gsd-2021-31810
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).
Aliases
Aliases
CVE-2021-31810


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-31810",
    "description": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).",
    "id": "GSD-2021-31810",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-31810.html",
      "https://www.debian.org/security/2022/dsa-5066",
      "https://access.redhat.com/errata/RHSA-2022:0708",
      "https://access.redhat.com/errata/RHSA-2022:0672",
      "https://access.redhat.com/errata/RHSA-2022:0582",
      "https://access.redhat.com/errata/RHSA-2022:0581",
      "https://access.redhat.com/errata/RHSA-2022:0544",
      "https://access.redhat.com/errata/RHSA-2022:0543",
      "https://access.redhat.com/errata/RHSA-2021:3982",
      "https://access.redhat.com/errata/RHSA-2021:3559",
      "https://access.redhat.com/errata/RHSA-2021:3020",
      "https://ubuntu.com/security/CVE-2021-31810",
      "https://advisories.mageia.org/CVE-2021-31810.html",
      "https://security.archlinux.org/CVE-2021-31810",
      "https://linux.oracle.com/cve/CVE-2021-31810.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-31810"
      ],
      "details": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).",
      "id": "GSD-2021-31810",
      "modified": "2023-12-13T01:23:13.255781Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2021-31810",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "n/a",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
      },
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions)."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://hackerone.com/reports/1145454",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/1145454"
          },
          {
            "name": "FEDORA-2021-36cdab1f8d",
            "refsource": "FEDORA",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/"
          },
          {
            "name": "[debian-lts-announce] 20211013 [SECURITY] [DLA 2780-1] ruby2.3 security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html"
          },
          {
            "name": "https://www.oracle.com/security-alerts/cpuapr2022.html",
            "refsource": "MISC",
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          },
          {
            "name": "https://www.ruby-lang.org/en/news/2021/07/07/trusting-pasv-responses-in-net-ftp/",
            "refsource": "MISC",
            "url": "https://www.ruby-lang.org/en/news/2021/07/07/trusting-pasv-responses-in-net-ftp/"
          },
          {
            "name": "https://security.netapp.com/advisory/ntap-20210917-0001/",
            "refsource": "CONFIRM",
            "url": "https://security.netapp.com/advisory/ntap-20210917-0001/"
          },
          {
            "name": "[debian-lts-announce] 20230430 [SECURITY] [DLA 3408-1] jruby security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html"
          },
          {
            "name": "GLSA-202401-27",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/202401-27"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "cve": {
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "EF4F2191-A77B-45F1-BA1E-F36F7F357704",
                    "versionEndIncluding": "2.6.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D29D5386-D306-4CB4-82EC-678319F0101D",
                    "versionEndIncluding": "2.7.3",
                    "versionStartIncluding": "2.7.0",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "528E25B8-22A4-4AAF-9582-76BCDF3705B5",
                    "versionEndIncluding": "3.0.1",
                    "versionStartIncluding": "3.0.0",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              },
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*",
                    "matchCriteriaId": "A930E247-0B43-43CB-98FF-6CE7B8189835",
                    "vulnerable": false
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ],
            "operator": "AND"
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                    "matchCriteriaId": "DEECE5FC-CACF-4496-A3E7-164736409252",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          },
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "D1298AA2-0103-4457-B260-F976B78468E7",
                    "versionEndExcluding": "9.2.6.1",
                    "vulnerable": true
                  }
                ],
                "negate": false,
                "operator": "OR"
              }
            ]
          }
        ],
        "descriptions": [
          {
            "lang": "en",
            "value": "An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions)."
          },
          {
            "lang": "es",
            "value": "Se ha detectado un problema en Ruby versiones hasta 2.6.7, versiones 2.7.x hasta 2.7.3, y versiones 3.x hasta 3.0.1. Un servidor FTP malicioso puede usar la respuesta PASV para enga\u00f1ar a la funci\u00f3n Net::FTP para que se conecte de nuevo a una direcci\u00f3n IP y un puerto determinados. Esto potencialmente hace que curl extraiga informaci\u00f3n sobre servicios que de otra manera son privados y no son divulgados (por ejemplo, el atacante puede conducir escaneos de puertos y extracciones de banners de servicios)"
          }
        ],
        "id": "CVE-2021-31810",
        "lastModified": "2024-01-24T05:15:09.683",
        "metrics": {
          "cvssMetricV2": [
            {
              "acInsufInfo": false,
              "baseSeverity": "MEDIUM",
              "cvssData": {
                "accessComplexity": "LOW",
                "accessVector": "NETWORK",
                "authentication": "NONE",
                "availabilityImpact": "NONE",
                "baseScore": 5.0,
                "confidentialityImpact": "PARTIAL",
                "integrityImpact": "NONE",
                "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
                "version": "2.0"
              },
              "exploitabilityScore": 10.0,
              "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": 5.8,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "LOW",
                "integrityImpact": "NONE",
                "privilegesRequired": "NONE",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2021-07-13T13:15:09.243",
        "references": [
          {
            "source": "cve@mitre.org",
            "tags": [
              "Exploit",
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://hackerone.com/reports/1145454"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Mailing List",
              "Third Party Advisory"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/"
          },
          {
            "source": "cve@mitre.org",
            "url": "https://security.gentoo.org/glsa/202401-27"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Third Party Advisory"
            ],
            "url": "https://security.netapp.com/advisory/ntap-20210917-0001/"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Patch",
              "Third Party Advisory"
            ],
            "url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
          },
          {
            "source": "cve@mitre.org",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "https://www.ruby-lang.org/en/news/2021/07/07/trusting-pasv-responses-in-net-ftp/"
          }
        ],
        "sourceIdentifier": "cve@mitre.org",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-Other"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    }
  }
}


Log in or create an account to share your comment.




Tags
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.