gsd-2021-37533
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Prior to Apache Commons Net 3.9.0, Net's FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.
Aliases
Aliases
CVE-2021-37533


To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-37533",
    "id": "GSD-2021-37533",
    "references": [
      "https://www.debian.org/security/2022/dsa-5307",
      "https://www.suse.com/security/cve/CVE-2021-37533.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2021-37533"
      ],
      "details": "Prior to Apache Commons Net 3.9.0, Net\u0027s FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.",
      "id": "GSD-2021-37533",
      "modified": "2023-12-13T01:23:10.286620Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@apache.org",
        "ID": "CVE-2021-37533",
        "STATE": "PUBLIC",
        "TITLE": "Apache Commons Net\u0027s FTP client trusts the host from PASV response by default"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Apache Commons Net",
                    "version": {
                      "version_data": [
                        {
                          "version_affected": "\u003c",
                          "version_name": "Apache Commons Net",
                          "version_value": "3.9.0"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Apache Software Foundation"
            }
          ]
        }
      },
      "credit": [
        {
          "lang": "eng",
          "value": "Apache Commons would like to thank ZeddYu Lu for reporting this issue."
        }
      ],
      "data_format": "MITRE",
      "data_type": "CVE",
      "data_version": "4.0",
      "description": {
        "description_data": [
          {
            "lang": "eng",
            "value": "Prior to Apache Commons Net 3.9.0, Net\u0027s FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711."
          }
        ]
      },
      "generator": {
        "engine": "Vulnogram 0.0.9"
      },
      "impact": [
        {
          "other": "low"
        }
      ],
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "CWE-20 Improper Input Validation"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7",
            "refsource": "MISC",
            "url": "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7"
          },
          {
            "name": "[oss-security] 20221203 CVE-2021-37533: Apache Commons Net\u0027s FTP client trusts the host from PASV response by default",
            "refsource": "MLIST",
            "url": "http://www.openwall.com/lists/oss-security/2022/12/03/1"
          },
          {
            "name": "[debian-lts-announce] 20221229 [SECURITY] [DLA 3251-1] libcommons-net-java security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html"
          },
          {
            "name": "DSA-5307",
            "refsource": "DEBIAN",
            "url": "https://www.debian.org/security/2022/dsa-5307"
          }
        ]
      },
      "source": {
        "defect": [
          "NET-711"
        ],
        "discovery": "UNKNOWN"
      }
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "(,3.9.0)",
          "affected_versions": "All versions before 3.9.0",
          "cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-20",
            "CWE-937"
          ],
          "date": "2022-12-06",
          "description": "Prior to Apache Commons Net 3.9.0, Net\u0027s FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711.",
          "fixed_versions": [
            "3.9.0"
          ],
          "identifier": "CVE-2021-37533",
          "identifiers": [
            "GHSA-cgp8-4m63-fhh5",
            "CVE-2021-37533"
          ],
          "not_impacted": "All versions starting from 3.9.0",
          "package_slug": "maven/commons-net/commons-net",
          "pubdate": "2022-12-03",
          "solution": "Upgrade to version 3.9.0 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2021-37533",
            "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7",
            "https://github.com/apache/commons-net/commit/4fe1bae56e53f32756b1ca3296f3dd2c45e3e060",
            "https://issues.apache.org/jira/browse/NET-711",
            "http://www.openwall.com/lists/oss-security/2022/12/03/1",
            "https://github.com/advisories/GHSA-cgp8-4m63-fhh5"
          ],
          "uuid": "ce7c862b-5f74-4a04-a324-effadf1c2b22"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:apache:commons_net:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndExcluding": "3.9.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@apache.org",
          "ID": "CVE-2021-37533"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "Prior to Apache Commons Net 3.9.0, Net\u0027s FTP client trusts the host from PASV response by default. A malicious server can redirect the Commons Net code to use a different host, but the user has to connect to the malicious server in the first place. This may lead to leakage of information about services running on the private network of the client. The default in version 3.9.0 is now false to ignore such hosts, as cURL does. See https://issues.apache.org/jira/browse/NET-711."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-20"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "N/A",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Mailing List",
                "Vendor Advisory"
              ],
              "url": "https://lists.apache.org/thread/o6yn9r9x6s94v97264hmgol1sf48mvx7"
            },
            {
              "name": "[oss-security] 20221203 CVE-2021-37533: Apache Commons Net\u0027s FTP client trusts the host from PASV response by default",
              "refsource": "MLIST",
              "tags": [
                "Issue Tracking",
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "http://www.openwall.com/lists/oss-security/2022/12/03/1"
            },
            {
              "name": "[debian-lts-announce] 20221229 [SECURITY] [DLA 3251-1] libcommons-net-java security update",
              "refsource": "MLIST",
              "tags": [
                "Mailing List",
                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2022/12/msg00038.html"
            },
            {
              "name": "DSA-5307",
              "refsource": "DEBIAN",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://www.debian.org/security/2022/dsa-5307"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2023-01-10T19:29Z",
      "publishedDate": "2022-12-03T15:15Z"
    }
  }
}


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