Vulnerability-Lookup

CNVD-2021-103409

Vulnerability from cnvd - Published: 2021-12-30

Title

Digi RealPort存在未明漏洞

Description

Digi RealPort是一种专有的Serial-over-LAN封装协议。它通过将ICS协议数据封装在基于TCP的协议中，为网络上任何地方的串行设备提供虚拟连接。 Digi RealPort存在安全漏洞，攻击者可利用该漏洞向服务器发送未经身份验证的请求。

Severity

高

Patch Name

Digi RealPort存在未明漏洞的补丁

Patch Description

Digi RealPort是一种专有的Serial-over-LAN封装协议。它通过将ICS协议数据封装在基于TCP的协议中，为网络上任何地方的串行设备提供虚拟连接。 Digi RealPort存在安全漏洞，攻击者可利用该漏洞向服务器发送未经身份验证的请求。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt

Reference

https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt

Impacted products

Name
Digi RealPort <=4.8.488.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-36767"
    }
  },
  "description": "Digi RealPort\u662f\u4e00\u79cd\u4e13\u6709\u7684Serial-over-LAN\u5c01\u88c5\u534f\u8bae\u3002\u5b83\u901a\u8fc7\u5c06ICS\u534f\u8bae\u6570\u636e\u5c01\u88c5\u5728\u57fa\u4e8eTCP\u7684\u534f\u8bae\u4e2d\uff0c\u4e3a\u7f51\u7edc\u4e0a\u4efb\u4f55\u5730\u65b9\u7684\u4e32\u884c\u8bbe\u5907\u63d0\u4f9b\u865a\u62df\u8fde\u63a5\u3002\n\nDigi RealPort\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5411\u670d\u52a1\u5668\u53d1\u9001\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8bf7\u6c42\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-103409",
  "openTime": "2021-12-30",
  "patchDescription": "Digi RealPort\u662f\u4e00\u79cd\u4e13\u6709\u7684Serial-over-LAN\u5c01\u88c5\u534f\u8bae\u3002\u5b83\u901a\u8fc7\u5c06ICS\u534f\u8bae\u6570\u636e\u5c01\u88c5\u5728\u57fa\u4e8eTCP\u7684\u534f\u8bae\u4e2d\uff0c\u4e3a\u7f51\u7edc\u4e0a\u4efb\u4f55\u5730\u65b9\u7684\u4e32\u884c\u8bbe\u5907\u63d0\u4f9b\u865a\u62df\u8fde\u63a5\u3002\r\n\r\nDigi RealPort\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5411\u670d\u52a1\u5668\u53d1\u9001\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u8bf7\u6c42\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Digi RealPort\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Digi RealPort \u003c=4.8.488.0"
  },
  "referenceLink": "https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt",
  "serverity": "\u9ad8",
  "submitTime": "2021-10-11",
  "title": "Digi RealPort\u5b58\u5728\u672a\u660e\u6f0f\u6d1e"
}

CVE-2021-36767 (GCVE-0-2021-36767)

Vulnerability from cvelistv5 – Published: 2021-10-08 14:22 – Updated: 2024-08-04 01:01

Summary

In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server's access password. The attacker may then crack this hash offline in order to successfully login to the server.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

1 reference

URL	Tags
https://raw.githubusercontent.com/reidmefirst/vul…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T01:01:59.227Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server\u0027s access password. The attacker may then crack this hash offline in order to successfully login to the server."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-01-01T00:30:16.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-36767",
          "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": "In Digi RealPort through 4.10.490, authentication relies on a challenge-response mechanism that gives access to the server password, making the protection ineffective. An attacker may send an unauthenticated request to the server. The server will reply with a weakly-hashed version of the server\u0027s access password. The attacker may then crack this hash offline in order to successfully login to the server."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt",
              "refsource": "MISC",
              "url": "https://raw.githubusercontent.com/reidmefirst/vuln-disclosure/main/2021-02.txt"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-36767",
    "datePublished": "2021-10-08T14:22:57.000Z",
    "dateReserved": "2021-07-16T00:00:00.000Z",
    "dateUpdated": "2024-08-04T01:01:59.227Z",
    "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.

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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2021-103409

CVE-2021-36767 (GCVE-0-2021-36767)

Tags

Sightings

Nomenclature

Related by attack behaviour