cvelist/2017/12xxx/CVE-2017-12635.json

{
   "CVE_data_meta" : {
      "ASSIGNER" : "security@apache.org",
      "DATE_PUBLIC" : "2017-11-14T00:00:00",
      "ID" : "CVE-2017-12635",
      "STATE" : "PUBLIC"
   },
   "affects" : {
      "vendor" : {
         "vendor_data" : [
            {
               "product" : {
                  "product_data" : [
                     {
                        "product_name" : "CouchDB",
                        "version" : {
                           "version_data" : [
                              {
                                 "version_value" : "1.2.0 to 1.6.1"
                              },
                              {
                                 "version_value" : "2.0.0 to 2.1.0"
                              }
                           ]
                        }
                     }
                  ]
               },
               "vendor_name" : "Apache Software Foundation"
            }
         ]
      }
   },
   "data_format" : "MITRE",
   "data_type" : "CVE",
   "data_version" : "4.0",
   "description" : {
      "description_data" : [
         {
            "lang" : "eng",
            "value" : "Due to differences in CouchDB's Erlang-based JSON parser and JavaScript-based JSON parser, it is possible to submit _users documents with duplicate keys for `roles` used for access control within the database, including the special case `_admin` role, that denotes administrative users. In combination with `CVE-2017-12636` (Remote Code Execution), this can be used to give non-admin users access to arbitrary shell commands on the server as the database system user. The JSON parser differences result in behaviour that if two `roles` keys are available in the JSON, the second one will be used for authorising the document write, but the first `roles` key is used for subsequent authorization for the newly created user. By design, users can not assign themselves roles. The vulnerability allows non-admin users to give themselves admin privileges."
         }
      ]
   },
   "problemtype" : {
      "problemtype_data" : [
         {
            "description" : [
               {
                  "lang" : "eng",
                  "value" : "Information Disclosure"
               }
            ]
         }
      ]
   },
   "references" : {
      "reference_data" : [
         {
            "url" : "https://lists.apache.org/thread.html/6c405bf3f8358e6314076be9f48c89a2e0ddf00539906291ebdf0c67@%3Cdev.couchdb.apache.org%3E"
         }
      ]
   }
}