Vulnerability-Lookup

CNVD-2022-29294

Vulnerability from cnvd - Published: 2022-04-15

Title

Tor Browser信息泄露漏洞

Description

Tor Browser是一款用于匿名访问互联网的浏览器。 Tor Browser存在信息泄露漏洞，攻击者可利用该漏洞绕过预期的匿名功能并获取有关本地用户访问的洋葱服务的信息。

Severity

低

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.sciencedirect.com/science/article/pii/S0167404821001358

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-46702

Impacted products

Name
Tor Browser Tor Browser 9.0.7

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-46702"
    }
  },
  "description": "Tor Browser\u662f\u4e00\u6b3e\u7528\u4e8e\u533f\u540d\u8bbf\u95ee\u4e92\u8054\u7f51\u7684\u6d4f\u89c8\u5668\u3002\n\nTor Browser\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u9884\u671f\u7684\u533f\u540d\u529f\u80fd\u5e76\u83b7\u53d6\u6709\u5173\u672c\u5730\u7528\u6237\u8bbf\u95ee\u7684\u6d0b\u8471\u670d\u52a1\u7684\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.sciencedirect.com/science/article/pii/S0167404821001358",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-29294",
  "openTime": "2022-04-15",
  "products": {
    "product": "Tor Browser Tor Browser 9.0.7"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-46702",
  "serverity": "\u4f4e",
  "submitTime": "2022-03-01",
  "title": "Tor Browser\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2021-46702 (GCVE-0-2021-46702)

Vulnerability from cvelistv5 – Published: 2022-02-26 02:56 – Updated: 2024-08-04 05:17

Summary

Tor Browser 9.0.7 on Windows 10 build 10586 is vulnerable to information disclosure. This could allow local attackers to bypass the intended anonymity feature and obtain information regarding the onion services visited by a local user. This can be accomplished by analyzing RAM memory even several hours after the local user used the product. This occurs because the product doesn't properly free memory.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://www.sciencedirect.com/science/article/pii…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:17:42.618Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
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          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.sciencedirect.com/science/article/pii/S0167404821001358"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Tor Browser 9.0.7 on Windows 10 build 10586 is vulnerable to information disclosure. This could allow local attackers to bypass the intended anonymity feature and obtain information regarding the onion services visited by a local user. This can be accomplished by analyzing RAM memory even several hours after the local user used the product. This occurs because the product doesn\u0027t properly free memory."
        }
      ],
      "problemTypes": [
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              "type": "text"
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      "providerMetadata": {
        "dateUpdated": "2022-02-26T02:56:26.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.sciencedirect.com/science/article/pii/S0167404821001358"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-46702",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
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          }
        },
        "data_format": "MITRE",
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        "description": {
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              "value": "Tor Browser 9.0.7 on Windows 10 build 10586 is vulnerable to information disclosure. This could allow local attackers to bypass the intended anonymity feature and obtain information regarding the onion services visited by a local user. This can be accomplished by analyzing RAM memory even several hours after the local user used the product. This occurs because the product doesn\u0027t properly free memory."
            }
          ]
        },
        "problemtype": {
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                  "value": "n/a"
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        },
        "references": {
          "reference_data": [
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              "name": "https://www.sciencedirect.com/science/article/pii/S0167404821001358",
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              "url": "https://www.sciencedirect.com/science/article/pii/S0167404821001358"
            }
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2022-02-26T02:56:26.000Z",
    "dateReserved": "2022-02-26T00:00:00.000Z",
    "dateUpdated": "2024-08-04T05:17:42.618Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.