#VU49279 Format string error in Fortinet FortiWeb


Published: 2021-01-05

Vulnerability identifier: #VU49279

Vulnerability risk: Medium

CVSSv3.1: 6.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-29018

CWE-ID: CWE-134

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Fortinet FortiWeb
Server applications / Remote management servers, RDP, SSH

Vendor: Fortinet, Inc

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to a format string error when processing data passed via the "redir" parameter. A remote authenticated user can send a specially crafted request containing format string specifiers and read contents of memory on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Fortinet FortiWeb: 6.3.0 - 6.3.5


External links
http://www.fortiguard.com/psirt/FG-IR-20-123


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