gsd-2021-21705
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.
Aliases
Aliases
CVE-2021-21705


To clipboard 

{
   GSD: {
      alias: "CVE-2021-21705",
      description: "In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.",
      id: "GSD-2021-21705",
      references: [
         "https://www.suse.com/security/cve/CVE-2021-21705.html",
         "https://www.debian.org/security/2021/dsa-4935",
         "https://access.redhat.com/errata/RHSA-2021:2992",
         "https://ubuntu.com/security/CVE-2021-21705",
         "https://advisories.mageia.org/CVE-2021-21705.html",
         "https://security.archlinux.org/CVE-2021-21705",
         "https://alas.aws.amazon.com/cve/html/CVE-2021-21705.html",
         "https://linux.oracle.com/cve/CVE-2021-21705.html",
         "https://access.redhat.com/errata/RHSA-2022:1935",
      ],
   },
   gsd: {
      metadata: {
         exploitCode: "unknown",
         remediation: "unknown",
         reportConfidence: "confirmed",
         type: "vulnerability",
      },
      osvSchema: {
         aliases: [
            "CVE-2021-21705",
         ],
         details: "In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.",
         id: "GSD-2021-21705",
         modified: "2023-12-13T01:23:11.064787Z",
         schema_version: "1.4.0",
      },
   },
   namespaces: {
      "cve.org": {
         CVE_data_meta: {
            ASSIGNER: "security@php.net",
            DATE_PUBLIC: "2021-06-28T11:41:00.000Z",
            ID: "CVE-2021-21705",
            STATE: "PUBLIC",
            TITLE: "Incorrect URL validation in FILTER_VALIDATE_URL",
         },
         affects: {
            vendor: {
               vendor_data: [
                  {
                     product: {
                        product_data: [
                           {
                              product_name: "PHP",
                              version: {
                                 version_data: [
                                    {
                                       version_affected: "<",
                                       version_name: "7.3.x",
                                       version_value: "7.3.29",
                                    },
                                    {
                                       version_affected: "<",
                                       version_name: "7.4.x",
                                       version_value: "7.4.21",
                                    },
                                    {
                                       version_affected: "<",
                                       version_name: "8.0.X",
                                       version_value: "8.0.8",
                                    },
                                 ],
                              },
                           },
                        ],
                     },
                     vendor_name: "PHP Group",
                  },
               ],
            },
         },
         credit: [
            {
               lang: "eng",
               value: "reported by vi at hackberry dot xyz",
            },
         ],
         data_format: "MITRE",
         data_type: "CVE",
         data_version: "4.0",
         description: {
            description_data: [
               {
                  lang: "eng",
                  value: "In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.",
               },
            ],
         },
         generator: {
            engine: "Vulnogram 0.0.9",
         },
         impact: {
            cvss: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "NONE",
               baseScore: 4.3,
               baseSeverity: "MEDIUM",
               confidentialityImpact: "LOW",
               integrityImpact: "NONE",
               privilegesRequired: "NONE",
               scope: "UNCHANGED",
               userInteraction: "REQUIRED",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
               version: "3.1",
            },
         },
         problemtype: {
            problemtype_data: [
               {
                  description: [
                     {
                        lang: "eng",
                        value: "CWE-20 Improper Input Validation",
                     },
                  ],
               },
            ],
         },
         references: {
            reference_data: [
               {
                  name: "https://bugs.php.net/bug.php?id=81122",
                  refsource: "MISC",
                  url: "https://bugs.php.net/bug.php?id=81122",
               },
               {
                  name: "https://www.oracle.com/security-alerts/cpujan2022.html",
                  refsource: "MISC",
                  url: "https://www.oracle.com/security-alerts/cpujan2022.html",
               },
               {
                  name: "https://security.netapp.com/advisory/ntap-20211029-0006/",
                  refsource: "CONFIRM",
                  url: "https://security.netapp.com/advisory/ntap-20211029-0006/",
               },
               {
                  name: "GLSA-202209-20",
                  refsource: "GENTOO",
                  url: "https://security.gentoo.org/glsa/202209-20",
               },
            ],
         },
         source: {
            defect: [
               "https://bugs.php.net/bug.php?id=81122",
            ],
            discovery: "EXTERNAL",
         },
      },
      "nvd.nist.gov": {
         configurations: {
            CVE_data_version: "4.0",
            nodes: [
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "8.0.8",
                        versionStartIncluding: "8.0.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "7.4.21",
                        versionStartIncluding: "7.4.0",
                        vulnerable: true,
                     },
                     {
                        cpe23Uri: "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
                        cpe_name: [],
                        versionEndExcluding: "7.3.29",
                        versionStartIncluding: "7.3.0",
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
               {
                  children: [],
                  cpe_match: [
                     {
                        cpe23Uri: "cpe:2.3:a:oracle:sd-wan_aware:8.2:*:*:*:*:*:*:*",
                        cpe_name: [],
                        vulnerable: true,
                     },
                  ],
                  operator: "OR",
               },
            ],
         },
         cve: {
            CVE_data_meta: {
               ASSIGNER: "security@php.net",
               ID: "CVE-2021-21705",
            },
            data_format: "MITRE",
            data_type: "CVE",
            data_version: "4.0",
            description: {
               description_data: [
                  {
                     lang: "en",
                     value: "In PHP versions 7.3.x below 7.3.29, 7.4.x below 7.4.21 and 8.0.x below 8.0.8, when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter, an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.",
                  },
               ],
            },
            problemtype: {
               problemtype_data: [
                  {
                     description: [
                        {
                           lang: "en",
                           value: "CWE-20",
                        },
                     ],
                  },
               ],
            },
            references: {
               reference_data: [
                  {
                     name: "N/A",
                     refsource: "CONFIRM",
                     tags: [
                        "Exploit",
                        "Issue Tracking",
                        "Patch",
                        "Vendor Advisory",
                     ],
                     url: "https://bugs.php.net/bug.php?id=81122",
                  },
                  {
                     name: "https://security.netapp.com/advisory/ntap-20211029-0006/",
                     refsource: "CONFIRM",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://security.netapp.com/advisory/ntap-20211029-0006/",
                  },
                  {
                     name: "https://www.oracle.com/security-alerts/cpujan2022.html",
                     refsource: "MISC",
                     tags: [
                        "Patch",
                        "Vendor Advisory",
                     ],
                     url: "https://www.oracle.com/security-alerts/cpujan2022.html",
                  },
                  {
                     name: "GLSA-202209-20",
                     refsource: "GENTOO",
                     tags: [
                        "Third Party Advisory",
                     ],
                     url: "https://security.gentoo.org/glsa/202209-20",
                  },
               ],
            },
         },
         impact: {
            baseMetricV2: {
               acInsufInfo: false,
               cvssV2: {
                  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,
               severity: "MEDIUM",
               userInteractionRequired: false,
            },
            baseMetricV3: {
               cvssV3: {
                  attackComplexity: "LOW",
                  attackVector: "NETWORK",
                  availabilityImpact: "NONE",
                  baseScore: 5.3,
                  baseSeverity: "MEDIUM",
                  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:N",
                  version: "3.1",
               },
               exploitabilityScore: 3.9,
               impactScore: 1.4,
            },
         },
         lastModifiedDate: "2022-10-29T02:50Z",
         publishedDate: "2021-10-04T04:15Z",
      },
   },
}


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