CVE-2023-37930

Description

Multiple issues including the use of uninitialized ressources [CWE-908] and excessive iteration [CWE-834] vulnerabilities in Fortinet FortiOS SSL VPN webmode version 7.4.0, version 7.2.0 through 7.2.5, version 7.0.1 through 7.0.11 and version 6.4.7 through 6.4.14 and Fortinet FortiProxy SSL VPN webmode version 7.2.0 through 7.2.6 and version 7.0.0 through 7.0.12 allows a VPN user to corrupt memory potentially leading to code or commands execution via specifically crafted requests.

Remediation

Solution:

  • Please upgrade to FortiOS version 7.4.1 or above Please upgrade to FortiOS version 7.2.6 or above Please upgrade to FortiOS version 7.0.13 or above Please upgrade to FortiOS version 6.4.15 or above Please upgrade to FortiOS version 6.4.14 or above Please upgrade to FortiProxy version 7.4.0 or above Please upgrade to FortiProxy version 7.2.7 or above Please upgrade to FortiProxy version 7.0.13 or above FortiSASE is no longer impacted, issue remediated Q3/23 ## Workaround: Disable SSLVPN webmode. Alternatively, please use SSLVPN tunnel mode, IPsec (tunnel) or ZTNA (web access). https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-disable-SSL-VPN-Web-Mode-or-Tunnel-Mode-in/ta-p/217990 https://docs.fortinet.com/document/fortigate/7.2.3/administration-guide/45836/ssl-vpn-to-ipsec-vpn https://docs.fortinet.com/document/fortigate/7.2.3/administration-guide/78050/migrating-from-ssl-vpn-to-ztna

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.11%
Affected: Fortinet FortiOS
Affected: Fortinet FortiProxy
Published at:
Updated at:

References

Link Tags
https://fortiguard.com/psirt/FG-IR-23-165

Frequently Asked Questions

What is the severity of CVE-2023-37930?
CVE-2023-37930 has been scored as a high severity vulnerability.
How to fix CVE-2023-37930?
To fix CVE-2023-37930: Please upgrade to FortiOS version 7.4.1 or above Please upgrade to FortiOS version 7.2.6 or above Please upgrade to FortiOS version 7.0.13 or above Please upgrade to FortiOS version 6.4.15 or above Please upgrade to FortiOS version 6.4.14 or above Please upgrade to FortiProxy version 7.4.0 or above Please upgrade to FortiProxy version 7.2.7 or above Please upgrade to FortiProxy version 7.0.13 or above FortiSASE is no longer impacted, issue remediated Q3/23 ## Workaround: Disable SSLVPN webmode. Alternatively, please use SSLVPN tunnel mode, IPsec (tunnel) or ZTNA (web access). https://community.fortinet.com/t5/FortiGate/Technical-Tip-How-to-disable-SSL-VPN-Web-Mode-or-Tunnel-Mode-in/ta-p/217990 https://docs.fortinet.com/document/fortigate/7.2.3/administration-guide/45836/ssl-vpn-to-ipsec-vpn https://docs.fortinet.com/document/fortigate/7.2.3/administration-guide/78050/migrating-from-ssl-vpn-to-ztna
Is CVE-2023-37930 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-37930 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-37930?
CVE-2023-37930 affects Fortinet FortiOS, Fortinet FortiProxy.
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