Fortinet FortiOS: Improper Verification of Cryptographic Signature (CVE-2021-43074)

Fortinet FortiOS: Improper Verification of Cryptographic Signature (CVE-2021-43074)

Severity

4

CVSS

(AV:N/AC:L/Au:S/C:P/I:N/A:N)

Published

02/16/2023

Created

02/28/2023

Added

02/27/2023

Modified

01/28/2025

Description

An improper verification of cryptographic signature vulnerability [CWE-347] in FortiWeb 6.4 all versions, 6.3.16 and below, 6.2 all versions, 6.1 all versions, 6.0 all versions; FortiOS 7.0.3 and below, 6.4.8 and below, 6.2 all versions, 6.0 all versions; FortiSwitch 7.0.3 and below, 6.4.10 and below, 6.2 all versions, 6.0 all versions; FortiProxy 7.0.1 and below, 2.0.7 and below, 1.2 all versions, 1.1 all versions, 1.0 all versions may allow an attacker to decrypt portions of the administrative session management cookie if able to intercept the latter.

Solution(s)

• fortios-upgrade-6_4_9
• fortios-upgrade-7_0_4

References

• https://attackerkb.com/topics/cve-2021-43074
• CVE - 2021-43074
• https://fortiguard.com/psirt/FG-IR-21-126