PT-2023-8079 · Fortinet · Fortimail

Published 2023-12-12 · Updated 2025-03-18 · CVE-2023-47539

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions FortiMail versions prior to 7.4.0

Description The issue is related to the implementation of the RADIUS protocol in FortiMail's email protection system, specifically with access control limitations when using the Remote wildcard configuration. This can be exploited by a remote attacker to bypass the authentication procedure. A crafted HTTP request can allow a remote unauthenticated attacker to bypass admin login.

Recommendations For FortiMail versions prior to 7.4.0, consider disabling the Remote wildcard configuration as a temporary workaround to minimize the risk of exploitation. Restrict access to the admin login interface until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

Improper Authentication

Weakness Enumeration

CWE-284

CWE-287

Related Identifiers

BDU:2024-00057

CVE-2023-47539

Affected Products

Fortimail

References · 10

• https://osv.dev/vulnerability/CVE-2023-47539 · Vendor Advisory
• https://bdu.fstec.ru/vul/2024-00057 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-47539 · Security Note
• https://safe-surf.ru/upload/VULN-new/VULN.2023-12-22.1.pdf · Security Note
• https://twitter.com/fletch_ai/status/1735179571949957411 · Twitter Post
• https://fortiguard.com/psirt/FG-IR-23-439 · Note
• https://twitter.com/RsSI47041968/status/1735008326705107095 · Twitter Post
• https://twitter.com/CveFindCom/status/1901997442880430152 · Twitter Post
• https://twitter.com/CVEnew/status/1902000767143383478 · Twitter Post
• https://twitter.com/autumn_good_35/status/1734930624878883290 · Twitter Post