Denial of service in FortiAuthenticator



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-22124
CWE-ID N/A
Exploitation vector Network
Public exploit N/A
Vulnerable software
 FortiAuthenticator
Client/Desktop applications / Other client software

Vendor Fortinet, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Resource exhaustion

EUVDB-ID: #VU55554

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22124

CWE-ID: N/A

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in login modules. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

FortiAuthenticator: 4.3.0 - 6.0.5

CPE2.3 External links

https://www.fortiguard.com/psirt/FG-IR-20-170


Q & A

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.



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