Vulnerability-Lookup

CNVD-2022-20157

Vulnerability from cnvd - Published: 2022-03-11

Title

Tenda-AX3缓冲区溢出漏洞（CNVD-2022-20157）

Description

Tenda-AX3是中国腾达（Tenda）公司的一个双频无线路由器。 Tenda-AX3存在缓冲区溢出漏洞，该漏洞源于Tenda-AX3路由器V16.03.12.10_CN的formSetPPTPServer函数存在栈缓冲区溢出漏洞。目前没有详细的漏洞细节提供。

Severity

高

Patch Name

Tenda-AX3缓冲区溢出漏洞（CNVD-2022-20157）的补丁

Patch Description

Tenda-AX3是中国腾达（Tenda）公司的一个双频无线路由器。 Tenda-AX3存在缓冲区溢出漏洞，该漏洞源于Tenda-AX3路由器V16.03.12.10_CN的formSetPPTPServer函数存在栈缓冲区溢出漏洞。目前没有详细的漏洞细节提供。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

目前厂商已发布升级补丁以修复漏洞，详情请关注厂商主页： https://www.tenda.com.cn/default.html

Reference

https://cxsecurity.com/cveshow/CVE-2021-46394/

Impacted products

Name
Tenda ax3 firmware 16.03.12.10

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-46394"
    }
  },
  "description": "Tenda-AX3\u662f\u4e2d\u56fd\u817e\u8fbe\uff08Tenda\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u53cc\u9891\u65e0\u7ebf\u8def\u7531\u5668\u3002\n\nTenda-AX3\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eTenda-AX3\u8def\u7531\u5668V16.03.12.10_CN\u7684formSetPPTPServer\u51fd\u6570\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002 \u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://www.tenda.com.cn/default.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-20157",
  "openTime": "2022-03-11",
  "patchDescription": "Tenda-AX3\u662f\u4e2d\u56fd\u817e\u8fbe\uff08Tenda\uff09\u516c\u53f8\u7684\u4e00\u4e2a\u53cc\u9891\u65e0\u7ebf\u8def\u7531\u5668\u3002\r\n\r\nTenda-AX3\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eTenda-AX3\u8def\u7531\u5668V16.03.12.10_CN\u7684formSetPPTPServer\u51fd\u6570\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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": "Tenda-AX3\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2022-20157\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Tenda ax3 firmware 16.03.12.10"
  },
  "referenceLink": "https://cxsecurity.com/cveshow/CVE-2021-46394/",
  "serverity": "\u9ad8",
  "submitTime": "2022-03-08",
  "title": "Tenda-AX3\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2022-20157\uff09"
}

CVE-2021-46394 (GCVE-0-2021-46394)

Vulnerability from cvelistv5 – Published: 2022-03-04 13:05 – Updated: 2024-08-04 05:02

Summary

There is a stack buffer overflow vulnerability in the formSetPPTPServer function of Tenda-AX3 router V16.03.12.10_CN. The v13 variable is directly retrieved from the http request parameter startIp. Then v13 will be splice to stack by function sscanf without any security check, which causes stack overflow. By POSTing the page /goform/SetPptpServerCfg with proper startIp, the attacker can easily perform remote code execution with carefully crafted overflow data.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

https://github.com/sec-bin/IoT-CVE/tree/main/Tend…

x_refsource_MISC

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T05:02:11.538Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "There is a stack buffer overflow vulnerability in the formSetPPTPServer function of Tenda-AX3 router V16.03.12.10_CN. The v13 variable is directly retrieved from the http request parameter startIp. Then v13 will be splice to stack by function sscanf without any security check, which causes stack overflow. By POSTing the page /goform/SetPptpServerCfg with proper startIp, the attacker can easily perform remote code execution with carefully crafted overflow data."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "n/a",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-03-04T13:05:00",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2021-46394",
          "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": "There is a stack buffer overflow vulnerability in the formSetPPTPServer function of Tenda-AX3 router V16.03.12.10_CN. The v13 variable is directly retrieved from the http request parameter startIp. Then v13 will be splice to stack by function sscanf without any security check, which causes stack overflow. By POSTing the page /goform/SetPptpServerCfg with proper startIp, the attacker can easily perform remote code execution with carefully crafted overflow data."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "n/a"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4",
              "refsource": "MISC",
              "url": "https://github.com/sec-bin/IoT-CVE/tree/main/Tenda/AX3/4"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2021-46394",
    "datePublished": "2022-03-04T13:05:00",
    "dateReserved": "2022-01-18T00:00:00",
    "dateUpdated": "2024-08-04T05:02:11.538Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date

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-2022-20157

CVE-2021-46394 (GCVE-0-2021-46394)

Tags

Sightings

Nomenclature