CVE-2021-36167
First published: Thu Dec 09 2021(Updated: )
An improper authorization vulnerabiltiy [CWE-285] in FortiClient Windows versions 7.0.0 and 6.4.6 and below and 6.2.8 and below may allow an unauthenticated attacker to bypass the webfilter control via modifying the session-id paramater.
Credit: psirt@fortinet.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fortinet FortiClient Windows | >=6.4.0<=6.4.6 | |
| Fortinet FortiClient Windows | =6.2.7 | |
| Fortinet FortiClient Windows | =7.0.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this vulnerability?
The vulnerability ID is CVE-2021-36167.
What is the severity rating of CVE-2021-36167?
CVE-2021-36167 has a severity rating of 5.3, which is considered medium.
Which versions of FortiClient Windows are affected by CVE-2021-36167?
FortiClient Windows versions 7.0.0, 6.4.6 and below, and 6.2.8 and below are affected by CVE-2021-36167.
How can an attacker exploit CVE-2021-36167?
An unauthenticated attacker can exploit CVE-2021-36167 by modifying the session-id parameter to bypass the webfilter control in FortiClient Windows.
Is there a fix available for CVE-2021-36167?
Yes, Fortinet has released patches to address the vulnerability. It is recommended to update FortiClient Windows to the latest version.
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