CVE-2020-9294: An improper authentication vulnerability in FortiMail 5.4.10, 6.0.7, 6.2.2 and earlier and FortiVoiceEntreprise 6.0.0 and 6.0.1 may allow a remote…

PriorityP186critical9.8CVSS 3.1

AVNACLPRNUINSUCHIHAH

EXPLOIT

EPSS

77.78%

99.5th percentile

An improper authentication vulnerability in FortiMail 5.4.10, 6.0.7, 6.2.2 and earlier and FortiVoiceEntreprise 6.0.0 and 6.0.1 may allow a remote unauthenticated attacker to access the system as a legitimate user by requesting a password change via the user interface.

Affected

12 ranges

Vendor	Product	Version range	Fixed in
fortinet	fortimail	<= 5.4.10	—
fortinet	fortimail	—	—
fortinet	fortimail	—	—
fortinet	fortimail	—	—
fortinet	fortimail	—	—
fortinet	fortimail	6.0.0 – 6.0.7	—
fortinet	fortimail	6.2.0 – 6.2.2	—
fortinet	fortivoice	—	—
fortinet	fortivoice	6.0.0 – 6.0.1	—
fortinet	fortivoiceenterprise	—	—
fortinet	fortivoiceenterprise	—	—
fortinet	fortivoiceentreprise	—	—

Detection & IOCsextracted from sources · hover to see the quote

→Detect exploitation attempts by monitoring for unauthenticated password change requests via the FortiMail user interface, as this is the attack vector for the login bypass ↗
→A Metasploit auxiliary scanner module exists for detecting vulnerable FortiMail instances; monitor for scanner activity patterns consistent with this module against FortiMail HTTP endpoints ↗
→Affected products include FortiMail 5.4.10, 6.0.7, 6.2.2 and earlier, and FortiVoiceEntreprise 6.0.0 and 6.0.1 — alert on unauthenticated sessions gaining authenticated access on these versions ↗

·Vulnerability is classified as CWE-287 (Improper Authentication) with a CVSS score of 9.8 (Critical); prioritize patching FortiMail and FortiVoiceEntreprise instances exposed to the internet ↗

CVSS provenance

nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P

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