Vulnerability identifier: #VU61723
Vulnerability risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-287
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
USG series
Client/Desktop applications /
Antivirus software/Personal firewalls
USG FLEX series
Client/Desktop applications /
Antivirus software/Personal firewalls
VPN series
Client/Desktop applications /
Antivirus software/Personal firewalls
ZyWALL
Other software /
Other software solutions
NSG series
Hardware solutions /
Routers for home users
ATP series
Hardware solutions /
Routers for home users
Vendor:
Description
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to missing authentication checks in the web interface. A remote attacker can bypass authentication process and obtain administrative access to the device.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
External links
http://www.zyxel.com/support/Zyxel-security-advisory-for-authentication-bypass-vulnerability-of-firewalls.shtml
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?
No. We are not aware of malware exploiting this vulnerability.