PT-2021-15644 · Fortinet · Fortigate+1

Published 2021-06-01 · Updated 2021-06-14 · CVE-2021-24012

Positive Technologies (AI Summary)

CVSS v2.0

7.5

High

Base vector

AV:N/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions: FortiGate versions 6.4.0 through 6.4.4

Description: The issue is related to an improper following of a certificate's chain of trust, which may allow an LDAP user to connect to SSLVPN with any certificate that is signed by a trusted Certificate Authority. This could potentially lead to unauthorized access.

Recommendations: For FortiGate versions 6.4.0 through 6.4.4, update to a version that properly follows the certificate's chain of trust to prevent unauthorized access. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Certificate Validation

Weakness Enumeration

CWE-295

Related Identifiers

CVE-2021-24012

Affected Products

Fortigate

Fortios

References · 7

• https://osv.dev/vulnerability/CVE-2021-24012 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-24012 · Security Note
• https://fortiguard.com/advisory/FG-IR-21-018 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24012 · Security Note
• https://fortiguard.fortinet.com/psirt/FG-IR-21-018 · Note
• https://fortiguard.com/psirt/FG-IR-21-018 · Note
• https://t.me/cvenotify/15389 · Telegram Post