FG-IR-23-446: FortiOS - IP address validation mishandles zero characters
First published: Tue Jul 09 2024(Updated: )
An incorrect parsing of numbers with different radices vulnerability [CWE-1389] in FortiOS and FortiProxy IP address validation feature may permit an unauthenticated attacker to bypass the IP blocklist via crafted requests.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FortiOS | >=7.4.0<=7.4.3 | |
| FortiOS | >=7.2.0<=7.2.8 | |
| FortiOS | >=7.0 | |
| Fortinet FortiProxy SSL VPN webmode | >=7.4.0<=7.4.3 | |
| Fortinet FortiProxy SSL VPN webmode | >=7.2 | |
| Fortinet FortiProxy SSL VPN webmode | >=7.0 |
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Reference Links
Frequently Asked Questions
What is the severity of FG-IR-23-446?
The severity of FG-IR-23-446 is considered high due to the potential for unauthenticated attackers to bypass IP blocklists.
How do I fix FG-IR-23-446?
To fix FG-IR-23-446, upgrade FortiOS or FortiProxy to version 7.4.4 or later, or version 7.2.9 for affected versions.
Which Fortinet products are affected by FG-IR-23-446?
FG-IR-23-446 affects FortiOS versions 7.0 to 7.4.3 and FortiProxy versions up to 7.4.3.
Can FG-IR-23-446 be exploited remotely?
Yes, FG-IR-23-446 can be exploited remotely by sending crafted requests to the affected FortiOS or FortiProxy installations.
Is authentication required to exploit FG-IR-23-446?
No, exploitation of FG-IR-23-446 does not require authentication, making it particularly dangerous.
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