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Table of Contents

FortiOS Release Notes

Known issues

The following issues have been identified in version 6.4.7. For inquires about a particular bug or to report a bug, please contact Customer Service & Support.

Anti Virus

Bug ID

Description

665173 Crash logs are sometimes truncated/incomplete.

752420

If a .TAR.BZ2 or .TAR.GZ archive contains an archive bomb inside its compressed stream, the AV engine will time out.

Application Control

Bug ID

Description

787130

Application control does not block FTP traffic on an explicit proxy.

FortiView

Bug ID

Description

683654

FortiView pages with FortiAnalyzer source incorrectly display a Failed to retrieve data error on all VDOM views when there is a newly created VDOM that is not yet registered to FortiAnalyzer. The error should only show on the new VDOM view.

GUI

Bug ID

Description

440197

On the System > FortiGuard page, the override FortiGuard server for AntiVirus & IPS Updates shows an Unknown status, even if the server is working correctly. This is a display issue only; the override feature is working properly.

602397

Managed FortiSwitch and FortiSwitch Ports pages are slow to load when there are many managed FortiSwitches. This performance issue needs a fix on both FortiOS and FortiSwitch. A fix was provided in FortiOS 7.0.1 GA and FortiSwitch 7.0.1 GA.

653952

The web page cannot be found is displayed when a dashboard ID no longer exists.

Workaround: load another page in the navigation pane. Once loaded, load the original dashboard page (that displayed the error) again.

688016

GUI interface bandwidth widget does not show correct data for tunnel interface when ASIC offload is enabled on the firewall policy.

695163

When there are a lot of historical logs from FortiAnalyzer, the FortiGate GUI Forward Traffic log page can take time to load if there is no specific filter for the time range.

Workaround: provide a specific time range filter, or use the FortiAnalyzer GUI to view the logs.

699508

When an administrator ends a session by closing the browser, the administrator timeout event is not logged until the next time the administrator logs in.

704618

When login banner is enabled, and a user is forced to re-login to the GUI (due to password enforcement or VDOM enablement), users may see a Bad gateway error and HTTPSD crash.

Workaround: refresh the browser.

713529

When a FortiGate is managed by FortiManager with FortiWLM configured, the HTTPS daemon may crash while processing some FortiWLM API requests. There is no apparent impact on the GUI operation.

735248

On a mobile phone, the WiFi captive portal may take longer to load when the default firewall authentication login template is used and the user authentication type is set to HTTP.

Workaround: edit the login template to disable HTTP authentication or remove the href link to googleapis.

742561

On the Network > Interfaces page, after upgrading to FortiOS 6.4.7, a previously valid VLAN switch VLAN ID of 0 now displays the error message The minimum value is 2.

743477

On the Log & Report > Forward Traffic page, filtering by the Source or Destination column with negation on the IP range does not work.

745325

When creating a new (public or private) SDN connector, users are unable to specify an Update interval that contains 60, as it will automatically switch to Use Default.

745998

An IPsec phase 1 interface with a name that contains a / cannot be deleted from the GUI. The CLI must be used.

763925

GUI shows user as expired after entering a comment in guest management.

HA

Bug ID

Description

779180

FGSP does not synchronize the helper-pmap expectation session.

Intrusion Prevention

Bug ID

Description

654307

Wrong direction and banned location by quarantine action for ICMP.Oversized.Packet in NGFW policy mode.

763736

IPS custom signature logging shows (even after being disabled) after upgrading to FortiOS 6.4.7.

IPsec VPN

Bug ID

Description

726450

Local out dialup IPsec traffic does not match policy-based routes.

Log & Report

Bug ID

Description

745310

Need to add the MIGSOCK send handler to flush the queue when the first item is added to the syslog queue to avoid logs getting stuck.

768626

FortiGate does not send WELF (WebTrends Enhanced Log Format) logs.

769300

Traffic denied by security policy (NGFW policy-based mode) is shown as action="accept" in the traffic log.

Proxy

Bug ID

Description

604681

WAD process with SoC SSL acceleration enabled consumes more memory usage over time, which may lead to conserve mode.

Workaround: disable SoC SSL acceleration under the firewall SSL settings.

712584

WAD memory leak causes device to go into conserve mode.

Routing

Bug ID

Description

745856

The default SD-WAN route for the LTE wwan interface is not created.

Workaround: add a random gateway to the wwan member.

config system sdwan
    config members
        edit 2
            set interface "wwan"
            set gateway 10.198.58.58
            set priority 100
        next
    end
end

748733

Remote IP route shows incomplete inactive in the routing table, which causes issues with BGP routes where the peer is the next hop.

Security Fabric

Bug ID

Description

614691

Slow GUI performance in large Fabric topology with over 50 downstream devices.

SSL VPN

Bug ID

Description

718133

In some conditions, the web mode JavaScript parser will encounter an infinite loop that will cause SSL VPN crashes.

730416

Forward traffic log does not generate logs for HTTP and HTTPS services with SSL VPN web mode.

744494

Memory occupied by the SSL VPN daemon increases significantly while the process is busy.

768994

SSL VPN crashed when closing web mode RDP after upgrading to 6.4.7.

System

Bug ID

Description

555616

When NTurbo is enabled, it is unexpectedly provided with the wrong traffic direction information (from server or from client) to decide the destination for the data. This causes the traffic to be sent back to the port where it came from.

648085

Link status on peer device is not down when the admin port is down on the FortiGate.

681322

TCP 8008 permitted by authd, even though the service in the policy does not include that port.

685674

FortiGate did not restart after restoring the backup configuration via FortiManager after the following process: disable NPU offloading, change NGFW mode from profile-based to policy-based, retrieve configuration from FortiGate via FortiManager, and install the policy package via FortiManager.

687398

Multiple SFPs and FTLX8574D3BCL in multiple FG-1100E units have been flapping intermittently with various devices.

705878

Local certificates could not be saved properly, which caused issues such as not being able to properly restore them with configuration files and causing certificates and keys to be mismatched.

715978

NTurbo does not work with EMAC VLAN interface.

716483

DNS proxy is case sensitive when resolving FQDN, which may cause DNS failure in cases where local DNS forwarder is configured.

724085

Traffic passing through an EMAC VLAN interface when the parent interface is in another VDOM is blocked if NP7 offloading is enabled. If auto-asic-offload is disabled in the firewall policy, then the traffic flows as expected.

728647

DHCP discovery dropped on virtual wire pair when UTM is enabled.

732633

DNS query timeout log generated for first entry in DNS domain list when multiple domains are added.

741944

The forticron process has a memory leak if there are duplicated entries in the external IP range file.

747508

Default FortiLink configuration on FG-81F running versions 6.4.6 to 6.4.8 does not work as expected.

750202

USB unmounts after configuration backup.

751044

There was no sensor trap function and related log on SoC4 platforms.

758815

Connectivity issue on port26 because NP6 table configuration has an incorrect member list. Affected models: FG-110xE, FG-220xE, and FG-330xE.

764252

On FG-100F, no event is raised for PSU failure and the diagnostic command is not available.

764483

After restoring the VDOM configuration, Interface <VLAN> not found in the list! is present for VLANs on the aggregate interface.

767778

Kernel panic occurs when adding and deleting LAG members on NP6 models.

Upgrade

Bug ID

Description

725369

After upgrading to 6.4.5, VIP randomly stops working and a find DNAT: IP-0.0.0.0 message appears.

User & Authentication

Bug ID

Description

682394

FortiGate is unable to verify the CA chain of the FSSO server if the chain is not directly rooted to FSSO endpoint.

701356

When a GUI administrator certificate, admin-server-cert, is provisioned via SCEP, the FortiGate does not automatically offer the newly updated certificate to HTTPS clients. FortiOS 7.0.0 and later does not have this issue.

Workaround: manually unset admin-server-cert and set it back to the same certificate.

config system global
    unset admin-server-cert
end
config system global
    set admin-server-cert <scep_certificate>
end

750551

DST_Root_CA_X3 certificate is expired.

Workaround: see the Fortinet PSIRT blog, https://www.fortinet.com/blog/psirt-blogs/fortinet-and-expiring-lets-encrypt-certificates, for more information.

VM

Bug ID

Description

596742

Azure SDN connector replicates configuration from primary device to secondary device during configuration restore.

617046

FG-VMX manager not showing all the nodes deployed.

639258

Autoscale GCP health check is not successful (port 8443 HTTPS).

668625

During every FortiGuard UTM update, there is high CPU usage because only one vCPU is available.

722290

Azure slow path NetVSC SoftNIC has stuck RX.

If using an IPsec tunnel, use UDP/4500 for ESP protocol (instead of IP/50 ) when SR-IOV is enabled. On the phase 1 interface, use set nattraversal forced. UDP/4500 is the fast path for Azure SDN, and IP/50 is the slow path that stresses guest VMs and hypervisors to the extreme.

If using cross-site IPsec data backup, use Azure VNet peering technology to build raw connectivity across the site, rather than using the default IP routing based on the assigned global IP address.

WiFi Controller

Bug ID

Description

662714

The security-redirect-url setting is missing when the portal-type is auth-mac.

677994

Newly discovered and authorized FortiAP will cause HA sync issue. On the HA secondary member, if the WTP profile has a radio in monitor mode, it will be changed to AP mode and unset the band.

Known issues

The following issues have been identified in version 6.4.7. For inquires about a particular bug or to report a bug, please contact Customer Service & Support.

Anti Virus

Bug ID

Description

665173 Crash logs are sometimes truncated/incomplete.

752420

If a .TAR.BZ2 or .TAR.GZ archive contains an archive bomb inside its compressed stream, the AV engine will time out.

Application Control

Bug ID

Description

787130

Application control does not block FTP traffic on an explicit proxy.

FortiView

Bug ID

Description

683654

FortiView pages with FortiAnalyzer source incorrectly display a Failed to retrieve data error on all VDOM views when there is a newly created VDOM that is not yet registered to FortiAnalyzer. The error should only show on the new VDOM view.

GUI

Bug ID

Description

440197

On the System > FortiGuard page, the override FortiGuard server for AntiVirus & IPS Updates shows an Unknown status, even if the server is working correctly. This is a display issue only; the override feature is working properly.

602397

Managed FortiSwitch and FortiSwitch Ports pages are slow to load when there are many managed FortiSwitches. This performance issue needs a fix on both FortiOS and FortiSwitch. A fix was provided in FortiOS 7.0.1 GA and FortiSwitch 7.0.1 GA.

653952

The web page cannot be found is displayed when a dashboard ID no longer exists.

Workaround: load another page in the navigation pane. Once loaded, load the original dashboard page (that displayed the error) again.

688016

GUI interface bandwidth widget does not show correct data for tunnel interface when ASIC offload is enabled on the firewall policy.

695163

When there are a lot of historical logs from FortiAnalyzer, the FortiGate GUI Forward Traffic log page can take time to load if there is no specific filter for the time range.

Workaround: provide a specific time range filter, or use the FortiAnalyzer GUI to view the logs.

699508

When an administrator ends a session by closing the browser, the administrator timeout event is not logged until the next time the administrator logs in.

704618

When login banner is enabled, and a user is forced to re-login to the GUI (due to password enforcement or VDOM enablement), users may see a Bad gateway error and HTTPSD crash.

Workaround: refresh the browser.

713529

When a FortiGate is managed by FortiManager with FortiWLM configured, the HTTPS daemon may crash while processing some FortiWLM API requests. There is no apparent impact on the GUI operation.

735248

On a mobile phone, the WiFi captive portal may take longer to load when the default firewall authentication login template is used and the user authentication type is set to HTTP.

Workaround: edit the login template to disable HTTP authentication or remove the href link to googleapis.

742561

On the Network > Interfaces page, after upgrading to FortiOS 6.4.7, a previously valid VLAN switch VLAN ID of 0 now displays the error message The minimum value is 2.

743477

On the Log & Report > Forward Traffic page, filtering by the Source or Destination column with negation on the IP range does not work.

745325

When creating a new (public or private) SDN connector, users are unable to specify an Update interval that contains 60, as it will automatically switch to Use Default.

745998

An IPsec phase 1 interface with a name that contains a / cannot be deleted from the GUI. The CLI must be used.

763925

GUI shows user as expired after entering a comment in guest management.

HA

Bug ID

Description

779180

FGSP does not synchronize the helper-pmap expectation session.

Intrusion Prevention

Bug ID

Description

654307

Wrong direction and banned location by quarantine action for ICMP.Oversized.Packet in NGFW policy mode.

763736

IPS custom signature logging shows (even after being disabled) after upgrading to FortiOS 6.4.7.

IPsec VPN

Bug ID

Description

726450

Local out dialup IPsec traffic does not match policy-based routes.

Log & Report

Bug ID

Description

745310

Need to add the MIGSOCK send handler to flush the queue when the first item is added to the syslog queue to avoid logs getting stuck.

768626

FortiGate does not send WELF (WebTrends Enhanced Log Format) logs.

769300

Traffic denied by security policy (NGFW policy-based mode) is shown as action="accept" in the traffic log.

Proxy

Bug ID

Description

604681

WAD process with SoC SSL acceleration enabled consumes more memory usage over time, which may lead to conserve mode.

Workaround: disable SoC SSL acceleration under the firewall SSL settings.

712584

WAD memory leak causes device to go into conserve mode.

Routing

Bug ID

Description

745856

The default SD-WAN route for the LTE wwan interface is not created.

Workaround: add a random gateway to the wwan member.

config system sdwan
    config members
        edit 2
            set interface "wwan"
            set gateway 10.198.58.58
            set priority 100
        next
    end
end

748733

Remote IP route shows incomplete inactive in the routing table, which causes issues with BGP routes where the peer is the next hop.

Security Fabric

Bug ID

Description

614691

Slow GUI performance in large Fabric topology with over 50 downstream devices.

SSL VPN

Bug ID

Description

718133

In some conditions, the web mode JavaScript parser will encounter an infinite loop that will cause SSL VPN crashes.

730416

Forward traffic log does not generate logs for HTTP and HTTPS services with SSL VPN web mode.

744494

Memory occupied by the SSL VPN daemon increases significantly while the process is busy.

768994

SSL VPN crashed when closing web mode RDP after upgrading to 6.4.7.

System

Bug ID

Description

555616

When NTurbo is enabled, it is unexpectedly provided with the wrong traffic direction information (from server or from client) to decide the destination for the data. This causes the traffic to be sent back to the port where it came from.

648085

Link status on peer device is not down when the admin port is down on the FortiGate.

681322

TCP 8008 permitted by authd, even though the service in the policy does not include that port.

685674

FortiGate did not restart after restoring the backup configuration via FortiManager after the following process: disable NPU offloading, change NGFW mode from profile-based to policy-based, retrieve configuration from FortiGate via FortiManager, and install the policy package via FortiManager.

687398

Multiple SFPs and FTLX8574D3BCL in multiple FG-1100E units have been flapping intermittently with various devices.

705878

Local certificates could not be saved properly, which caused issues such as not being able to properly restore them with configuration files and causing certificates and keys to be mismatched.

715978

NTurbo does not work with EMAC VLAN interface.

716483

DNS proxy is case sensitive when resolving FQDN, which may cause DNS failure in cases where local DNS forwarder is configured.

724085

Traffic passing through an EMAC VLAN interface when the parent interface is in another VDOM is blocked if NP7 offloading is enabled. If auto-asic-offload is disabled in the firewall policy, then the traffic flows as expected.

728647

DHCP discovery dropped on virtual wire pair when UTM is enabled.

732633

DNS query timeout log generated for first entry in DNS domain list when multiple domains are added.

741944

The forticron process has a memory leak if there are duplicated entries in the external IP range file.

747508

Default FortiLink configuration on FG-81F running versions 6.4.6 to 6.4.8 does not work as expected.

750202

USB unmounts after configuration backup.

751044

There was no sensor trap function and related log on SoC4 platforms.

758815

Connectivity issue on port26 because NP6 table configuration has an incorrect member list. Affected models: FG-110xE, FG-220xE, and FG-330xE.

764252

On FG-100F, no event is raised for PSU failure and the diagnostic command is not available.

764483

After restoring the VDOM configuration, Interface <VLAN> not found in the list! is present for VLANs on the aggregate interface.

767778

Kernel panic occurs when adding and deleting LAG members on NP6 models.

Upgrade

Bug ID

Description

725369

After upgrading to 6.4.5, VIP randomly stops working and a find DNAT: IP-0.0.0.0 message appears.

User & Authentication

Bug ID

Description

682394

FortiGate is unable to verify the CA chain of the FSSO server if the chain is not directly rooted to FSSO endpoint.

701356

When a GUI administrator certificate, admin-server-cert, is provisioned via SCEP, the FortiGate does not automatically offer the newly updated certificate to HTTPS clients. FortiOS 7.0.0 and later does not have this issue.

Workaround: manually unset admin-server-cert and set it back to the same certificate.

config system global
    unset admin-server-cert
end
config system global
    set admin-server-cert <scep_certificate>
end

750551

DST_Root_CA_X3 certificate is expired.

Workaround: see the Fortinet PSIRT blog, https://www.fortinet.com/blog/psirt-blogs/fortinet-and-expiring-lets-encrypt-certificates, for more information.

VM

Bug ID

Description

596742

Azure SDN connector replicates configuration from primary device to secondary device during configuration restore.

617046

FG-VMX manager not showing all the nodes deployed.

639258

Autoscale GCP health check is not successful (port 8443 HTTPS).

668625

During every FortiGuard UTM update, there is high CPU usage because only one vCPU is available.

722290

Azure slow path NetVSC SoftNIC has stuck RX.

If using an IPsec tunnel, use UDP/4500 for ESP protocol (instead of IP/50 ) when SR-IOV is enabled. On the phase 1 interface, use set nattraversal forced. UDP/4500 is the fast path for Azure SDN, and IP/50 is the slow path that stresses guest VMs and hypervisors to the extreme.

If using cross-site IPsec data backup, use Azure VNet peering technology to build raw connectivity across the site, rather than using the default IP routing based on the assigned global IP address.

WiFi Controller

Bug ID

Description

662714

The security-redirect-url setting is missing when the portal-type is auth-mac.

677994

Newly discovered and authorized FortiAP will cause HA sync issue. On the HA secondary member, if the WTP profile has a radio in monitor mode, it will be changed to AP mode and unset the band.