gsd-2021-44224
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).
Aliases
Aliases
CVE-2021-44224


To clipboard 

{
   GSD: {
      alias: "CVE-2021-44224",
      description: "A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).",
      id: "GSD-2021-44224",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-44224.html",
         "https://www.debian.org/security/2022/dsa-5035",
         "https://ubuntu.com/security/CVE-2021-44224",
         "https://advisories.mageia.org/CVE-2021-44224.html",
         "https://alas.aws.amazon.com/cve/html/CVE-2021-44224.html",
         "https://linux.oracle.com/cve/CVE-2021-44224.html",
         "https://access.redhat.com/errata/RHSA-2022:1915",
         "https://access.redhat.com/errata/RHSA-2022:6753",
         "https://access.redhat.com/errata/RHSA-2022:7143",
         "https://access.redhat.com/errata/RHSA-2022:7144",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-44224",
         ],
         details: "A crafted URI sent to httpd configured as a forward proxy (ProxyRequests on) can cause a crash (NULL pointer dereference) or, for configurations mixing forward and reverse proxy declarations, can allow for requests to be directed to a declared Unix Domain Socket endpoint (Server Side Request Forgery). This issue affects Apache HTTP Server 2.4.7 up to 2.4.51 (included).",
         id: "GSD-2021-44224",
         modified: "2023-12-13T01:23:20.829364Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
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         CVE_data_meta: {
            ASSIGNER: "security@apache.org",
            ID: "CVE-2021-44224",
            STATE: "PUBLIC",
            TITLE: "Possible NULL dereference or SSRF in forward proxy configurations in Apache HTTP Server 2.4.51 and earlier",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "Apache HTTP Server",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: ">=",
                                       version_name: "Apache HTTP Server 2.4",
                                       version_value: "2.4.7",
                                    },
                                    {
                                       version_affected: "<=",
                                       version_name: "Apache HTTP Server 2.4",
                                       version_value: "2.4.51",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "Apache Software Foundation",
                  },
               ],
            },
         },
         credit: [
            {
               lang: "eng",
               value: "漂亮鼠",
            },
            {
               lang: "eng",
               value: "TengMA(@Te3t123)",
            },
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         source: {
            discovery: "UNKNOWN",
         },
         timeline: [
            {
               lang: "eng",
               time: "2021-11-18",
               value: "Reported to security team",
            },
            {
               lang: "eng",
               time: "2021-12-14",
               value: "fixed by r1895955+r1896044 in 2.4.x",
            },
         ],
      },
      "nvd.nist.gov": {
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                  },
                  {
                     name: "GLSA-202208-20",
                     refsource: "GENTOO",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://security.gentoo.org/glsa/202208-20",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  accessComplexity: "LOW",
                  accessVector: "NETWORK",
                  authentication: "NONE",
                  availabilityImpact: "PARTIAL",
                  baseScore: 6.4,
                  confidentialityImpact: "NONE",
                  integrityImpact: "PARTIAL",
                  vectorString: "AV:N/AC:L/Au:N/C:N/I:P/A:P",
                  version: "2.0",
               },
               exploitabilityScore: 10,
               impactScore: 4.9,
               obtainAllPrivilege: false,
               obtainOtherPrivilege: false,
               obtainUserPrivilege: false,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "HIGH",
                  baseScore: 8.2,
                  baseSeverity: "HIGH",
                  confidentialityImpact: "NONE",
                  integrityImpact: "LOW",
                  privilegesRequired: "NONE",
                  scope: "UNCHANGED",
                  userInteraction: "NONE",
                  vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 4.2,
            },
         },
         lastModifiedDate: "2022-11-02T13:18Z",
         publishedDate: "2021-12-20T12:15Z",
      },
   },
}


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Security Advisory comment format.

This schema specifies the format of a comment related to a security advisory.

UUIDv4 of the comment
UUIDv4 of the Vulnerability-Lookup instance
When the comment was created originally
When the comment was last updated
Title of the comment
Description of the comment
The identifier of the vulnerability (CVE ID, GHSA-ID, PYSEC ID, etc.).



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Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.