CVE-2023-40721: FortiOS / FortiProxy / FortiPAM / FortiSwitchManager - Format string vulnerability in CLI commands
First published: Tue Feb 11 2025(Updated: )
A use of externally-controlled format string vulnerability [CWE-134] in Fortinet FortiOS version 7.4.0 through 7.4.1 and before 7.2.6, FortiProxy version 7.4.0 and before 7.2.7, FortiPAM version 1.1.2 and before 1.0.3, FortiSwitchManager version 7.2.0 through 7.2.2 and before 7.0.2 allows a privileged attacker to execute arbitrary code or commands via specially crafted requests.
Credit: psirt@fortinet.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FortiOS | >=7.4.0<=7.4.1<7.2.6 | |
| Fortinet FortiProxy SSL VPN webmode | >=7.4.0<7.2.7 | |
| FortiGuard FortiPAM | <1.0.3 | |
| Fortinet FortiSwitchManager | >=7.2.0<=7.2.2<7.0.2 |
Remedy
Please upgrade to FortiOS version 7.4.2 or above Please upgrade to FortiOS version 7.2.7 or above Please upgrade to FortiPAM version 1.2.0 or above Please upgrade to FortiSwitchManager version 7.2.3 or above Please upgrade to FortiSwitchManager version 7.0.3 or above Please upgrade to FortiProxy version 7.4.1 or above Please upgrade to FortiProxy version 7.2.8 or above
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2023-40721?
CVE-2023-40721 is classified as a high-severity vulnerability due to its potential for privilege escalation.
How do I fix CVE-2023-40721?
To mitigate CVE-2023-40721, upgrade Fortinet FortiOS, FortiProxy, FortiPAM, and FortiSwitchManager to the latest patched versions.
Which versions are affected by CVE-2023-40721?
CVE-2023-40721 affects FortiOS versions 7.4.0 to 7.4.1 and prior to 7.2.6, FortiProxy versions 7.4.0 and prior to 7.2.7, FortiPAM versions before 1.0.3, and FortiSwitchManager versions 7.2.0 to 7.2.2 and prior to 7.0.2.
What type of vulnerability is CVE-2023-40721?
CVE-2023-40721 is categorized as a use of externally-controlled format string vulnerability, which can lead to privilege escalation.
Is there a workaround for CVE-2023-40721?
Currently, the recommended solution for CVE-2023-40721 is to update to the latest secure versions of the affected Fortinet products, as there are no effective workarounds.
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