fkie_cve-2021-39242
Vulnerability from fkie_nvd
Published
2021-08-17 19:15
Modified
2024-11-21 06:18
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Summary
An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.
References
cve@mitre.orghttps://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/
cve@mitre.orghttps://www.debian.org/security/2021/dsa-4960Third Party Advisory
cve@mitre.orghttps://www.mail-archive.com/haproxy%40formilux.org/msg41041.html
af854a3a-2127-422b-91ae-364da2661108https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/
af854a3a-2127-422b-91ae-364da2661108https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4960Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.mail-archive.com/haproxy%40formilux.org/msg41041.html
Impacted products
Vendor Product Version
haproxy haproxy *
haproxy haproxy *
haproxy haproxy *
debian debian_linux 11.0
fedoraproject fedora 33
fedoraproject fedora 34


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "B8A35038-8767-48F3-B81F-81FCD0B31D32",
                     versionEndExcluding: "2.2.16",
                     versionStartIncluding: "2.2.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "040439D6-C0FC-4550-884E-1B3FB396A5DF",
                     versionEndExcluding: "2.3.13",
                     versionStartIncluding: "2.3.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*",
                     matchCriteriaId: "88FF602C-41E1-4569-B09B-161BB7C85891",
                     versionEndExcluding: "2.4.3",
                     versionStartIncluding: "2.4.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                     matchCriteriaId: "FA6FEEC2-9F11-4643-8827-749718254FED",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                     matchCriteriaId: "E460AA51-FCDA-46B9-AE97-E6676AA5E194",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                     matchCriteriaId: "A930E247-0B43-43CB-98FF-6CE7B8189835",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "An issue was discovered in HAProxy 2.2 before 2.2.16, 2.3 before 2.3.13, and 2.4 before 2.4.3. It can lead to a situation with an attacker-controlled HTTP Host header, because a mismatch between Host and authority is mishandled.",
      },
      {
         lang: "es",
         value: "Se ha detectado un problema en HAProxy versiones 2.2 anteriores a 2.2.16, versiones 2.3 anteriores a 2.3.13 y versiones 2.4 anteriores a 2.4.3. Puede conllevar a una situación con un encabezado HTTP Host controlada por un atacante, porque es manejado inapropiadamente un desajuste entre Host y autoridad.",
      },
   ],
   id: "CVE-2021-39242",
   lastModified: "2024-11-21T06:18:59.860",
   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: "2021-08-17T19:15:08.320",
   references: [
      {
         source: "cve@mitre.org",
         url: "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1",
      },
      {
         source: "cve@mitre.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/",
      },
      {
         source: "cve@mitre.org",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/",
      },
      {
         source: "cve@mitre.org",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.debian.org/security/2021/dsa-4960",
      },
      {
         source: "cve@mitre.org",
         url: "https://www.mail-archive.com/haproxy%40formilux.org/msg41041.html",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=b5d2b9e154d78e4075db163826c5e0f6d31b2ab1",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4ALECUZDIMT5FYGP6V6PVSI4BKVZTZWN/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RPNY4WZIQUAUOCLIMUPC37AQWNXTWIQM/",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
            "Third Party Advisory",
         ],
         url: "https://www.debian.org/security/2021/dsa-4960",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://www.mail-archive.com/haproxy%40formilux.org/msg41041.html",
      },
   ],
   sourceIdentifier: "cve@mitre.org",
   vulnStatus: "Modified",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-755",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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