{
    "CVE_data_meta": {
        "ASSIGNER": "sirt@juniper.net",
        "DATE_PUBLIC": "2019-04-10T16:00:00.000Z",
        "ID": "CVE-2019-0039",
        "STATE": "PUBLIC",
        "TITLE": "Junos OS: Login credentials are vulnerable to brute force attacks through the REST API"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Junos OS",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "14.1X53",
                                            "version_value": "14.1X53-D49"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "15.1",
                                            "version_value": "15.1F6-S12, 15.1R7-S3"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "15.1X49",
                                            "version_value": "15.1X49-D160"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "15.1X53",
                                            "version_value": "15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1X53-D69"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "16.1",
                                            "version_value": "16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "16.1X65",
                                            "version_value": "16.1X65-D49"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "16.2",
                                            "version_value": "16.2R2-S7"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "17.1",
                                            "version_value": "17.1R2-S10, 17.1R3"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "17.2",
                                            "version_value": "17.2R1-S8, 17.2R3-S1"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "17.3",
                                            "version_value": "17.3R3-S2"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "17.4",
                                            "version_value": "17.4R1-S6, 17.4R2-S2"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "18.1",
                                            "version_value": "18.1R2-S4, 18.1R3-S1"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "18.2",
                                            "version_value": "18.2R1-S5"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "18.2X75",
                                            "version_value": "18.2X75-D30"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "18.3",
                                            "version_value": "18.3R1-S1"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Juniper Networks"
                }
            ]
        }
    },
    "configuration": [
        {
            "lang": "eng",
            "value": "The REST API can be enabled using the following configuration option:\n\n  system services rest http\n  system services rest enable-explorer "
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "If REST API is enabled, the Junos OS login credentials are vulnerable to brute force attacks. The high default connection limit of the REST API may allow an attacker to brute-force passwords using advanced scripting techniques. Additionally, administrators who do not enforce a strong password policy can increase the likelihood of success from brute force attacks. Affected releases are Juniper Networks Junos OS: 14.1X53 versions prior to 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S3; 15.1X49 versions prior to 15.1X49-D160; 15.1X53 versions prior to 15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1X53-D69; 16.1 versions prior to 16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3; 16.1X65 versions prior to 16.1X65-D49; 16.2 versions prior to 16.2R2-S7; 17.1 versions prior to 17.1R2-S10, 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R3-S1; 17.3 versions prior to 17.3R3-S2; 17.4 versions prior to 17.4R1-S6, 17.4R2-S2; 18.1 versions prior to 18.1R2-S4, 18.1R3-S1; 18.2 versions prior to 18.2R1-S5; 18.2X75 versions prior to 18.2X75-D30; 18.3 versions prior to 18.3R1-S1."
            }
        ]
    },
    "exploit": [
        {
            "lang": "eng",
            "value": "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
        }
    ],
    "generator": {
        "engine": "Vulnogram 0.0.6"
    },
    "impact": {
        "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.0"
        }
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-307 Improper Restriction of Excessive Authentication Attempts"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "https://kb.juniper.net/JSA10928",
                "refsource": "CONFIRM",
                "url": "https://kb.juniper.net/JSA10928"
            },
            {
                "refsource": "BID",
                "name": "107899",
                "url": "http://www.securityfocus.com/bid/107899"
            }
        ]
    },
    "solution": [
        {
            "lang": "eng",
            "value": "The following software releases have been updated to resolve this specific issue: Junos OS 14.1X53-D49, 15.1F6-S12, 15.1R7-S3, 15.1X49-D160, 15.1X53-D236, 15.1X53-D495, 15.1X53-D591, 15.1X53-D69, 16.1R3-S10, 16.1R4-S12, 16.1R6-S6, 16.1R7-S3, 16.1X65-D49, 16.2R2-S7, 17.1R2-S10, 17.1R3, 17.2R1-S8, 17.2R3-S1, 17.3R3-S2, 17.4R1-S6, 17.4R2-S2, 18.1R2-S4, 18.1R3-S1, 18.2R1-S5, 18.2X75-D30, 18.3R1-S1, 18.4R1, and all subsequent releases.\n"
        }
    ],
    "source": {
        "advisory": "JSA10928",
        "defect": [
            "1289313"
        ],
        "discovery": "INTERNAL"
    },
    "work_around": [
        {
            "lang": "eng",
            "value": "Setting a connection limit on REST API may help mitigate this issue.\n  set system services rest control connection-limit 100 \n\nUse access lists or firewall filters to limit API access to the device only from trusted hosts.\n"
        }
    ]
}