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

References

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",
      "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": "2018-01-02T19:00:00Z",
        "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",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Syncthing version 0.14.33 and older is vulnerable to symlink traversal resulting in arbitrary file overwrite"
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                {
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                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/syncthing/syncthing/issues/4286",
              "refsource": "CONFIRM",
              "url": "https://github.com/syncthing/syncthing/issues/4286"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2017-1000420",
    "datePublished": "2018-01-02T19:00:00Z",
    "dateReserved": "2018-01-02T00:00:00Z",
    "dateUpdated": "2024-09-16T16:53:22.748Z",
    "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-28XP-G7F6-7MHF

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

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Sightings

Nomenclature