OS Command Injection in multiple Zyxel devices
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-30525 |
| CWE-ID | CWE-78 |
| Exploitation vector | Network |
| Public exploit | Vulnerability #1 is being exploited in the wild. |
| Vulnerable software |
USG FLEX 100W Hardware solutions / Firmware USG FLEX 200 Hardware solutions / Firmware USG FLEX 500 Hardware solutions / Firmware USG FLEX 700 Hardware solutions / Firmware USG FLEX 50W Hardware solutions / Firmware USG20W-VPN Hardware solutions / Firmware ATP series Hardware solutions / Routers for home users VPN series Client/Desktop applications / Antivirus software/Personal firewalls |
| Vendor | ZyXEL Communications Corp. |
Security Bulletin
This security bulletin contains one high risk vulnerability.
1) OS Command Injection
EUVDB-ID: #VU63145
Risk: High
CVSSv4.0: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]
CVE-ID: CVE-2022-30525
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: Yes
DescriptionThe vulnerability allows a remote attacker to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the CGI program. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsUSG FLEX 100W: 5.00 - 5.21 Patch 1
USG FLEX 200: 5.00 - 5.21 Patch 1
USG FLEX 500: 5.00 - 5.21 Patch 1
USG FLEX 700: 5.00 - 5.21 Patch 1
USG FLEX 50W: 5.10 - 5.21 Patch 1
USG20W-VPN: 5.10 - 5.21 Patch 1
ATP series: 5.10 - 5.21 Patch 1
VPN series: 4.60 - 5.21 Patch 1
CPE2.3- cpe:2.3:h:zyxel_communications_corp:usg_flex_100w:*:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_100w:5.00:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_100w:5.21:Patch 1:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_200:*:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_200:5.00:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_200:5.21:Patch 1:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_500:*:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_500:5.00:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_500:5.21:Patch 1:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_700:*:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg_flex_50w:*:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:usg20w-vpn:*:*:*:*:*:*:*:*
- cpe:2.3:h:zyxel_communications_corp:atp_series:*:*:*:*:*:*:*:*
- cpe:2.3:a:zyxel_communications_corp:vpn_series:*:*:*:*:*:*:*:*
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
Yes. This vulnerability is being exploited in the wild.
