What is CVE-2021-41030?

CVE-2021-41030 is an authentication bypass by capture-replay vulnerability in FortiClient EMS versions 7.0.1 and below and 6.4.4 and below.

Which versions of FortiClient EMS are affected by CVE-2021-41030?

FortiClient EMS versions 7.0.1 and below and 6.4.4 and below are affected by CVE-2021-41030.

What is the severity of CVE-2021-41030?

CVE-2021-41030 has a severity rating of critical (9.1).

How can I mitigate the vulnerability in FortiClient EMS?

To mitigate the vulnerability, it is recommended to upgrade FortiClient EMS to a version that is not affected by CVE-2021-41030.

Vulnerability/
CVE-2021-41030

critical

9.1

CWE

294

8/12/2021

4/8/2024

CVE-2021-41030

Q: How does CVE-2021-41030 impact FortiClient EMS?

CVE-2021-41030 may allow an unauthenticated attacker to impersonate an existing user by intercepting and re-using valid SAML authentication messages in FortiClient EMS.

First published: Wed Dec 08 2021(Updated: )

An authentication bypass by capture-replay vulnerability [CWE-294] in FortiClient EMS versions 7.0.1 and below and 6.4.4 and below may allow an unauthenticated attacker to impersonate an existing user by intercepting and re-using valid SAML authentication messages.

Credit: psirt@fortinet.com

Affected Software	Affected Version	How to fix
Fortinet FortiClient Enterprise Management Server	>=6.2.0<=6.2.9
Fortinet FortiClient Enterprise Management Server	>=6.4.0<=6.4.4
Fortinet FortiClient Enterprise Management Server	=7.0.0
Fortinet FortiClient Enterprise Management Server	=7.0.1

Remedy

https://fortiguard.com/advisory/FG-IR-21-192

Never miss a vulnerability like this again

Reference Links

https://fortiguard.com/advisory/FG-IR-21-192

Frequently Asked Questions

What is CVE-2021-41030?
CVE-2021-41030 is an authentication bypass by capture-replay vulnerability in FortiClient EMS versions 7.0.1 and below and 6.4.4 and below.
How does CVE-2021-41030 impact FortiClient EMS?
CVE-2021-41030 may allow an unauthenticated attacker to impersonate an existing user by intercepting and re-using valid SAML authentication messages in FortiClient EMS.
Which versions of FortiClient EMS are affected by CVE-2021-41030?
FortiClient EMS versions 7.0.1 and below and 6.4.4 and below are affected by CVE-2021-41030.
What is the severity of CVE-2021-41030?
CVE-2021-41030 has a severity rating of critical (9.1).
How can I mitigate the vulnerability in FortiClient EMS?
To mitigate the vulnerability, it is recommended to upgrade FortiClient EMS to a version that is not affected by CVE-2021-41030.

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version/fortinet forticlient enterprise management server/7.0.1

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