{
    "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "DATE_PUBLIC": "2018-09-21T00:00:00",
        "ID": "CVE-2018-8023",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache Mesos",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "versions prior to 1.4.2"
                                        },
                                        {
                                            "version_value": "1.5.0, 1.5.1"
                                        },
                                        {
                                            "version_value": "1.6.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Apache Software Foundation"
                }
            ]
        }
    },
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "Apache Mesos can be configured to require authentication to call the Executor HTTP API using JSON Web Token (JWT). In Apache Mesos versions pre-1.4.2, 1.5.0, 1.5.1, 1.6.0 the comparison of the generated HMAC value against the provided signature in the JWT implementation used is vulnerable to a timing attack because instead of a constant-time string comparison routine a standard `==` operator has been used. A malicious actor can therefore abuse the timing difference of when the JWT validation function returns to reveal the correct HMAC value."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Information Disclosure"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "name": "[dev] 20180921 CVE-2018-8023: A remote attacker can exploit a vulnerability in the JWT implementation to gain unauthenticated access to Mesos Executor HTTP API.",
                "refsource": "MLIST",
                "url": "https://lists.apache.org/thread.html/9b9d3f6bd09f3ebd2284b82077033bdc71da550a1c4c010c2494acc3@%3Cdev.mesos.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[flink-user] 20201022 Dependency vulnerabilities with flink 1.11.1 version",
                "url": "https://lists.apache.org/thread.html/r0dd7ff197b2e3bdd80a0326587ca3d0c22e10d1dba17c769d6da7d7a@%3Cuser.flink.apache.org%3E"
            }
        ]
    }
}