{
   "CVE_data_meta" : {
      "ASSIGNER" : "sirt@juniper.net",
      "DATE_PUBLIC" : "2018-10-10T16:00:00.000Z",
      "ID" : "CVE-2018-0057",
      "STATE" : "PUBLIC",
      "TITLE" : "Junos OS: authd allows assignment of IP address requested by DHCP subscriber logging in with Option 50 (Requested IP Address)"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "Junos OS",
                        "version" : {
                           "version_data" : [
                              {
                                 "affected" : "<",
                                 "version_name" : "15.1",
                                 "version_value" : "15.1R7-S2, 15.1R8"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "16.1",
                                 "version_value" : "16.1R4-S12, 16.1R7-S2, 16.1R8"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "16.2",
                                 "version_value" : "16.2R2-S7, 16.2R3"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "17.1",
                                 "version_value" : "17.1R2-S9, 17.1R3"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "17.2",
                                 "version_value" : "17.2R1-S7, 17.2R2-S6, 17.2R3"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "17.3",
                                 "version_value" : "17.3R2-S4, 17.3R3"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "17.4",
                                 "version_value" : "17.4R2"
                              },
                              {
                                 "affected" : "<",
                                 "version_name" : "18.1",
                                 "version_value" : "18.1R2-S3, 18.1R3"
                              }
                           ]
                        }
                     }
                  ]
               },
               "vendor_name" : "Juniper Networks"
            }
         ]
      }
   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "On MX Series and M120/M320 platforms configured in a Broadband Edge (BBE) environment, subscribers logging in with DHCP Option 50 to request a specific IP address will be assigned the requested IP address, even if there is a static MAC to IP address binding in the access profile. In the problem scenario, with a hardware-address and IP address configured under address-assignment pool, if a subscriber logging in with DHCP Option 50, the subscriber will not be assigned an available address from the matched pool, but will still get the requested IP address. A malicious DHCP subscriber may be able to utilize this vulnerability to create duplicate IP address assignments, leading to a denial of service for valid subscribers or unauthorized information disclosure via IP address assignment spoofing. Affected releases are Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S2, 15.1R8; 16.1 versions prior to 16.1R4-S12, 16.1R7-S2, 16.1R8; 16.2 versions prior to 16.2R2-S7, 16.2R3; 17.1 versions prior to 17.1R2-S9, 17.1R3; 17.2 versions prior to 17.2R1-S7, 17.2R2-S6, 17.2R3; 17.3 versions prior to 17.3R2-S4, 17.3R3; 17.4 versions prior to 17.4R2; 18.1 versions prior to 18.1R2-S3, 18.1R3."
         }
      ]
   },
   "exploit" : [
      {
         "lang" : "eng",
         "value" : "Juniper SIRT is not aware of any malicious exploitation of this vulnerability."
      }
   ],
   "impact" : {
      "cvss" : {
         "attackComplexity" : "LOW",
         "attackVector" : "ADJACENT_NETWORK",
         "availabilityImpact" : "LOW",
         "baseScore" : 6.1,
         "baseSeverity" : "MEDIUM",
         "confidentialityImpact" : "LOW",
         "integrityImpact" : "NONE",
         "privilegesRequired" : "NONE",
         "scope" : "CHANGED",
         "userInteraction" : "NONE",
         "vectorString" : "CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:L",
         "version" : "3.0"
      }
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "Information disclosure"
               }
            ]
         },
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "Denial of service"
               }
            ]
         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "name" : "https://kb.juniper.net/JSA10892",
            "refsource" : "CONFIRM",
            "url" : "https://kb.juniper.net/JSA10892"
         }
      ]
   },
   "solution" : [
      {
         "lang" : "eng",
         "value" : "The following software releases have been updated to resolve this specific issue: 15.1R7-S2, 15.1R8, 16.1R4-S12, 16.1R7-S2, 16.1R8, 16.2R2-S7, 16.2R3, 17.1R2-S9, 17.1R3, 17.2R1-S7, 17.2R2-S6, 17.2R3, 17.3R2-S4, 17.3R3, 17.4R2, 18.1R2-S3, 18.1R3, 18.2R1, 18.3R1, and all subsequent releases.\n"
      }
   ],
   "source" : {
      "advisory" : "JSA10892",
      "defect" : [
         "1351334"
      ],
      "discovery" : "USER"
   },
   "work_around" : [
      {
         "lang" : "eng",
         "value" : "There are no viable workarounds for this issue"
      }
   ]
}