{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2019-17659",
        "assignerOrgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
        "state": "PUBLISHED",
        "assignerShortName": "fortinet",
        "dateReserved": "2019-10-16T00:00:00.000Z",
        "datePublished": "2025-03-17T13:06:07.828Z",
        "dateUpdated": "2025-03-17T13:35:08.816Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "vendor": "Fortinet",
                    "product": "FortiSIEM",
                    "cpes": [],
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "5.2.6",
                            "status": "affected"
                        }
                    ]
                }
            ],
            "descriptions": [
                {
                    "lang": "en",
                    "value": "A use of hard-coded cryptographic key vulnerability in FortiSIEM version 5.2.6 may allow a remote unauthenticated attacker to obtain SSH access to the supervisor as the restricted user \"tunneluser\" by leveraging knowledge of the private key from another installation or a firmware image."
                }
            ],
            "providerMetadata": {
                "orgId": "6abe59d8-c742-4dff-8ce8-9b0ca1073da8",
                "shortName": "fortinet",
                "dateUpdated": "2025-03-17T13:06:07.828Z"
            },
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "lang": "en",
                            "cweId": "CWE-798",
                            "description": "Improper access control",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "format": "CVSS",
                    "cvssV3_1": {
                        "version": "3.1",
                        "attackComplexity": "HIGH",
                        "attackVector": "NETWORK",
                        "availabilityImpact": "LOW",
                        "baseScore": 3.6,
                        "baseSeverity": "LOW",
                        "confidentialityImpact": "NONE",
                        "integrityImpact": "NONE",
                        "privilegesRequired": "NONE",
                        "scope": "UNCHANGED",
                        "userInteraction": "NONE",
                        "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:F/RL:X/RC:X"
                    }
                }
            ],
            "solutions": [
                {
                    "lang": "en",
                    "value": "Please upgrade to FortiSIEM version 5.2.7 and above where this issue is resolved. \r\nWorkaround (for FortiSIEM version 5.2.6 and lower): \r\nCustomers who are not using the reverse tunnel feature are advised to disable SSH service on port 19999  by following the steps below :\r\n1. SSH to the Supervisor node as the root user.\r\n2. Remove tunneluser SSH configuration file to disable listening on port 19999:\r\nrm -f /etc/ssh/sshd_config.tunneluser\r\necho rm -f /etc/ssh/sshd_config.tunneluser >> /etc/init.d/phProvision.sh\r\n3. Then terminate sshd running on TCP Port 19999 as follows:\r\npkill -f /usr/sbin/sshd -p 19999\r\n4.Additional steps can be performed on Supervisor to remove the keys associated with tunneluser account:\r\nrm -f /opt/phoenix/deployment/id_rsa.pub.tunneluser\r\nrm -f /home/tunneluser/.ssh/authorized_keys\r\nrm -f /opt/phoenix/id_rsa.tunneluser ~admin/.ssh/id_rsa\r\nCustomers are also advised to disable \"tunneluser\" SSH access on port 22 by following the steps bwlow:\r\n1. SSH to the Supervisor node as the root user.\r\n2. Add/edit the following line in sshd_config file: \r\necho DenyUsers tunneluser >>  /etc/ssh/sshd_config\r\n3. service sshd restart"
                }
            ],
            "references": [
                {
                    "name": "https://fortiguard.fortinet.com/psirt/FG-IR-19-296",
                    "url": "https://fortiguard.fortinet.com/psirt/FG-IR-19-296"
                }
            ]
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2025-03-17T13:35:01.135210Z",
                                "id": "CVE-2019-17659",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2025-03-17T13:35:08.816Z"
                }
            }
        ]
    }
}