CVE-2023-41675: Webproxy process denial of service
First published: Tue Oct 10 2023(Updated: )
A use after free vulnerability [CWE-416] in FortiOS & FortiProxy may allow an unauthenticated remote attacker to crash the Web Proxy process via multiple crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.
Credit: psirt@fortinet.com psirt@fortinet.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fortinet FortiProxy | >=7.0.0<=7.0.8 | |
| Fortinet FortiProxy | =7.2.0 | |
| Fortinet FortiProxy | =7.2.1 | |
| Fortinet FortiProxy | =7.2.2 | |
| Fortinet FortiOS | >=7.0.0<=7.0.10 | |
| Fortinet FortiOS | >=7.2.0<=7.2.4 |
Remedy
Please upgrade to FortiOS version 7.4.0 or above Please upgrade to FortiOS version 7.2.5 or above Please upgrade to FortiOS version 7.0.11 or above Please upgrade to FortiProxy version 7.2.3 or above Please upgrade to FortiProxy version 7.0.9 or above FortiSASE is no longer impacted, issue remediated Q2/23
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Reference Links
Frequently Asked Questions
What is CVE-2023-41675?
CVE-2023-41675 is a use after free vulnerability in FortiOS and FortiProxy versions 7.0.0 through 7.0.10 and 7.2.0 through 7.2.4.
What is the severity of CVE-2023-41675?
The severity of CVE-2023-41675 is medium with a CVSS score of 5.3.
How does CVE-2023-41675 affect FortiOS?
CVE-2023-41675 may allow an unauthenticated remote attacker to crash the WAD process in FortiOS.
How does CVE-2023-41675 affect FortiProxy?
CVE-2023-41675 may allow an unauthenticated remote attacker to crash the WAD process in FortiProxy.
Is there a fix available for CVE-2023-41675?
Yes, Fortinet has released fixes for CVE-2023-41675. It is recommended to update to the latest version of FortiOS or FortiProxy.
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