
Zyxel Usg Flex 100h
Zyxel Usg Flex 100hp
Zyxel Usg Flex 200h
Zyxel Usg Flex 200hp
Zyxel Usg Flex 500h
Zyxel Usg Flex 700h
All of the following
Zyxel NWA50AX firmware<6.29\(abyw.4\)
Zyxel NWA50AX
All of the following
Zyxel Nwa55axe Firmware<6.29\(abzl.4\)
Zyxel Nwa55axe
All of the following
Zyxel Nwa90ax Firmware<6.29\(accv.4\)
Zyxel Nwa90ax
All of the following
Zyxel NWA110AX firmware<6.70\(abtg.2\)
Zyxel NWA110AX
All of the following
Zyxel Nwa210ax Firmware<6.70\(abtd.2\)
Zyxel Nwa210ax
All of the following
Zyxel Nwa220ax-6e Firmware<6.70\(acco.1\)
Zyxel Nwa220ax-6e
All of the following
Zyxel NWA1123ACv3 firmware<6.70\(abvt.1\)
Zyxel NWA1123ACv3
All of the following
Zyxel WAC500 firmware<6.70\(abvs.1\)
Zyxel WAC500
All of the following
Zyxel Wac500h Firmware<6.70\(abwa.1\)
Zyxel Wac500h
All of the following
Zyxel WAX300H firmware<6.70\(achf.1\)
Zyxel WAX300H
All of the following
Zyxel WAX510D firmware<6.70\(abtf.2\)
Zyxel WAX510D
All of the following
Zyxel Wax610d Firmware<6.70\(abte.2\)
Zyxel Wax610d
All of the following
Zyxel Wax620d-6e Firmware<6.70\(accn.1\)
Zyxel Wax620d-6e
All of the following
Zyxel Wax630s Firmware<6.70\(abzd.2\)
Zyxel Wax630s
All of the following
Zyxel Wax640s-6e Firmware<6.70\(accm.1\)
Zyxel Wax640s-6e
All of the following
Zyxel Wax650s Firmware<6.70\(abrm.2\)
Zyxel Wax650s
All of the following
Zyxel WAX655E firmware<6.70\(acdo.1\)
Zyxel WAX655E
All of the following
Zyxel WBE660S firmware<6.70\(acgg.2\)
Zyxel WBE660S
All of the following
Zyxel Nwa50ax-pro Firmware<6.80\(acge.0\)
Zyxel Nwa50ax-pro
All of the following
Zyxel Nwa90ax-pro Firmware<6.80\(acgf.0\)
Zyxel Nwa90ax-pro
Zyxel ATP series firmware>=4.32<5.37 Patch 1
Zyxel USG FLEX series firmware>=4.50<5.37 Patch 1
Zyxel USG FLEX 50(W) series firmware>=4.16<5.37 Patch 1
Zyxel USG20(W)-VPN series firmware>=4.16<5.37 Patch 1
Zyxel USG FLEX H series firmware>=1.10<1.10 Patch 1
Zyxel NWA50AX firmware<=6.29(ABYW.3)
Zyxel WAC500 firmware<=6.65(ABVS.1)
Zyxel WAX300H firmware<=6.60(ACHF.1)
Zyxel WBE660S firmware<=6.65(ACGG.1)

Event History

Feb 20, 2024
CVE Published
via MITRE·01:34 AM
Data Sourced
via MITRE·01:34 AM
DescriptionSeverityWeakness
Data Sourced
via NVD·02:15 AM
DescriptionSeverityWeakness
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Frequently Asked Questions

1

What is the severity of CVE-2023-6398?

CVE-2023-6398 has a medium severity level as it allows post-authentication command injection in affected Zyxel devices.

2

How do I fix CVE-2023-6398?

To mitigate CVE-2023-6398, update the firmware of your Zyxel device to the latest version that addresses this vulnerability.

3

Which devices are affected by CVE-2023-6398?

CVE-2023-6398 affects multiple Zyxel ATP and USG FLEX series firmware versions from 4.32 to 5.37 Patch 1.

4

What is the nature of the vulnerability in CVE-2023-6398?

CVE-2023-6398 is a post-authentication command injection vulnerability that can be exploited after a user logs into the system.

5

Is there a patch available for CVE-2023-6398?

Yes, patches have been released for CVE-2023-6398, and users should ensure their devices are updated to the patched firmware.

Company

Resources

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