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Table of Contents

Administration Guide

Appendix B - Log Integrity and Secure Log Transfer

This section identifies the options for enabling log integrity and secure log transfer settings between FortiAnalyzer and FortiGate devices.

Log Integrity

FortiAnalyzer can create an MD5 checksum for each log file in order to secure logs from being modified after they have been sent to an analytics platform.

The log integrity setting selected determines the values recorded at the time of transmission or when rolling the log:

  • MD5: Record the log file's MD5 hash value only.
  • MD5-auth: Record the log file's MD5 hash value and authentication code.
  • None: Do not record the log file checksum (default).

Configuring log integrity settings

To configure FortiAnalyzer log integrity:
  1. In the FortiAnalyzer CLI, enter the following commands:

    configure system global

    set log-checksum {md5 | md5-auth | none}

    end

Verifying log-integrity

When log integrity settings are applied, you can view the MD5 checksum for logs in FortiAnalyzer event logs and the FortiAnalyzer CLI.

To view the log file's MD5 checksum in event logs:
  1. Go to FortiSoC > Event Monitor > All Events and select an event log.
  2. In the toolbar, select Display Raw to view the raw log details.
    The MD5 checksum is included in the details of the raw log.

    id=6906469110439837696 itime=2020-12-18 06:47:59 euid=1 epid=1 dsteuid=1 dstepid=1 log_id=0031040026 subtype=logfile type=event level=information time=06:47:59 date=2020-12-18 user=system action=roll msg=Rolled log file tlog.1608270213.log of device FGVM01TM20000000 [FGVM01TM20000000] vdom root, MD5 checksum: ad85f8e889a3436d75b22b4a33c492ec userfrom=system desc=Rolling disk log file devid=FAZVMSTM20000000 devname=FAZVMSTM20000000 dtime=2020-12-18 06:47:59 itime_t=1608270479

To query the log file's MD5 checksum in the CLI:
  1. Enter the following command in the FortiAnalyzer CLI:

    execute log-integrity <device_name> <vdom name> <log_name>

    For example:

    execute log-integrity FGVM01TM20000000 root tlog.1608279204.log.gz

    Integrity checking passed:

    MD5 checksum is [82598ec0086319db73bd0f9de2396047]

Secure Log Transfer

Optimized Fabric Transfer Protocol (OFTP) is a proprietary Fortinet protocol. It is used for connectivity, performing health checks, file transfers, and log display on FortiGate. OFTP listens on ports TCP514 and UDP514.

In the default configuration, there are two communication streams between FortiGate and FortiAnalyzer. OFTP communication is encrypted and log communication is not.

  • OFTP communication occurs on TCP514 using TLS.
  • Log communication occurs on UDP514 (default setting).

To secure log transfer, you can enable TCP and encryption. When enabled, logs are transferred securely between the FortiGate and FortiAnalyzer using TCP514 (TLS).


Configuring secure log transfer settings

To enable secure log transfer:
  1. In the FortiGate CLI, enter the following commands:

    configure log fortianalyzer setting

    set reliable enable

    end

Caution

Enabling secure log transfer over TCP will impact overall logging performance.

Note

OFTP SSL protocol supports SSLv3, TLSv1.0, TLSv1.2, and TLSv1.3 (default TLSv1.2).

Supported ciphers

The list of supported ciphers is determined when configuring enc_algorithm using the configure log fortianalyzer setting command in the FortiGate CLI.

Cipher security levels

FortiAnalyzer allows administrators to specify the security levels for cipher suites as low, medium, or high. Using a higher security level means using more secure ciphers. SSL static key ciphers can be disabled to support forward secrecy.

Defining the enc-algorithm and ssl-static-key-ciphers usage settings in FortiAnalyzer allows administrators to choose which OpenSSL cipher suites are supported.

  • Low enc-algorithm uses all OpenSSL ciphers.
  • Medium enc-algorithm uses high and medium OpenSSL ciphers.
  • High enc-algorithm uses only high OpenSSL ciphers.
  • Disabling ssl-static-key-ciphers enables forward secrecy.
To configure the cipher suite security level in the FortiAnalyzer CLI:
  1. Enter the following command in the FortiAnalyzer CLI:

    config system global

    set enc-algorithm {custom | high | medium | low}

    set ssl-static-key-ciphers {enable | disable}

    end

If enc-algorithm is set to custom, configure the ssl-cipher-suites table to enforce the user specified preferred cipher order in the incoming SSL connections. Enter the following command:

config system global

config ssl-cipher-suites

edit <priority>

set cipher <string>

set version {tls1.2-or-below | tls1.3}

end

If using enc-algorithm is set to high, medium, or low, see the list of supported ciphers based on security level settings below.

ssl-static-key-ciphers enabled

 

enc-algorithm  

 

 

Low

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM:DHE-RSA-AES256-CCM:ECDHE-ECDSA-ARIA256-GCM-SHA384:ECDHE-ARIA256-GCM-SHA384:DHE-DSS-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:RSA-PSK-AES256-GCM-SHA384:DHE-PSK-AES256-GCM-SHA384:RSA-PSK-CHACHA20-POLY1305:DHE-PSK-CHACHA20-POLY1305:ECDHE-PSK-CHACHA20-POLY1305:DHE-PSK-AES256-CCM:RSA-PSK-ARIA256-GCM-SHA384:DHE-PSK-ARIA256-GCM-SHA384:AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:PSK-AES256-GCM-SHA384:PSK-CHACHA20-POLY1305:PSK-AES256-CCM:PSK-ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:ECDHE-PSK-AES256-CBC-SHA384:ECDHE-PSK-AES256-CBC-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:SRP-AES-256-CBC-SHA:RSA-PSK-AES256-CBC-SHA384:DHE-PSK-AES256-CBC-SHA384:RSA-PSK-AES256-CBC-SHA:DHE-PSK-AES256-CBC-SHA:ECDHE-PSK-CAMELLIA256-SHA384:RSA-PSK-CAMELLIA256-SHA384:DHE-PSK-CAMELLIA256-SHA384:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA384:PSK-AES256-CBC-SHA:PSK-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM:DHE-RSA-AES128-CCM:ECDHE-ECDSA-ARIA128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-DSS-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:RSA-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-CCM:RSA-PSK-ARIA128-GCM-SHA256:DHE-PSK-ARIA128-GCM-SHA256:AES128-GCM-SHA256:AES128-CCM:ARIA128-GCM-SHA256:PSK-AES128-GCM-SHA256:PSK-AES128-CCM:PSK-ARIA128-GCM-SHA256:AES128-SHA256:CAMELLIA128-SHA256:ECDHE-PSK-AES128-CBC-SHA256:ECDHE-PSK-AES128-CBC-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:SRP-AES-128-CBC-SHA:RSA-PSK-AES128-CBC-SHA256:DHE-PSK-AES128-CBC-SHA256:RSA-PSK-AES128-CBC-SHA:DHE-PSK-AES128-CBC-SHA:ECDHE-PSK-CAMELLIA128-SHA256:RSA-PSK-CAMELLIA128-SHA256:DHE-PSK-CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:PSK-AES128-CBC-SHA256:PSK-AES128-CBC-SHA:PSK-CAMELLIA128-SHA256:ECDHE-ECDSA-AES256-CCM8:ECDHE-ECDSA-AES128-CCM8:DHE-RSA-AES256-CCM8:DHE-RSA-AES128-CCM8:DHE-PSK-AES256-CCM8:DHE-PSK-AES128-CCM8:AES256-CCM8:AES128-CCM8:PSK-AES256-CCM8:PSK-AES128-CCM8

 

 

Medium

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM:DHE-RSA-AES256-CCM:ECDHE-ECDSA-ARIA256-GCM-SHA384:ECDHE-ARIA256-GCM-SHA384:DHE-DSS-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:RSA-PSK-AES256-GCM-SHA384:DHE-PSK-AES256-GCM-SHA384:RSA-PSK-CHACHA20-POLY1305:DHE-PSK-CHACHA20-POLY1305:ECDHE-PSK-CHACHA20-POLY1305:DHE-PSK-AES256-CCM:RSA-PSK-ARIA256-GCM-SHA384:DHE-PSK-ARIA256-GCM-SHA384:AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:PSK-AES256-GCM-SHA384:PSK-CHACHA20-POLY1305:PSK-AES256-CCM:PSK-ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:ECDHE-PSK-AES256-CBC-SHA384:ECDHE-PSK-AES256-CBC-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:SRP-AES-256-CBC-SHA:RSA-PSK-AES256-CBC-SHA384:DHE-PSK-AES256-CBC-SHA384:RSA-PSK-AES256-CBC-SHA:DHE-PSK-AES256-CBC-SHA:ECDHE-PSK-CAMELLIA256-SHA384:RSA-PSK-CAMELLIA256-SHA384:DHE-PSK-CAMELLIA256-SHA384:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA384:PSK-AES256-CBC-SHA:PSK-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM:DHE-RSA-AES128-CCM:ECDHE-ECDSA-ARIA128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-DSS-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:RSA-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-CCM:RSA-PSK-ARIA128-GCM-SHA256:DHE-PSK-ARIA128-GCM-SHA256:AES128-GCM-SHA256:AES128-CCM:ARIA128-GCM-SHA256:PSK-AES128-GCM-SHA256:PSK-AES128-CCM:PSK-ARIA128-GCM-SHA256:AES128-SHA256:CAMELLIA128-SHA256:ECDHE-PSK-AES128-CBC-SHA256:ECDHE-PSK-AES128-CBC-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:SRP-AES-128-CBC-SHA:RSA-PSK-AES128-CBC-SHA256:DHE-PSK-AES128-CBC-SHA256:RSA-PSK-AES128-CBC-SHA:DHE-PSK-AES128-CBC-SHA:ECDHE-PSK-CAMELLIA128-SHA256:RSA-PSK-CAMELLIA128-SHA256:DHE-PSK-CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:PSK-AES128-CBC-SHA256:PSK-AES128-CBC-SHA:PSK-CAMELLIA128-SHA256:ECDHE-ECDSA-AES256-CCM8:ECDHE-ECDSA-AES128-CCM8:DHE-RSA-AES256-CCM8:DHE-RSA-AES128-CCM8:DHE-PSK-AES256-CCM8:DHE-PSK-AES128-CCM8:AES256-CCM8:AES128-CCM8:PSK-AES256-CCM8:PSK-AES128-CCM8

 

 

High

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM:DHE-RSA-AES256-CCM:ECDHE-ECDSA-ARIA256-GCM-SHA384:ECDHE-ARIA256-GCM-SHA384:DHE-DSS-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:RSA-PSK-AES256-GCM-SHA384:DHE-PSK-AES256-GCM-SHA384:RSA-PSK-CHACHA20-POLY1305:DHE-PSK-CHACHA20-POLY1305:ECDHE-PSK-CHACHA20-POLY1305:DHE-PSK-AES256-CCM:RSA-PSK-ARIA256-GCM-SHA384:DHE-PSK-ARIA256-GCM-SHA384:AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:PSK-AES256-GCM-SHA384:PSK-CHACHA20-POLY1305:PSK-AES256-CCM:PSK-ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:ECDHE-PSK-AES256-CBC-SHA384:ECDHE-PSK-AES256-CBC-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:SRP-AES-256-CBC-SHA:RSA-PSK-AES256-CBC-SHA384:DHE-PSK-AES256-CBC-SHA384:RSA-PSK-AES256-CBC-SHA:DHE-PSK-AES256-CBC-SHA:ECDHE-PSK-CAMELLIA256-SHA384:RSA-PSK-CAMELLIA256-SHA384:DHE-PSK-CAMELLIA256-SHA384:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA384:PSK-AES256-CBC-SHA:PSK-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM:DHE-RSA-AES128-CCM:ECDHE-ECDSA-ARIA128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-DSS-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:RSA-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-CCM:RSA-PSK-ARIA128-GCM-SHA256:DHE-PSK-ARIA128-GCM-SHA256:AES128-GCM-SHA256:AES128-CCM:ARIA128-GCM-SHA256:PSK-AES128-GCM-SHA256:PSK-AES128-CCM:PSK-ARIA128-GCM-SHA256:AES128-SHA256:CAMELLIA128-SHA256:ECDHE-PSK-AES128-CBC-SHA256:ECDHE-PSK-AES128-CBC-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:SRP-AES-128-CBC-SHA:RSA-PSK-AES128-CBC-SHA256:DHE-PSK-AES128-CBC-SHA256:RSA-PSK-AES128-CBC-SHA:DHE-PSK-AES128-CBC-SHA:ECDHE-PSK-CAMELLIA128-SHA256:RSA-PSK-CAMELLIA128-SHA256:DHE-PSK-CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:PSK-AES128-CBC-SHA256:PSK-AES128-CBC-SHA:PSK-CAMELLIA128-SHA256

 

 

fips enabled

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:AES256-SHA:AES256-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:AES128-SHA:AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-AES128-GCM-SHA256

The following ciphers are not available when using forward secrecy (ssl-static-key-ciphers is disabled).

ssl-static-key-ciphers disabled

 

enc-algorithm

 

 

 

Low

AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-GCM-SHA256:AES128-CCM:AES128-SHA256:CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:AES256-CCM8:AES128-CCM8

 

 

Medium

AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-GCM-SHA256:AES128-CCM:AES128-SHA256:CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:AES256-CCM8:AES128-CCM8

 

 

High

AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-GCM-SHA256:AES128-CCM:AES128-SHA256:CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA

 

 

fips enabled

AES256-SHA:AES256-SHA256:AES128-SHA:AES128-SHA256

Appendix B - Log Integrity and Secure Log Transfer

This section identifies the options for enabling log integrity and secure log transfer settings between FortiAnalyzer and FortiGate devices.

Log Integrity

FortiAnalyzer can create an MD5 checksum for each log file in order to secure logs from being modified after they have been sent to an analytics platform.

The log integrity setting selected determines the values recorded at the time of transmission or when rolling the log:

  • MD5: Record the log file's MD5 hash value only.
  • MD5-auth: Record the log file's MD5 hash value and authentication code.
  • None: Do not record the log file checksum (default).

Configuring log integrity settings

To configure FortiAnalyzer log integrity:
  1. In the FortiAnalyzer CLI, enter the following commands:

    configure system global

    set log-checksum {md5 | md5-auth | none}

    end

Verifying log-integrity

When log integrity settings are applied, you can view the MD5 checksum for logs in FortiAnalyzer event logs and the FortiAnalyzer CLI.

To view the log file's MD5 checksum in event logs:
  1. Go to FortiSoC > Event Monitor > All Events and select an event log.
  2. In the toolbar, select Display Raw to view the raw log details.
    The MD5 checksum is included in the details of the raw log.

    id=6906469110439837696 itime=2020-12-18 06:47:59 euid=1 epid=1 dsteuid=1 dstepid=1 log_id=0031040026 subtype=logfile type=event level=information time=06:47:59 date=2020-12-18 user=system action=roll msg=Rolled log file tlog.1608270213.log of device FGVM01TM20000000 [FGVM01TM20000000] vdom root, MD5 checksum: ad85f8e889a3436d75b22b4a33c492ec userfrom=system desc=Rolling disk log file devid=FAZVMSTM20000000 devname=FAZVMSTM20000000 dtime=2020-12-18 06:47:59 itime_t=1608270479

To query the log file's MD5 checksum in the CLI:
  1. Enter the following command in the FortiAnalyzer CLI:

    execute log-integrity <device_name> <vdom name> <log_name>

    For example:

    execute log-integrity FGVM01TM20000000 root tlog.1608279204.log.gz

    Integrity checking passed:

    MD5 checksum is [82598ec0086319db73bd0f9de2396047]

Secure Log Transfer

Optimized Fabric Transfer Protocol (OFTP) is a proprietary Fortinet protocol. It is used for connectivity, performing health checks, file transfers, and log display on FortiGate. OFTP listens on ports TCP514 and UDP514.

In the default configuration, there are two communication streams between FortiGate and FortiAnalyzer. OFTP communication is encrypted and log communication is not.

  • OFTP communication occurs on TCP514 using TLS.
  • Log communication occurs on UDP514 (default setting).

To secure log transfer, you can enable TCP and encryption. When enabled, logs are transferred securely between the FortiGate and FortiAnalyzer using TCP514 (TLS).


Configuring secure log transfer settings

To enable secure log transfer:
  1. In the FortiGate CLI, enter the following commands:

    configure log fortianalyzer setting

    set reliable enable

    end

Caution

Enabling secure log transfer over TCP will impact overall logging performance.

Note

OFTP SSL protocol supports SSLv3, TLSv1.0, TLSv1.2, and TLSv1.3 (default TLSv1.2).

Supported ciphers

The list of supported ciphers is determined when configuring enc_algorithm using the configure log fortianalyzer setting command in the FortiGate CLI.

Cipher security levels

FortiAnalyzer allows administrators to specify the security levels for cipher suites as low, medium, or high. Using a higher security level means using more secure ciphers. SSL static key ciphers can be disabled to support forward secrecy.

Defining the enc-algorithm and ssl-static-key-ciphers usage settings in FortiAnalyzer allows administrators to choose which OpenSSL cipher suites are supported.

  • Low enc-algorithm uses all OpenSSL ciphers.
  • Medium enc-algorithm uses high and medium OpenSSL ciphers.
  • High enc-algorithm uses only high OpenSSL ciphers.
  • Disabling ssl-static-key-ciphers enables forward secrecy.
To configure the cipher suite security level in the FortiAnalyzer CLI:
  1. Enter the following command in the FortiAnalyzer CLI:

    config system global

    set enc-algorithm {custom | high | medium | low}

    set ssl-static-key-ciphers {enable | disable}

    end

If enc-algorithm is set to custom, configure the ssl-cipher-suites table to enforce the user specified preferred cipher order in the incoming SSL connections. Enter the following command:

config system global

config ssl-cipher-suites

edit <priority>

set cipher <string>

set version {tls1.2-or-below | tls1.3}

end

If using enc-algorithm is set to high, medium, or low, see the list of supported ciphers based on security level settings below.

ssl-static-key-ciphers enabled

 

enc-algorithm  

 

 

Low

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM:DHE-RSA-AES256-CCM:ECDHE-ECDSA-ARIA256-GCM-SHA384:ECDHE-ARIA256-GCM-SHA384:DHE-DSS-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:RSA-PSK-AES256-GCM-SHA384:DHE-PSK-AES256-GCM-SHA384:RSA-PSK-CHACHA20-POLY1305:DHE-PSK-CHACHA20-POLY1305:ECDHE-PSK-CHACHA20-POLY1305:DHE-PSK-AES256-CCM:RSA-PSK-ARIA256-GCM-SHA384:DHE-PSK-ARIA256-GCM-SHA384:AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:PSK-AES256-GCM-SHA384:PSK-CHACHA20-POLY1305:PSK-AES256-CCM:PSK-ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:ECDHE-PSK-AES256-CBC-SHA384:ECDHE-PSK-AES256-CBC-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:SRP-AES-256-CBC-SHA:RSA-PSK-AES256-CBC-SHA384:DHE-PSK-AES256-CBC-SHA384:RSA-PSK-AES256-CBC-SHA:DHE-PSK-AES256-CBC-SHA:ECDHE-PSK-CAMELLIA256-SHA384:RSA-PSK-CAMELLIA256-SHA384:DHE-PSK-CAMELLIA256-SHA384:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA384:PSK-AES256-CBC-SHA:PSK-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM:DHE-RSA-AES128-CCM:ECDHE-ECDSA-ARIA128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-DSS-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:RSA-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-CCM:RSA-PSK-ARIA128-GCM-SHA256:DHE-PSK-ARIA128-GCM-SHA256:AES128-GCM-SHA256:AES128-CCM:ARIA128-GCM-SHA256:PSK-AES128-GCM-SHA256:PSK-AES128-CCM:PSK-ARIA128-GCM-SHA256:AES128-SHA256:CAMELLIA128-SHA256:ECDHE-PSK-AES128-CBC-SHA256:ECDHE-PSK-AES128-CBC-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:SRP-AES-128-CBC-SHA:RSA-PSK-AES128-CBC-SHA256:DHE-PSK-AES128-CBC-SHA256:RSA-PSK-AES128-CBC-SHA:DHE-PSK-AES128-CBC-SHA:ECDHE-PSK-CAMELLIA128-SHA256:RSA-PSK-CAMELLIA128-SHA256:DHE-PSK-CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:PSK-AES128-CBC-SHA256:PSK-AES128-CBC-SHA:PSK-CAMELLIA128-SHA256:ECDHE-ECDSA-AES256-CCM8:ECDHE-ECDSA-AES128-CCM8:DHE-RSA-AES256-CCM8:DHE-RSA-AES128-CCM8:DHE-PSK-AES256-CCM8:DHE-PSK-AES128-CCM8:AES256-CCM8:AES128-CCM8:PSK-AES256-CCM8:PSK-AES128-CCM8

 

 

Medium

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM:DHE-RSA-AES256-CCM:ECDHE-ECDSA-ARIA256-GCM-SHA384:ECDHE-ARIA256-GCM-SHA384:DHE-DSS-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:RSA-PSK-AES256-GCM-SHA384:DHE-PSK-AES256-GCM-SHA384:RSA-PSK-CHACHA20-POLY1305:DHE-PSK-CHACHA20-POLY1305:ECDHE-PSK-CHACHA20-POLY1305:DHE-PSK-AES256-CCM:RSA-PSK-ARIA256-GCM-SHA384:DHE-PSK-ARIA256-GCM-SHA384:AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:PSK-AES256-GCM-SHA384:PSK-CHACHA20-POLY1305:PSK-AES256-CCM:PSK-ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:ECDHE-PSK-AES256-CBC-SHA384:ECDHE-PSK-AES256-CBC-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:SRP-AES-256-CBC-SHA:RSA-PSK-AES256-CBC-SHA384:DHE-PSK-AES256-CBC-SHA384:RSA-PSK-AES256-CBC-SHA:DHE-PSK-AES256-CBC-SHA:ECDHE-PSK-CAMELLIA256-SHA384:RSA-PSK-CAMELLIA256-SHA384:DHE-PSK-CAMELLIA256-SHA384:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA384:PSK-AES256-CBC-SHA:PSK-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM:DHE-RSA-AES128-CCM:ECDHE-ECDSA-ARIA128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-DSS-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:RSA-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-CCM:RSA-PSK-ARIA128-GCM-SHA256:DHE-PSK-ARIA128-GCM-SHA256:AES128-GCM-SHA256:AES128-CCM:ARIA128-GCM-SHA256:PSK-AES128-GCM-SHA256:PSK-AES128-CCM:PSK-ARIA128-GCM-SHA256:AES128-SHA256:CAMELLIA128-SHA256:ECDHE-PSK-AES128-CBC-SHA256:ECDHE-PSK-AES128-CBC-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:SRP-AES-128-CBC-SHA:RSA-PSK-AES128-CBC-SHA256:DHE-PSK-AES128-CBC-SHA256:RSA-PSK-AES128-CBC-SHA:DHE-PSK-AES128-CBC-SHA:ECDHE-PSK-CAMELLIA128-SHA256:RSA-PSK-CAMELLIA128-SHA256:DHE-PSK-CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:PSK-AES128-CBC-SHA256:PSK-AES128-CBC-SHA:PSK-CAMELLIA128-SHA256:ECDHE-ECDSA-AES256-CCM8:ECDHE-ECDSA-AES128-CCM8:DHE-RSA-AES256-CCM8:DHE-RSA-AES128-CCM8:DHE-PSK-AES256-CCM8:DHE-PSK-AES128-CCM8:AES256-CCM8:AES128-CCM8:PSK-AES256-CCM8:PSK-AES128-CCM8

 

 

High

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-DSS-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-CCM:DHE-RSA-AES256-CCM:ECDHE-ECDSA-ARIA256-GCM-SHA384:ECDHE-ARIA256-GCM-SHA384:DHE-DSS-ARIA256-GCM-SHA384:DHE-RSA-ARIA256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA256:ECDHE-ECDSA-CAMELLIA256-SHA384:ECDHE-RSA-CAMELLIA256-SHA384:DHE-RSA-CAMELLIA256-SHA256:DHE-DSS-CAMELLIA256-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:DHE-RSA-CAMELLIA256-SHA:DHE-DSS-CAMELLIA256-SHA:RSA-PSK-AES256-GCM-SHA384:DHE-PSK-AES256-GCM-SHA384:RSA-PSK-CHACHA20-POLY1305:DHE-PSK-CHACHA20-POLY1305:ECDHE-PSK-CHACHA20-POLY1305:DHE-PSK-AES256-CCM:RSA-PSK-ARIA256-GCM-SHA384:DHE-PSK-ARIA256-GCM-SHA384:AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:PSK-AES256-GCM-SHA384:PSK-CHACHA20-POLY1305:PSK-AES256-CCM:PSK-ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:ECDHE-PSK-AES256-CBC-SHA384:ECDHE-PSK-AES256-CBC-SHA:SRP-DSS-AES-256-CBC-SHA:SRP-RSA-AES-256-CBC-SHA:SRP-AES-256-CBC-SHA:RSA-PSK-AES256-CBC-SHA384:DHE-PSK-AES256-CBC-SHA384:RSA-PSK-AES256-CBC-SHA:DHE-PSK-AES256-CBC-SHA:ECDHE-PSK-CAMELLIA256-SHA384:RSA-PSK-CAMELLIA256-SHA384:DHE-PSK-CAMELLIA256-SHA384:AES256-SHA:CAMELLIA256-SHA:PSK-AES256-CBC-SHA384:PSK-AES256-CBC-SHA:PSK-CAMELLIA256-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-CCM:DHE-RSA-AES128-CCM:ECDHE-ECDSA-ARIA128-GCM-SHA256:ECDHE-ARIA128-GCM-SHA256:DHE-DSS-ARIA128-GCM-SHA256:DHE-RSA-ARIA128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:DHE-DSS-AES128-SHA256:ECDHE-ECDSA-CAMELLIA128-SHA256:ECDHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA256:DHE-DSS-CAMELLIA128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:DHE-RSA-CAMELLIA128-SHA:DHE-DSS-CAMELLIA128-SHA:RSA-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-GCM-SHA256:DHE-PSK-AES128-CCM:RSA-PSK-ARIA128-GCM-SHA256:DHE-PSK-ARIA128-GCM-SHA256:AES128-GCM-SHA256:AES128-CCM:ARIA128-GCM-SHA256:PSK-AES128-GCM-SHA256:PSK-AES128-CCM:PSK-ARIA128-GCM-SHA256:AES128-SHA256:CAMELLIA128-SHA256:ECDHE-PSK-AES128-CBC-SHA256:ECDHE-PSK-AES128-CBC-SHA:SRP-DSS-AES-128-CBC-SHA:SRP-RSA-AES-128-CBC-SHA:SRP-AES-128-CBC-SHA:RSA-PSK-AES128-CBC-SHA256:DHE-PSK-AES128-CBC-SHA256:RSA-PSK-AES128-CBC-SHA:DHE-PSK-AES128-CBC-SHA:ECDHE-PSK-CAMELLIA128-SHA256:RSA-PSK-CAMELLIA128-SHA256:DHE-PSK-CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:PSK-AES128-CBC-SHA256:PSK-AES128-CBC-SHA:PSK-CAMELLIA128-SHA256

 

 

fips enabled

TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256:TLS_AES_128_GCM_SHA256:AES256-SHA:AES256-SHA256:DHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA256:ECDHE-RSA-AES256-SHA:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-ECDSA-AES256-GCM-SHA384:AES128-SHA:AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-ECDSA-AES128-GCM-SHA256

The following ciphers are not available when using forward secrecy (ssl-static-key-ciphers is disabled).

ssl-static-key-ciphers disabled

 

enc-algorithm

 

 

 

Low

AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-GCM-SHA256:AES128-CCM:AES128-SHA256:CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:AES256-CCM8:AES128-CCM8

 

 

Medium

AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-GCM-SHA256:AES128-CCM:AES128-SHA256:CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA:AES256-CCM8:AES128-CCM8

 

 

High

AES256-GCM-SHA384:AES256-CCM:ARIA256-GCM-SHA384:AES256-SHA256:CAMELLIA256-SHA256:AES256-SHA:CAMELLIA256-SHA:AES128-GCM-SHA256:AES128-CCM:AES128-SHA256:CAMELLIA128-SHA256:AES128-SHA:CAMELLIA128-SHA

 

 

fips enabled

AES256-SHA:AES256-SHA256:AES128-SHA:AES128-SHA256