Vulnerability-Lookup

CNVD-2022-65335

Vulnerability from cnvd - Published: 2022-09-23

Title

MELAG FTP Server身份验证错误漏洞

Description

MELAG FTP Server是德国MELAG公司的一个FTP服务器。 MELAG FTP Server 2.2.0.4版本存在身份验证错误漏洞，该漏洞源于身份验证检查不完整。远程攻击者可利用该漏洞可使用有效的用户名访问本地文件。

Severity

中

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.melag.com/en/

Reference

https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/

Impacted products

Name
MELAG MELAG FTP Server 2.2.0.4

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41638",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41638"
    }
  },
  "description": "MELAG FTP Server\u662f\u5fb7\u56fdMELAG\u516c\u53f8\u7684\u4e00\u4e2aFTP\u670d\u52a1\u5668\u3002\n\nMELAG FTP Server 2.2.0.4\u7248\u672c\u5b58\u5728\u8eab\u4efd\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8eab\u4efd\u9a8c\u8bc1\u68c0\u67e5\u4e0d\u5b8c\u6574\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u53ef\u4f7f\u7528\u6709\u6548\u7684\u7528\u6237\u540d\u8bbf\u95ee\u672c\u5730\u6587\u4ef6\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.melag.com/en/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-65335",
  "openTime": "2022-09-23",
  "products": {
    "product": "MELAG MELAG FTP Server 2.2.0.4"
  },
  "referenceLink": "https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/",
  "serverity": "\u4e2d",
  "submitTime": "2022-06-28",
  "title": "MELAG FTP Server\u8eab\u4efd\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-41638 (GCVE-0-2021-41638)

Vulnerability from cvelistv5 – Published: 2022-06-24 11:44 – Updated: 2024-08-04 03:15

Summary

The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username.

Severity

No CVSS data available.

CWE

Assigner

mitre

References

1 reference

URL	Tags
https://www.securesystems.de/blog/advisory-and-ex…	x_refsource_MISC

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T03:15:29.322Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-06-24T11:44:02.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-41638",
          "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": "The authentication checks of the MELAG FTP Server in version 2.2.0.4 are incomplete, which allows a remote attacker to access local files only by using a valid username."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/",
              "refsource": "MISC",
              "url": "https://www.securesystems.de/blog/advisory-and-exploitation-the-melag-ftp-server/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-41638",
    "datePublished": "2022-06-24T11:44:02.000Z",
    "dateReserved": "2021-09-27T00:00:00.000Z",
    "dateUpdated": "2024-08-04T03:15:29.322Z",
    "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.

Action not permitted

CNVD-2022-65335

CVE-2021-41638 (GCVE-0-2021-41638)

Tags

Sightings

Nomenclature