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": "\u003c",
                          "version_name": "7.3.x",
                          "version_value": "7.3.29"
                        },
                        {
                          "version_affected": "\u003c",
                          "version_name": "7.4.x",
                          "version_value": "7.4.21"
                        },
                        {
                          "version_affected": "\u003c",
                          "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"
        }
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      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
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            "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": {
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        "nodes": [
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            "children": [],
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                "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": {
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          "ASSIGNER": "security@php.net",
          "ID": "CVE-2021-21705"
        },
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        "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": [
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                "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"
            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "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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