Denial of service in FortiAuthenticator, FortiDeceptor and FortiMail
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2022-29056 |
| CWE-ID | CWE-307 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Fortinet FortiMail Server applications / IDS/IPS systems, Firewalls and proxy servers FortiDeceptor Client/Desktop applications / Other client software FortiAuthenticator Client/Desktop applications / Other client software |
| Vendor | Fortinet, Inc |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Improper Restriction of Excessive Authentication Attempts
EUVDB-ID: #VU74994
Risk: Low
CVSSv3.1: 3.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-29056
CWE-ID:
CWE-307 - Improper Restriction of Excessive Authentication Attempts
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper restriction of excessive authentication attempts. A remote attacker can send numerous HTTP requests to the login form and partially exhaust CPU and memory resources.
Install updates from vendor's website.
Vulnerable software versionsFortinet FortiMail: 5.4.0 - 6.4.0
FortiDeceptor: 1.0.0 - 3.1.1
FortiAuthenticator: 5.1.0 - 6.4.6
External linkshttp://fortiguard.com/psirt/FG-IR-20-078
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
