fkie_cve-2021-33193
Vulnerability from fkie_nvd
Published
2021-08-16 08:15
Modified
2024-11-21 06:08
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
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.
References
security@apache.orghttps://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patchPatch, Third Party Advisory
security@apache.orghttps://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70%40%3Ccvs.httpd.apache.org%3E
security@apache.orghttps://lists.debian.org/debian-lts-announce/2023/03/msg00002.html
security@apache.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/
security@apache.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/
security@apache.orghttps://portswigger.net/research/http2Exploit, Third Party Advisory
security@apache.orghttps://security.gentoo.org/glsa/202208-20Third Party Advisory
security@apache.orghttps://security.netapp.com/advisory/ntap-20210917-0004/Third Party Advisory
security@apache.orghttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQThird Party Advisory
security@apache.orghttps://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
security@apache.orghttps://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
security@apache.orghttps://www.tenable.com/security/tns-2021-17Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patchPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70%40%3Ccvs.httpd.apache.org%3E
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2023/03/msg00002.html
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/
af854a3a-2127-422b-91ae-364da2661108https://portswigger.net/research/http2Exploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202208-20Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20210917-0004/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQThird Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.oracle.com/security-alerts/cpujan2022.htmlPatch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.tenable.com/security/tns-2021-17Third Party Advisory
Impacted products
Vendor Product Version
apache http_server *
fedoraproject fedora 34
fedoraproject fedora 35
tenable tenable.sc *
oracle secure_backup *
oracle zfs_storage_appliance_kit 8.8


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "C700D9C3-7023-48A7-8A76-70597D99829E",
                     versionEndIncluding: "2.4.48",
                     versionStartIncluding: "2.4.17",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                     matchCriteriaId: "A930E247-0B43-43CB-98FF-6CE7B8189835",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*",
                     matchCriteriaId: "80E516C0-98A4-4ADE-B69F-66A772E2BAAA",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:tenable:tenable.sc:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "A686FAF0-1383-4BBB-B7F5-CBCCAB55B356",
                     versionEndIncluding: "5.19.1",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:oracle:secure_backup:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "C01E8B82-71C7-4A4A-A70A-7B147524AB4A",
                     versionEndExcluding: "18.1.0.1.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:*",
                     matchCriteriaId: "D3E503FB-6279-4D4A-91D8-E237ECF9D2B0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         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.",
      },
      {
         lang: "es",
         value: "Un método diseñado enviado mediante HTTP/2 omitirá la comprobación y será reenviado por mod_proxy, lo que puede conllevar a la división de peticiones o el envenenamiento de la caché. Este problema afecta a Apache HTTP Server versiones 2.4.17 a 2.4.48.",
      },
   ],
   id: "CVE-2021-33193",
   lastModified: "2024-11-21T06:08:29.210",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "NONE",
               availabilityImpact: "NONE",
               baseScore: 5,
               confidentialityImpact: "NONE",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:L/Au:N/C:N/I:P/A:N",
               version: "2.0",
            },
            exploitabilityScore: 10,
            impactScore: 2.9,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 7.5,
               baseSeverity: "HIGH",
               confidentialityImpact: "NONE",
               integrityImpact: "HIGH",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
               version: "3.1",
            },
            exploitabilityScore: 3.9,
            impactScore: 3.6,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2021-08-16T08:15:11.480",
   references: [
      {
         source: "security@apache.org",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://github.com/apache/httpd/commit/ecebcc035ccd8d0e2984fe41420d9e944f456b3c.patch",
      },
      {
         source: "security@apache.org",
         url: "https://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d%40%3Ccvs.httpd.apache.org%3E",
      },
      {
         source: "security@apache.org",
         url: "https://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70%40%3Ccvs.httpd.apache.org%3E",
      },
      {
         source: "security@apache.org",
         url: "https://lists.debian.org/debian-lts-announce/2023/03/msg00002.html",
      },
      {
         source: "security@apache.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/",
      },
      {
         source: "security@apache.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/",
      },
      {
         source: "security@apache.org",
         tags: [
            "Exploit",
            "Third Party Advisory",
         ],
         url: "https://portswigger.net/research/http2",
      },
      {
         source: "security@apache.org",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://security.gentoo.org/glsa/202208-20",
      },
      {
         source: "security@apache.org",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://security.netapp.com/advisory/ntap-20210917-0004/",
      },
      {
         source: "security@apache.org",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ",
      },
      {
         source: "security@apache.org",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://www.oracle.com/security-alerts/cpuapr2022.html",
      },
      {
         source: "security@apache.org",
         tags: [
            "Patch",
            "Third Party Advisory",
         ],
         url: "https://www.oracle.com/security-alerts/cpujan2022.html",
      },
      {
         source: "security@apache.org",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.tenable.com/security/tns-2021-17",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Patch",
            "Third Party Advisory",
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      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.apache.org/thread.html/re4162adc051c1a0a79e7a24093f3776373e8733abaff57253fef341d%40%3Ccvs.httpd.apache.org%3E",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.apache.org/thread.html/ree7519d71415ecdd170ff1889cab552d71758d2ba2904a17ded21a70%40%3Ccvs.httpd.apache.org%3E",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.debian.org/debian-lts-announce/2023/03/msg00002.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DSM6UWQICBJ2TU727RENU3HBKEAFLT6T/",
      },
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         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EUVJVRJRBW5QVX4OY3NOHZDQ3B3YOTSG/",
      },
      {
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         tags: [
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         url: "https://www.tenable.com/security/tns-2021-17",
      },
   ],
   sourceIdentifier: "security@apache.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "NVD-CWE-Other",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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