{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2021-45046",
        "ASSIGNER": "security@apache.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "It was found that the fix to address CVE-2021-44228 in Apache Log4j 2.15.0 was incomplete in certain non-default configurations. This could allows attackers with control over Thread Context Map (MDC) input data when the logging configuration uses a non-default Pattern Layout with either a Context Lookup (for example, $${ctx:loginId}) or a Thread Context Map pattern (%X, %mdc, or %MDC) to craft malicious input data using a JNDI Lookup pattern resulting in an information leak and remote code execution in some environments and local code execution in all environments. Log4j 2.16.0 (Java 8) and 2.12.2 (Java 7) fix this issue by removing support for message lookup patterns and disabling JNDI functionality by default."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "CWE-917 Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')",
                        "cweId": "CWE-917"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Apache Software Foundation",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache Log4j",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "Apache Log4j2",
                                            "version_value": "2.16.0"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032",
                "refsource": "MISC",
                "name": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0032"
            },
            {
                "url": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/alert-cve-2021-44228.html"
            },
            {
                "url": "https://www.cve.org/CVERecord?id=CVE-2021-44228",
                "refsource": "MISC",
                "name": "https://www.cve.org/CVERecord?id=CVE-2021-44228"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2021/12/14/4",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2021/12/14/4"
            },
            {
                "url": "https://logging.apache.org/log4j/2.x/security.html",
                "refsource": "MISC",
                "name": "https://logging.apache.org/log4j/2.x/security.html"
            },
            {
                "url": "https://www.kb.cert.org/vuls/id/930724",
                "refsource": "MISC",
                "name": "https://www.kb.cert.org/vuls/id/930724"
            },
            {
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf",
                "refsource": "MISC",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-661247.pdf"
            },
            {
                "url": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html",
                "refsource": "MISC",
                "name": "https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00646.html"
            },
            {
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd",
                "refsource": "MISC",
                "name": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-log4j-qRuKNEbd"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2021/12/15/3",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2021/12/15/3"
            },
            {
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf",
                "refsource": "MISC",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-714170.pdf"
            },
            {
                "url": "https://www.debian.org/security/2021/dsa-5022",
                "refsource": "MISC",
                "name": "https://www.debian.org/security/2021/dsa-5022"
            },
            {
                "url": "http://www.openwall.com/lists/oss-security/2021/12/18/1",
                "refsource": "MISC",
                "name": "http://www.openwall.com/lists/oss-security/2021/12/18/1"
            },
            {
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf",
                "refsource": "MISC",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-397453.pdf"
            },
            {
                "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf",
                "refsource": "MISC",
                "name": "https://cert-portal.siemens.com/productcert/pdf/ssa-479842.pdf"
            },
            {
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/",
                "refsource": "MISC",
                "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EOKPQGV24RRBBI4TBZUDQMM4MEH7MXCY/"
            },
            {
                "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/",
                "refsource": "MISC",
                "name": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SIG7FZULMNK2XF6FZRU4VWYDQXNMUGAJ/"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujul2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujul2022.html"
            },
            {
                "url": "https://security.gentoo.org/glsa/202310-16",
                "refsource": "MISC",
                "name": "https://security.gentoo.org/glsa/202310-16"
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "source": {
        "discovery": "UNKNOWN"
    }
}