Vulnerability-Lookup

GHSA-28XP-G7F6-7MHF

Vulnerability from github – Published: 2022-05-14 03:49 – Updated: 2023-10-10 16:33

Summary

Syncthing vulnerable to symlink traversal and arbitrary file overwrite

Details

Syncthing version 0.14.33 and older erronously versions symlinks when they are deleted. If a directory is then created with the same name, a file created in that directory, and the file deleted, it is moved into the symlink target. This can lead to symlink traversal resulting in arbitrary file overwrite.

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/syncthing/syncthing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "0.14.33"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-1000420"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-59"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-07-26T22:17:40Z",
    "nvd_published_at": "2018-01-02T19:29:00Z",
    "severity": "HIGH"
  },
  "details": "Syncthing version 0.14.33 and older erronously versions symlinks when they are deleted. If a directory is then created with the same name, a file created in that directory, and the file deleted, it is moved into the symlink target. This can lead to symlink traversal resulting in arbitrary file overwrite.",
  "id": "GHSA-28xp-g7f6-7mhf",
  "modified": "2023-10-10T16:33:31Z",
  "published": "2022-05-14T03:49:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-1000420"
    },
    {
      "type": "WEB",
      "url": "https://github.com/syncthing/syncthing/issues/4286"
    },
    {
      "type": "WEB",
      "url": "https://github.com/syncthing/syncthing/commit/f1f21bf22020d9b881478c2e942ba6943c8da2f3"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/syncthing/syncthing"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Syncthing vulnerable to symlink traversal and arbitrary file overwrite"
}

CVE-2017-1000420 (GCVE-0-2017-1000420)

Vulnerability from cvelistv5 – Published: 2018-01-02 19:00 – Updated: 2024-09-16 16:53

Summary

Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite

Severity

No CVSS data available.

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 29/100 over 2337 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/syncthing/syncthing/issues/4286	x_refsource_CONFIRM

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T22:00:41.148Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/syncthing/syncthing/issues/4286"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "dateAssigned": "2017-12-29T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-01-02T19:00:00.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/syncthing/syncthing/issues/4286"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "DATE_ASSIGNED": "2017-12-29",
          "ID": "CVE-2017-1000420",
          "REQUESTER": "jakob@kastelo.net",
          "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",
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        "data_version": "4.0",
        "description": {
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              "url": "https://github.com/syncthing/syncthing/issues/4286"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
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    "datePublished": "2018-01-02T19:00:00.000Z",
    "dateReserved": "2018-01-02T00:00:00.000Z",
    "dateUpdated": "2024-09-16T16:53:22.748Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.

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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.
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