GSD-2002-0820

Vulnerability from gsd - Updated: 2023-12-13 01:24
Details
FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.
Aliases
Aliases
CVE-2002-0820
To clipboard Create KEV Entry 

{
  "GSD": {
    "alias": "CVE-2002-0820",
    "description": "FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.",
    "id": "GSD-2002-0820"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2002-0820"
      ],
      "details": "FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges.",
      "id": "GSD-2002-0820",
      "modified": "2023-12-13T01:24:06.014412Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2002-0820",
        "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": "FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges."
          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "n/a"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "http://groups.google.com/groups?hl=en\u0026lr=\u0026ie=UTF-8\u0026oe=UTF-8\u0026frame=right\u0026th=d429cd2ef1d3a2b7\u0026seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16",
            "refsource": "MISC",
            "url": "http://groups.google.com/groups?hl=en\u0026lr=\u0026ie=UTF-8\u0026oe=UTF-8\u0026frame=right\u0026th=d429cd2ef1d3a2b7\u0026seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16"
          },
          {
            "name": "FreeBSD-SA-02:23",
            "refsource": "FREEBSD",
            "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc"
          },
          {
            "name": "20020731 [VulnWatch] FreeBSD \u003c=4.6 kernel problems, yet Linux and *BSD much better than Windows",
            "refsource": "VULNWATCH",
            "url": "http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html"
          },
          {
            "name": "20020819 Freebsd FD exploit",
            "refsource": "BUGTRAQ",
            "url": "http://marc.info/?l=bugtraq\u0026m=102979180524452\u0026w=2"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:freebsd:freebsd:4.6:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2002-0820"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "en",
              "value": "FreeBSD kernel 4.6 and earlier closes the file descriptors 0, 1, and 2 after they have already been assigned to /dev/null when the descriptors reference procfs or linprocfs, which could allow local users to reuse the file descriptors in a setuid or setgid program to modify critical data and gain privileges."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "NVD-CWE-Other"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20020731 [VulnWatch] FreeBSD \u003c=4.6 kernel problems, yet Linux and *BSD much better than Windows",
              "refsource": "VULNWATCH",
              "tags": [
                "Vendor Advisory"
              ],
              "url": "http://archives.neohapsis.com/archives/vulnwatch/2002-q3/0047.html"
            },
            {
              "name": "FreeBSD-SA-02:23",
              "refsource": "FREEBSD",
              "tags": [],
              "url": "ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-02:23.stdio.asc"
            },
            {
              "name": "http://groups.google.com/groups?hl=en\u0026lr=\u0026ie=UTF-8\u0026oe=UTF-8\u0026frame=right\u0026th=d429cd2ef1d3a2b7\u0026seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16",
              "refsource": "MISC",
              "tags": [],
              "url": "http://groups.google.com/groups?hl=en\u0026lr=\u0026ie=UTF-8\u0026oe=UTF-8\u0026frame=right\u0026th=d429cd2ef1d3a2b7\u0026seekm=ai6c0q%242289%241%40FreeBSD.csie.NCTU.edu.tw#link16"
            },
            {
              "name": "20020819 Freebsd FD exploit",
              "refsource": "BUGTRAQ",
              "tags": [],
              "url": "http://marc.info/?l=bugtraq\u0026m=102979180524452\u0026w=2"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "availabilityImpact": "COMPLETE",
            "baseScore": 7.2,
            "confidentialityImpact": "COMPLETE",
            "integrityImpact": "COMPLETE",
            "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
            "version": "2.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 10.0,
          "obtainAllPrivilege": true,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "HIGH",
          "userInteractionRequired": false
        }
      },
      "lastModifiedDate": "2016-10-18T02:22Z",
      "publishedDate": "2002-08-12T04:00Z"
    }
  }
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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