cvelist/2021/33xxx/CVE-2021-33193.json

{
    "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2021-33193",
        "STATE": "PUBLIC",
        "TITLE": "Request splitting via HTTP/2 method injection and mod_proxy"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Apache HTTP Server",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_name": "Apache HTTP Server 2.4",
                                            "version_value": "2.4.17 to 2.4.48"
                                        }
                                    ]
                                }
                            }
                        ]
                    },
                    "vendor_name": "Apache Software Foundation"
                }
            ]
        }
    },
    "credit": [
        {
            "lang": "eng",
            "value": "Reported by James Kettle of PortSwigger"
        }
    ],
    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A crafted method sent through HTTP/2 will bypass validation and be forwarded by mod_proxy, which can lead to request splitting or cache poisoning. This issue affects Apache HTTP Server 2.4.17 to 2.4.48."
            }
        ]
    },
    "generator": {
        "engine": "Vulnogram 0.0.9"
    },
    "impact": [
        {
            "other": "moderate"
        }
    ],
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "Request Splitting"
                    }
                ]
            }
        ]
    },
    "references": {
        "reference_data": [
            {
                "refsource": "MISC",
                "url": "https://portswigger.net/research/http2",
                "name": "https://portswigger.net/research/http2"
            },
            {
                "refsource": "MISC",
                "url": "https://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patch",
                "name": "https://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patch"
            },
            {
                "refsource": "MLIST",
                "name": "[httpd-cvs] 20210916 [httpd-site] branch main updated: Revert \"Add descriptions for CVE-2021-33193 CVE-2021-36160\"",
                "url": "https://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d@%3Ccvs.httpd.apache.org%3E"
            },
            {
                "refsource": "MLIST",
                "name": "[httpd-cvs] 20210916 [httpd-site] branch main updated: Add descriptions for CVE-2021-33193 CVE-2021-36160",
                "url": "https://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70@%3Ccvs.httpd.apache.org%3E"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-5d2d4b6ac5",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/"
            },
            {
                "refsource": "FEDORA",
                "name": "FEDORA-2021-f94985afca",
                "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/"
            },
            {
                "refsource": "CISCO",
                "name": "20211124 Multiple Vulnerabilities in Apache HTTP Server Affecting Cisco Products: November 2021",
                "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpujan2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpujan2022.html"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20210917-0004/",
                "url": "https://security.netapp.com/advisory/ntap-20210917-0004/"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://www.tenable.com/security/tns-2021-17",
                "url": "https://www.tenable.com/security/tns-2021-17"
            },
            {
                "url": "https://www.oracle.com/security-alerts/cpuapr2022.html",
                "refsource": "MISC",
                "name": "https://www.oracle.com/security-alerts/cpuapr2022.html"
            }
        ]
    },
    "source": {
        "discovery": "UNKNOWN"
    },
    "timeline": [
        {
            "lang": "eng",
            "time": "2021-05-11",
            "value": "reported"
        },
        {
            "lang": "eng",
            "time": "2021-08-06",
            "value": "public"
        }
    ]
}