CVE-2021-41030 Auth bypass in Fortinet FortiClientEMS

What is CVE-2021-41030?

CVE-2021-41030 is a medium-severity authentication bypass vulnerability in Fortinet FortiClientEMS, published on 8 Dec 2021. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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.

Weakness: CWE-294

Which versions are affected by CVE-2021-41030?

It affects 1 product.

Products include Fortinet Forticlient Enterprise Management Server.

How do I fix CVE-2021-41030?

No fix has been published for CVE-2021-41030 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-41030 being exploited?

There is no known exploitation of CVE-2021-41030 in the wild and no public exploit code.

Other vulnerabilities in Fortinet FortiClientEMS

• CVE-2023-48788 Fortinet FortiClient EMS SQL Injection Exploited Critical 9.3
• CVE-2023-45581 Privilege escalation in FortiClientEMS High 7.9
• CVE-2024-33508 Command injection in FortiClientEMS Medium 6.9
• CVE-2021-36189 Information disclosure in Fortinet FortiClientEMS Medium 6.8
• CVE-2020-15940 Cross-site scripting in Fortinet FortiClientEMS Medium 4.1

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-g3q6-jxj3-44v3.