QID 44172

Date Published: 2024-02-26

QID 44172: FortiOS Fortilink Lack of Certificate Validation Vulnerability (FG-IR-23-301)

An improper certificate validation vulnerability [CWE-295] in FortiOS may allow an unauthenticated attacker in a Man-in-the-Middle position to decipher and alter the FortiLink communication channel between the FortiOS device and a FortiSwitch instance.

Affected Versions:
FortiOS 7.4 versions 7.4.0 through 7.4.1
FortiOS 7.2 versions 7.2.0 through 7.2.6
FortiOS 7.0 all versions

QID Detection Logic (Authenticated):(LINUX)
Detection checks for vulnerable version of FortiOS.

QID Detection Logic (Unauthenticated):
Detection checks for vulnerable version of FortiOS via SNMP Banner.

Vulnerable version of FortiOS may allow an unauthenticated attacker in a Man-in-the-Middle position to decipher and alter the FortiLink communication channel between the FortiOS device and a FortiSwitch instance.

CVSS V3 rated as Medium - 4.8 severity.

CVSS V2 rated as Low - 2.6 severity.

Solution

Vendor has released fixes to address this vulnerability
For more details refer advisory FG-IR-23-301

Vendor References

FG-IR-23-301 - www.fortiguard.com/psirt/FG-IR-23-301

CVEs related to QID 44172

CVE-2023-47537 |

Software Advisories

Advisory ID	Software	Component	Link
FG-IR-23-301			www.fortiguard.com/psirt/FG-IR-23-301

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