This security advisory describes one high risk vulnerability.
CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C] [PCI]
Exploit availability: NoDescription
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in the authentication process. A remote non-authenticated attacker can send a specially crafted HTTP POST request and delete arbitrary files on the system using directory traversal sequences. In particular, deleting specific configuration files will reset the Admin password to its default value.
Successful exploitation of the vulnerability may allow an attacker to gain full access to the affected system.
Install updates from vendor's website.Vulnerable software versions
FortiWAN: before 5.1.1CPE
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.