Vulnerability identifier: #VU62772
Vulnerability risk: Medium
CVSSv3.1: 4.1 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-200
Exploitation vector: Network
Exploit availability: No
Vulnerable software:
FortiOS
Operating systems & Components /
Operating system
Vendor: Fortinet, Inc
Description
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output in server-generated error messages. A remote attacker can trick the victim to connect to a malicious webserver and retrieve a web proxy's client username and IP via same origin HTTP requests triggering proxy-generated HTTP status codes pages.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
FortiOS: 7.0.0 - 7.0.3, 6.0.0 - 6.0.14, 6.4.0 - 6.4.8, 6.2.0 - 6.2.10
External links
http://fortiguard.fortinet.com/psirt/FG-IR-21-231
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.