#VU55551 Session Fixation

Published: 2021-08-03

Vulnerability identifier: #VU55551

Vulnerability risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-26098


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Server applications / DLP, anti-spam, sniffers

Vendor: Fortinet, Inc


The vulnerability allows a remote attacker to gain unauthorized access to the application.

The vulnerability exists due to usage of predictable session identifier for JSON API. A remote attacker in possession of a few information pieces about the state of the device to possibly predict valid session IDs.

Install updates from vendor's website.

Vulnerable software versions

FortiSandbox: 3.2.0 - 3.2.2


External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

Latest bulletins with this vulnerability