Vulnerability-Lookup

CNVD-2020-49929

Vulnerability from cnvd - Published: 2020-09-02

Title

wolfSSL信息泄露漏洞（CNVD-2020-49929）

Description

wolfSSL（前称CyaSSL）是美国wolfSSL公司的一个针对嵌入式系统开发人员使用的小的、可移植的嵌入式SSL编程库。 wolfSSL 4.5.0之前版本存在信息泄露漏洞。该漏洞与受影响版本TLS 1.3客户端状态机的错误实现有关。SanityCheckTls13MsgReceived()中以WAIT_CERT_CR状态错误处理了TLS 1.3服务器数据。攻击者可以利用该漏洞模拟任何TLS 1.3服务器，并使用wolfSSL库和这些TLS服务器在客户端之间读取或修改潜在的敏感信息。

Severity

中

Patch Name

wolfSSL信息泄露漏洞（CNVD-2020-49929）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://nvd.nist.gov/vuln/detail/CVE-2020-24613

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-24613

Impacted products

Name
wolfSSL wolfSSL（前称CyaSSL） <4.5.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-24613",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-24613"
    }
  },
  "description": "wolfSSL\uff08\u524d\u79f0CyaSSL\uff09\u662f\u7f8e\u56fdwolfSSL\u516c\u53f8\u7684\u4e00\u4e2a\u9488\u5bf9\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u7684\u3001\u53ef\u79fb\u690d\u7684\u5d4c\u5165\u5f0fSSL\u7f16\u7a0b\u5e93\u3002\n\nwolfSSL 4.5.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4e0e\u53d7\u5f71\u54cd\u7248\u672cTLS 1.3\u5ba2\u6237\u7aef\u72b6\u6001\u673a\u7684\u9519\u8bef\u5b9e\u73b0\u6709\u5173\u3002SanityCheckTls13MsgReceived()\u4e2d\u4ee5WAIT_CERT_CR\u72b6\u6001\u9519\u8bef\u5904\u7406\u4e86TLS 1.3\u670d\u52a1\u5668\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u6a21\u62df\u4efb\u4f55TLS 1.3\u670d\u52a1\u5668\uff0c\u5e76\u4f7f\u7528wolfSSL\u5e93\u548c\u8fd9\u4e9bTLS\u670d\u52a1\u5668\u5728\u5ba2\u6237\u7aef\u4e4b\u95f4\u8bfb\u53d6\u6216\u4fee\u6539\u6f5c\u5728\u7684\u654f\u611f\u4fe1\u606f\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://nvd.nist.gov/vuln/detail/CVE-2020-24613",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-49929",
  "openTime": "2020-09-02",
  "patchDescription": "wolfSSL\uff08\u524d\u79f0CyaSSL\uff09\u662f\u7f8e\u56fdwolfSSL\u516c\u53f8\u7684\u4e00\u4e2a\u9488\u5bf9\u5d4c\u5165\u5f0f\u7cfb\u7edf\u5f00\u53d1\u4eba\u5458\u4f7f\u7528\u7684\u5c0f\u7684\u3001\u53ef\u79fb\u690d\u7684\u5d4c\u5165\u5f0fSSL\u7f16\u7a0b\u5e93\u3002\r\n\r\nwolfSSL 4.5.0\u4e4b\u524d\u7248\u672c\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u4e0e\u53d7\u5f71\u54cd\u7248\u672cTLS 1.3\u5ba2\u6237\u7aef\u72b6\u6001\u673a\u7684\u9519\u8bef\u5b9e\u73b0\u6709\u5173\u3002SanityCheckTls13MsgReceived()\u4e2d\u4ee5WAIT_CERT_CR\u72b6\u6001\u9519\u8bef\u5904\u7406\u4e86TLS 1.3\u670d\u52a1\u5668\u6570\u636e\u3002\u653b\u51fb\u8005\u53ef\u4ee5\u5229\u7528\u8be5\u6f0f\u6d1e\u6a21\u62df\u4efb\u4f55TLS 1.3\u670d\u52a1\u5668\uff0c\u5e76\u4f7f\u7528wolfSSL\u5e93\u548c\u8fd9\u4e9bTLS\u670d\u52a1\u5668\u5728\u5ba2\u6237\u7aef\u4e4b\u95f4\u8bfb\u53d6\u6216\u4fee\u6539\u6f5c\u5728\u7684\u654f\u611f\u4fe1\u606f\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": "wolfSSL\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2020-49929\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "wolfSSL wolfSSL\uff08\u524d\u79f0CyaSSL\uff09 \u003c4.5.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-24613",
  "serverity": "\u4e2d",
  "submitTime": "2020-08-28",
  "title": "wolfSSL\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2020-49929\uff09"
}

CVE-2020-24613 (GCVE-0-2020-24613)

Vulnerability from cvelistv5 – Published: 2020-08-24 21:06 – Updated: 2024-08-04 15:19

Summary

wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root Scorecard

References

1 reference

URL	Tags
https://research.nccgroup.com/2020/08/24/technica…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T15:19:09.126Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://research.nccgroup.com/2020/08/24/technical-advisory-wolfssl-tls-1-3-client-man-in-the-middle-attack/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-08-24T21:06:22.000Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://research.nccgroup.com/2020/08/24/technical-advisory-wolfssl-tls-1-3-client-man-in-the-middle-attack/"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2020-24613",
          "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": "wolfSSL before 4.5.0 mishandles TLS 1.3 server data in the WAIT_CERT_CR state, within SanityCheckTls13MsgReceived() in tls13.c. This is an incorrect implementation of the TLS 1.3 client state machine. This allows attackers in a privileged network position to completely impersonate any TLS 1.3 servers, and read or modify potentially sensitive information between clients using the wolfSSL library and these TLS servers."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://research.nccgroup.com/2020/08/24/technical-advisory-wolfssl-tls-1-3-client-man-in-the-middle-attack/",
              "refsource": "MISC",
              "url": "https://research.nccgroup.com/2020/08/24/technical-advisory-wolfssl-tls-1-3-client-man-in-the-middle-attack/"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2020-24613",
    "datePublished": "2020-08-24T21:06:22.000Z",
    "dateReserved": "2020-08-24T00:00:00.000Z",
    "dateUpdated": "2024-08-04T15:19:09.126Z",
    "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-2020-49929

CVE-2020-24613 (GCVE-0-2020-24613)

Tags

Sightings

Nomenclature

Related by attack behaviour