gsd-2017-0377
Vulnerability from gsd
Modified
2023-12-13 01:20
Details
Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay's family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.
Aliases
Aliases
CVE-2017-0377


To clipboard 

{
  "GSD": {
    "alias": "CVE-2017-0377",
    "description": "Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay\u0027s family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.",
    "id": "GSD-2017-0377",
    "references": [
      "https://www.suse.com/security/cve/CVE-2017-0377.html",
      "https://security.archlinux.org/CVE-2017-0377"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2017-0377"
      ],
      "details": "Tor 0.3.x before 0.3.0.9 has a guard-selection algorithm that only considers the exit relay (not the exit relay\u0027s family), which might allow remote attackers to defeat intended anonymity properties by leveraging the existence of large families.",
      "id": "GSD-2017-0377",
      "modified": "2023-12-13T01:20:59.493713Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "security@debian.org",
        "ID": "CVE-2017-0377",
        "STATE": "PUBLIC"
      },
      "affects": {
        "vendor": {
          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "Tor",
                    "version": {
                      "version_data": [
                        {
                          "version_value": "Tor"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "n/a"
            }
          ]
        }
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          }
        ]
      },
      "problemtype": {
        "problemtype_data": [
          {
            "description": [
              {
                "lang": "eng",
                "value": "privacy bypass"
              }
            ]
          }
        ]
      },
      "references": {
        "reference_data": [
          {
            "name": "https://trac.torproject.org/projects/tor/ticket/22753",
            "refsource": "CONFIRM",
            "url": "https://trac.torproject.org/projects/tor/ticket/22753"
          },
          {
            "name": "https://security-tracker.debian.org/CVE-2017-0377",
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            "url": "https://security-tracker.debian.org/CVE-2017-0377"
          },
          {
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          },
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            "refsource": "CONFIRM",
            "url": "https://blog.torproject.org/blog/tor-0314-alpha-released-security-update-clients"
          },
          {
            "name": "https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350",
            "refsource": "CONFIRM",
            "url": "https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.5:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.4:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.3:alpha:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.8:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.6:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.1:alpha:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:a:torproject:tor:0.3.0.7:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "security@debian.org",
          "ID": "CVE-2017-0377"
        },
        "data_format": "MITRE",
        "data_type": "CVE",
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        "description": {
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-200"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://trac.torproject.org/projects/tor/ticket/22753",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Vendor Advisory"
              ],
              "url": "https://trac.torproject.org/projects/tor/ticket/22753"
            },
            {
              "name": "https://security-tracker.debian.org/CVE-2017-0377",
              "refsource": "CONFIRM",
              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security-tracker.debian.org/CVE-2017-0377"
            },
            {
              "name": "https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350",
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              "tags": [
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              "url": "https://github.com/torproject/tor/commit/665baf5ed5c6186d973c46cdea165c0548027350"
            },
            {
              "name": "https://blog.torproject.org/blog/tor-0314-alpha-released-security-update-clients",
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              ],
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            },
            {
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                "Vendor Advisory"
              ],
              "url": "https://blog.torproject.org/blog/tor-0309-released-security-update-clients"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": true,
          "cvssV2": {
            "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,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.0"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2017-07-14T14:21Z",
      "publishedDate": "2017-07-02T15:29Z"
    }
  }
}


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