Vulnerability-Lookup

CNVD-2020-53323

Vulnerability from cnvd - Published: 2020-09-23

Title

Cesanta Mongoose缓冲区溢出漏洞

Description

Cesanta Mongoose是爱尔兰Cesanta公司的一套嵌入式服务器库，它包括TCP、HTTP客户端和服务器、WenSocket客户端和服务器等功能。 Cesanta Mongoose 6.18版本存在缓冲区溢出漏洞。该漏洞源于mg_get_http_heade函数，攻击者可利用该漏洞精心制作的HTTP标头可以利用此bug。

Severity

中

Patch Name

Cesanta Mongoose缓冲区溢出漏洞的补丁

Patch Description

Formal description

厂商已发布了漏洞修复程序，请及时关注更新： https://github.com/cesanta/mongoose/issues/1135

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-25756

Impacted products

Name
Cesanta Mongoose Cesanta Mongoose 6.18

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-25756",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-25756"
    }
  },
  "description": "Cesanta Mongoose\u662f\u7231\u5c14\u5170Cesanta\u516c\u53f8\u7684\u4e00\u5957\u5d4c\u5165\u5f0f\u670d\u52a1\u5668\u5e93\uff0c\u5b83\u5305\u62ecTCP\u3001HTTP\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u3001WenSocket\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7b49\u529f\u80fd\u3002\n\nCesanta Mongoose 6.18\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8emg_get_http_heade\u51fd\u6570\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7cbe\u5fc3\u5236\u4f5c\u7684HTTP\u6807\u5934\u53ef\u4ee5\u5229\u7528\u6b64bug\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://github.com/cesanta/mongoose/issues/1135",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-53323",
  "openTime": "2020-09-23",
  "patchDescription": "Cesanta Mongoose\u662f\u7231\u5c14\u5170Cesanta\u516c\u53f8\u7684\u4e00\u5957\u5d4c\u5165\u5f0f\u670d\u52a1\u5668\u5e93\uff0c\u5b83\u5305\u62ecTCP\u3001HTTP\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u3001WenSocket\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u7b49\u529f\u80fd\u3002\r\n\r\nCesanta Mongoose 6.18\u7248\u672c\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8emg_get_http_heade\u51fd\u6570\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7cbe\u5fc3\u5236\u4f5c\u7684HTTP\u6807\u5934\u53ef\u4ee5\u5229\u7528\u6b64bug\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": "Cesanta Mongoose\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cesanta Mongoose Cesanta Mongoose 6.18"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-25756",
  "serverity": "\u4e2d",
  "submitTime": "2020-09-22",
  "title": "Cesanta Mongoose\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2020-25756 (GCVE-0-2020-25756)

Vulnerability from cvelistv5 – Published: 2020-09-18 04:44 – Updated: 2024-08-04 15:40 Disputed

Summary

A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated "this will not happen in practice.

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-06-26 19:58 UTC

CWE

Assigner

mitre CNA under the mitre root

CNA scorecard E 28/100 over 2310 records in the last 180 days details

References

1 reference

URL	Tags
https://github.com/cesanta/mongoose/issues/1135	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-25756",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-06-26T19:58:00.766760Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-06-26T19:58:12.444Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      },
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:40:36.991Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/cesanta/mongoose/issues/1135"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated \"this will not happen in practice."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-09-18T04:44:50.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/cesanta/mongoose/issues/1135"
        }
      ],
      "tags": [
        "disputed"
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-25756",
          "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": "** DISPUTED ** A buffer overflow vulnerability exists in the mg_get_http_header function in Cesanta Mongoose 6.18 due to a lack of bounds checking. A crafted HTTP header can exploit this bug. NOTE: a committer has stated \"this will not happen in practice.\""
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/cesanta/mongoose/issues/1135",
              "refsource": "MISC",
              "url": "https://github.com/cesanta/mongoose/issues/1135"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-25756",
    "datePublished": "2020-09-18T04:44:50.000Z",
    "dateReserved": "2020-09-18T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:40:36.991Z",
    "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-2020-53323

CVE-2020-25756 (GCVE-0-2020-25756)

Tags

Sightings

Nomenclature

Related by attack behaviour