github - ghsa-xhjq-w7xm-p8qj

ghsa-xhjq-w7xm-p8qj

Vulnerability from github

Published

2023-02-07 22:39

Modified

2024-04-19 21:43

Severity ?

8.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

golang.org/x/crypto/ssh Man-in-the-Middle attack

Details

The Go SSH library (golang.org/x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks if ClientConfig.HostKeyCallback is not set. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

Show details on source website

JSON

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "golang.org/x/crypto"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.0.0-20170330155735-e4e2799dd7aa"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2017-3204"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-07T22:39:34Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "The Go SSH library (golang.org/x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks if ClientConfig.HostKeyCallback is not set. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.",
  "id": "GHSA-xhjq-w7xm-p8qj",
  "modified": "2024-04-19T21:43:20Z",
  "published": "2023-02-07T22:39:34Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-3204"
    },
    {
      "type": "WEB",
      "url": "https://github.com/golang/go/issues/19767"
    },
    {
      "type": "WEB",
      "url": "https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991"
    },
    {
      "type": "WEB",
      "url": "https://bridge.grumpy-troll.org/2017/04/golang-ssh-security"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/340830"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/cl/38701"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/19767"
    },
    {
      "type": "WEB",
      "url": "https://go.googlesource.com/crypto/+/e4e2799dd7aab89f583e1d898300d96367750991"
    },
    {
      "type": "WEB",
      "url": "https://godoc.org/golang.org/x/crypto/ssh"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2020-0013"
    },
    {
      "type": "WEB",
      "url": "https://web.archive.org/web/20170423080311/https://www.securityfocus.com/bid/97481"
    },
    {
      "type": "WEB",
      "url": "https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-3204"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "golang.org/x/crypto/ssh Man-in-the-Middle attack"
}

cve-2017-3204

Vulnerability from cvelistv5

Published

2017-04-04 14:00

Modified

2024-08-05 14:16

Severity ?

Summary

The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism.

References

▼	URL	Tags
	https://godoc.org/golang.org/x/crypto/ssh	x_refsource_MISC
	https://github.com/golang/go/issues/19767	x_refsource_CONFIRM
	https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/	x_refsource_MISC
	https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/97481	vdb-entry, x_refsource_BID

Impacted products

Vendor

Product

Version

▼

SSH library

Version: prior to commit e4e2799

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T14:16:28.305Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://godoc.org/golang.org/x/crypto/ssh"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/golang/go/issues/19767"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991"
          },
          {
            "name": "97481",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/97481"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SSH library",
          "vendor": "Go",
          "versions": [
            {
              "status": "affected",
              "version": "prior to commit e4e2799"
            }
          ]
        }
      ],
      "datePublic": "2017-04-02T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-310",
              "description": "CWE-310",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2017-04-07T09:57:01",
        "orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
        "shortName": "certcc"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://godoc.org/golang.org/x/crypto/ssh"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/golang/go/issues/19767"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991"
        },
        {
          "name": "97481",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/97481"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cert@cert.org",
          "ID": "CVE-2017-3204",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SSH library",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "prior to commit e4e2799"
                          }
                        ]
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                    }
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                },
                "vendor_name": "Go"
              }
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        },
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        "data_version": "4.0",
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              "value": "The Go SSH library (x/crypto/ssh) by default does not verify host keys, facilitating man-in-the-middle attacks. Default behavior changed in commit e4e2799 to require explicitly registering a hostkey verification mechanism."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-310"
                }
              ]
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          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://godoc.org/golang.org/x/crypto/ssh",
              "refsource": "MISC",
              "url": "https://godoc.org/golang.org/x/crypto/ssh"
            },
            {
              "name": "https://github.com/golang/go/issues/19767",
              "refsource": "CONFIRM",
              "url": "https://github.com/golang/go/issues/19767"
            },
            {
              "name": "https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/",
              "refsource": "MISC",
              "url": "https://bridge.grumpy-troll.org/2017/04/golang-ssh-security/"
            },
            {
              "name": "https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991",
              "refsource": "CONFIRM",
              "url": "https://github.com/golang/crypto/commit/e4e2799dd7aab89f583e1d898300d96367750991"
            },
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              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/97481"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
    "assignerShortName": "certcc",
    "cveId": "CVE-2017-3204",
    "datePublished": "2017-04-04T14:00:00",
    "dateReserved": "2016-12-05T00:00:00",
    "dateUpdated": "2024-08-05T14:16:28.305Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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