QID 377738

Date Published: 2022-11-09

QID 377738: FortiClient - SAML SSO Replay Attack Vulnerability (FG-IR-21-192)

An authentication bypass by capture-replay vulnerability [CWE-294] in FortiClient EMS may allow an unauthenticated attacker to impersonate an existing user by intercepting and re-using valid SAML authentication messages.

Affected Products:
FortiClientEMS version 7.0.1 and below.
FortiClientEMS version 6.4.4 and below.
QID Detection Logic (Authenticated) :
This checks for vulnerable version of FortiClient.exe.

Vulnerable version may allow an unauthenticated attacker to impersonate an existing user by intercepting and re-using valid SAML authentication messages

CVSS V3 rated as Critical - 9.1 severity.

CVSS V2 rated as High - 6.4 severity.

Solution

Users are advised to upgrade to the latest version FortiClient. Please refer Forticlient Advisory for further information.

Vendor References

FG-IR-21-192 - www.fortiguard.com/psirt/FG-IR-21-192

CVEs related to QID 377738

CVE-2021-41030 |

Software Advisories

Advisory ID	Software	Component	Link
FG-IR-21-192			www.fortiguard.com/psirt/FG-IR-21-192

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