CVE-2022-38547: OS Command Injection
First published: Tue Feb 07 2023(Updated: )
A post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32, which could allow an authenticated attacker with administrator privileges to execute OS commands.
Credit: security@zyxel.com.tw
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Zyxel ZyWall ATP100 Firmware | >=4.32<=5.32 | |
| Zyxel ATP100 Firmware | ||
| Zyxel ATP200 firmware | >=4.32<=5.32 | |
| Zyxel ATP200 firmware | ||
| Zyxel Zywall ATP700 Firmware | >=4.32<=5.32 | |
| Zyxel ATP700 Firmware | ||
| Zyxel ATP500 Firmware | >=4.32<=5.32 | |
| Zyxel ATP500 Firmware | ||
| Zyxel ATP100W Firmware | >=4.32<=5.32 | |
| Zyxel ATP100W Firmware | ||
| Zyxel ATP800 | >=4.32<=5.32 | |
| Zyxel ATP800 Firmware | ||
| Zyxel USG FLEX 50(W) series firmware | >=4.50<=5.32 | |
| Zyxel USG FLEX 50 | ||
| Zyxel USG FLEX 200 | >=4.50<=5.32 | |
| Zyxel USG FLEX 200 firmware | ||
| Zyxel USG FLEX 500 | >=4.50<=5.32 | |
| Zyxel USG FLEX 500 firmware | ||
| Zyxel USG FLEX firmware | >=4.50<=5.32 | |
| Zyxel USG FLEX 700 firmware | ||
| Zyxel USG FLEX 100w firmware | >=4.50<=5.32 | |
| Zyxel USG FLEX 100w firmware | ||
| Zyxel USG Flex 100 firmware | >=4.50<=5.32 | |
| Zyxel USG FLEX 100 | ||
| Zyxel VPN1000 Firmware | >=4.30<=5.32 | |
| Zyxel VPN1000 Firmware | ||
| Zyxel USG 20w-VPN Firmware | >=4.30<=5.32 | |
| Zyxel USG20W-VPN Firmware | ||
| Zyxel USG20-VPN | >=4.30<=5.32 | |
| Zyxel USG20 | ||
| Zyxel Zywall VPN 50 Firmware | >=4.30<=5.32 | |
| Zyxel VPN50 Firmware | ||
| Zyxel Zywall VPN 300 Firmware | >=4.30<=5.32 | |
| Zyxel Zywall VPN300 | ||
| Zyxel VPN100 | >=4.30<=5.32 | |
| Zyxel VPN100 Firmware | ||
| Zyxel USG 40 firmware | >=4.20<=4.72 | |
| Zyxel USG 40 | ||
| Zyxel USG 40w firmware | >=4.20<=4.72 | |
| Zyxel USG40W Firmware | ||
| Zyxel USG60 Firmware | >=4.20<=4.72 | |
| Zyxel USG 60 | ||
| Zyxel USG60W Firmware | >=4.20<=4.72 | |
| Zyxel USG60W Firmware | ||
| Zyxel Zywall 110 | >=4.20<=4.72 | |
| Zyxel Zywall 110 firmware | ||
| Zyxel Zywall 1100 Firmware | >=4.20<=4.72 | |
| Zyxel Zywall 1100 Firmware | ||
| Zyxel ZyWALL USG 310 firmware | >=4.20<=4.72 | |
| Zyxel Zywall 310 Firmware |
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Reference Links
Frequently Asked Questions
What is CVE-2022-38547?
CVE-2022-38547 refers to a post-authentication command injection vulnerability in the CLI command of Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32.
How severe is CVE-2022-38547?
CVE-2022-38547 has a severity rating of 7.2 (high).
Which software versions are affected by CVE-2022-38547?
CVE-2022-38547 affects Zyxel ZyWALL/USG series firmware versions 4.20 through 4.72, VPN series firmware versions 4.30 through 5.32, USG FLEX series firmware versions 4.50 through 5.32, and ATP series firmware versions 4.32 through 5.32.
How can I fix CVE-2022-38547?
To fix CVE-2022-38547, it is recommended to update the firmware of Zyxel ZyWALL/USG series to versions 4.73 or higher, VPN series to versions 5.33 or higher, USG FLEX series to versions 5.33 or higher, and ATP series to versions 5.33 or higher.
Where can I find more information about CVE-2022-38547?
You can find more information about CVE-2022-38547 in the Zyxel Security Advisory for Post-Authentication RCE in Firewalls.
- agent/type
- agent/weakness
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/references
- agent/author
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/zyxel
- canonical/zyxel zywall atp100 firmware
- version/zyxel zywall atp100 firmware/4.32
- version/zyxel zywall atp100 firmware/5.32
- canonical/zyxel atp100 firmware
- canonical/zyxel atp200 firmware
- version/zyxel atp200 firmware/4.32
- version/zyxel atp200 firmware/5.32
- canonical/zyxel zywall atp700 firmware
- version/zyxel zywall atp700 firmware/4.32
- version/zyxel zywall atp700 firmware/5.32
- canonical/zyxel atp700 firmware
- canonical/zyxel atp500 firmware
- version/zyxel atp500 firmware/4.32
- version/zyxel atp500 firmware/5.32
- canonical/zyxel atp100w firmware
- version/zyxel atp100w firmware/4.32
- version/zyxel atp100w firmware/5.32
- canonical/zyxel atp800
- version/zyxel atp800/4.32
- version/zyxel atp800/5.32
- canonical/zyxel atp800 firmware
- canonical/zyxel usg flex 50(w) series firmware
- version/zyxel usg flex 50(w) series firmware/4.50
- version/zyxel usg flex 50(w) series firmware/5.32
- canonical/zyxel usg flex 50
- canonical/zyxel usg flex 200
- version/zyxel usg flex 200/4.50
- version/zyxel usg flex 200/5.32
- canonical/zyxel usg flex 200 firmware
- canonical/zyxel usg flex 500
- version/zyxel usg flex 500/4.50
- version/zyxel usg flex 500/5.32
- canonical/zyxel usg flex 500 firmware
- canonical/zyxel usg flex firmware
- version/zyxel usg flex firmware/4.50
- version/zyxel usg flex firmware/5.32
- canonical/zyxel usg flex 700 firmware
- canonical/zyxel usg flex 100w firmware
- version/zyxel usg flex 100w firmware/4.50
- version/zyxel usg flex 100w firmware/5.32
- canonical/zyxel usg flex 100 firmware
- version/zyxel usg flex 100 firmware/4.50
- version/zyxel usg flex 100 firmware/5.32
- canonical/zyxel usg flex 100
- canonical/zyxel vpn1000 firmware
- version/zyxel vpn1000 firmware/4.30
- version/zyxel vpn1000 firmware/5.32
- canonical/zyxel usg 20w-vpn firmware
- version/zyxel usg 20w-vpn firmware/4.30
- version/zyxel usg 20w-vpn firmware/5.32
- canonical/zyxel usg20w-vpn firmware
- canonical/zyxel usg20-vpn
- version/zyxel usg20-vpn/4.30
- version/zyxel usg20-vpn/5.32
- canonical/zyxel usg20
- canonical/zyxel zywall vpn 50 firmware
- version/zyxel zywall vpn 50 firmware/4.30
- version/zyxel zywall vpn 50 firmware/5.32
- canonical/zyxel vpn50 firmware
- canonical/zyxel zywall vpn 300 firmware
- version/zyxel zywall vpn 300 firmware/4.30
- version/zyxel zywall vpn 300 firmware/5.32
- canonical/zyxel zywall vpn300
- canonical/zyxel vpn100
- version/zyxel vpn100/4.30
- version/zyxel vpn100/5.32
- canonical/zyxel vpn100 firmware
- canonical/zyxel usg 40 firmware
- version/zyxel usg 40 firmware/4.20
- version/zyxel usg 40 firmware/4.72
- canonical/zyxel usg 40
- canonical/zyxel usg 40w firmware
- version/zyxel usg 40w firmware/4.20
- version/zyxel usg 40w firmware/4.72
- canonical/zyxel usg40w firmware
- canonical/zyxel usg60 firmware
- version/zyxel usg60 firmware/4.20
- version/zyxel usg60 firmware/4.72
- canonical/zyxel usg 60
- canonical/zyxel usg60w firmware
- version/zyxel usg60w firmware/4.20
- version/zyxel usg60w firmware/4.72
- canonical/zyxel zywall 110
- version/zyxel zywall 110/4.20
- version/zyxel zywall 110/4.72
- canonical/zyxel zywall 110 firmware
- canonical/zyxel zywall 1100 firmware
- version/zyxel zywall 1100 firmware/4.20
- version/zyxel zywall 1100 firmware/4.72
- canonical/zyxel zywall usg 310 firmware
- version/zyxel zywall usg 310 firmware/4.20
- version/zyxel zywall usg 310 firmware/4.72
- canonical/zyxel zywall 310 firmware