Vulnerability-Lookup

GHSA-GVVC-PV9R-RG5Q

Vulnerability from github – Published: 2022-05-24 17:07 – Updated: 2022-05-24 17:07

Details

The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information.

Severity ?

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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{
  "affected": [],
  "aliases": [
    "CVE-2020-8516"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-200"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-02-02T13:15:00Z",
    "severity": "MODERATE"
  },
  "details": "The daemon in Tor through 0.4.1.8 and 0.4.2.x through 0.4.2.6 does not verify that a rendezvous node is known before attempting to connect to it, which might make it easier for remote attackers to discover circuit information.",
  "id": "GHSA-gvvc-pv9r-rg5q",
  "modified": "2022-05-24T17:07:52Z",
  "published": "2022-05-24T17:07:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8516"
    },
    {
      "type": "WEB",
      "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014146.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html"
    },
    {
      "type": "WEB",
      "url": "https://security-tracker.debian.org/tracker/CVE-2020-8516"
    },
    {
      "type": "WEB",
      "url": "https://trac.torproject.org/projects/tor/ticket/33129"
    },
    {
      "type": "WEB",
      "url": "https://www.hackerfactor.com/blog/index.php?/archives/868-Deanonymizing-Tor-Circuits.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2020-8516 (GCVE-0-2020-8516)

Vulnerability from cvelistv5 – Published: 2020-02-02 12:52 – Updated: 2024-08-04 10:03 Disputed

Summary

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://www.hackerfactor.com/blog/index.php?/arch…	x_refsource_MISC
	https://lists.torproject.org/pipermail/tor-dev/20…	x_refsource_MISC
	https://security-tracker.debian.org/tracker/CVE-2…	x_refsource_MISC
	https://lists.torproject.org/pipermail/tor-dev/20…	x_refsource_MISC
	https://trac.torproject.org/projects/tor/ticket/33129	x_refsource_MISC

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T10:03:45.879Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.hackerfactor.com/blog/index.php?/archives/868-Deanonymizing-Tor-Circuits.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://security-tracker.debian.org/tracker/CVE-2020-8516"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014146.html"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://trac.torproject.org/projects/tor/ticket/33129"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
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          "product": "n/a",
          "vendor": "n/a",
          "versions": [
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-02-10T17:14:48",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
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        },
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          ],
          "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html"
        },
        {
          "tags": [
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          ],
          "url": "https://security-tracker.debian.org/tracker/CVE-2020-8516"
        },
        {
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            "x_refsource_MISC"
          ],
          "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014146.html"
        },
        {
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            "x_refsource_MISC"
          ],
          "url": "https://trac.torproject.org/projects/tor/ticket/33129"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
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        "affects": {
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                },
                "vendor_name": "n/a"
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          }
        },
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "n/a"
                }
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            }
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        },
        "references": {
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            {
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              "refsource": "MISC",
              "url": "https://www.hackerfactor.com/blog/index.php?/archives/868-Deanonymizing-Tor-Circuits.html"
            },
            {
              "name": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html",
              "refsource": "MISC",
              "url": "https://lists.torproject.org/pipermail/tor-dev/2020-February/014147.html"
            },
            {
              "name": "https://security-tracker.debian.org/tracker/CVE-2020-8516",
              "refsource": "MISC",
              "url": "https://security-tracker.debian.org/tracker/CVE-2020-8516"
            },
            {
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              "refsource": "MISC",
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            },
            {
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            }
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  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-8516",
    "datePublished": "2020-02-02T12:52:56",
    "dateReserved": "2020-02-02T00:00:00",
    "dateUpdated": "2024-08-04T10:03:45.879Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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.

Action not permitted

GHSA-GVVC-PV9R-RG5Q

CVE-2020-8516 (GCVE-0-2020-8516)

Tags

Sightings

Nomenclature