cnvd - cnvd-2025-13899

CNVD-2025-13899

Vulnerability from cnvd - Published: 2025-06-27

Title

TOTOLINK EX200缓冲区溢出漏洞

Description

TOTOLINK EX200是一款2.4G无线N范围扩展器，旨在扩大现有Wi-Fi网络的覆盖范围。 TOTOLINK EX200存在缓冲区溢出漏洞。该漏洞源于/cgi-bin/cstecgi.cgi文件的函数loginauth，对参数http_host的操作会导致缓冲区溢出。目前没有详细的漏洞细节提供。

Severity

高

Formal description

目前厂商尚未发布升级程序修复该安全问题，详情见厂商官网： https://www.totolink.net/

Reference

https://nvd.nist.gov/vuln/detail/CVE-2024-7336

Impacted products

Name
TOTOLINK EX200 V4.0.3c.7646_B20201211

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2024-7336"
    }
  },
  "description": "TOTOLINK EX200\u662f\u4e00\u6b3e2.4G\u65e0\u7ebfN\u8303\u56f4\u6269\u5c55\u5668\uff0c\u65e8\u5728\u6269\u5927\u73b0\u6709Wi-Fi\u7f51\u7edc\u7684\u8986\u76d6\u8303\u56f4\u3002\n\nTOTOLINK EX200\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e/cgi-bin/cstecgi.cgi\u6587\u4ef6\u7684\u51fd\u6570loginauth\uff0c\u5bf9\u53c2\u6570http_host\u7684\u64cd\u4f5c\u4f1a\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5c1a\u672a\u53d1\u5e03\u5347\u7ea7\u7a0b\u5e8f\u4fee\u590d\u8be5\u5b89\u5168\u95ee\u9898\uff0c\u8be6\u60c5\u89c1\u5382\u5546\u5b98\u7f51\uff1a\r\nhttps://www.totolink.net/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2025-13899",
  "openTime": "2025-06-27",
  "products": {
    "product": "TOTOLINK EX200 V4.0.3c.7646_B20201211"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2024-7336",
  "serverity": "\u9ad8",
  "submitTime": "2024-08-01",
  "title": "TOTOLINK EX200\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2024-7336 (GCVE-0-2024-7336)

Vulnerability from cvelistv5 – Published: 2024-08-01 02:31 – Updated: 2024-08-01 13:30

Title

TOTOLINK EX200 cstecgi.cgi loginauth buffer overflow

Summary

A vulnerability classified as critical was found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-273259. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Severity ?

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

8.8 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-120 - Buffer Overflow

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.273259	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.273259	signaturepermissions-required
	https://vuldb.com/?submit.379314	third-party-advisory
	https://github.com/abcdefg-png/IoT-vulnerable/blo…	exploit

Impacted products

	Vendor	Product	Version
	TOTOLINK	EX200	Affected: 4.0.3c.7646_B20201211

Credits

yhryhryhr_tu (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:o:totolink:ex200_firmware:4.0.3c.7646_b20201211:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "ex200_firmware",
            "vendor": "totolink",
            "versions": [
              {
                "status": "affected",
                "version": "4.0.3c.7646_b20201211"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-7336",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-01T13:28:52.459505Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-08-01T13:30:01.939Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "EX200",
          "vendor": "TOTOLINK",
          "versions": [
            {
              "status": "affected",
              "version": "4.0.3c.7646_B20201211"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "yhryhryhr_tu (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability classified as critical was found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected by this vulnerability is the function loginauth of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument http_host leads to buffer overflow. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-273259. NOTE: The vendor was contacted early about this disclosure but did not respond in any way."
        },
        {
          "lang": "de",
          "value": "In TOTOLINK EX200 4.0.3c.7646_B20201211 wurde eine kritische Schwachstelle entdeckt. Hierbei betrifft es die Funktion loginauth der Datei /cgi-bin/cstecgi.cgi. Durch Manipulieren des Arguments http_host mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff \u00fcber das Netzwerk. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 9,
            "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-120",
              "description": "CWE-120 Buffer Overflow",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-08-01T02:31:04.790Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-273259 | TOTOLINK EX200 cstecgi.cgi loginauth buffer overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.273259"
        },
        {
          "name": "VDB-273259 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.273259"
        },
        {
          "name": "Submit #379314 | TOTOLINK EX200 V4.0.3c.7646_B20201211 buffer overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.379314"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/EX200/loginauth.md"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2024-07-31T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2024-07-31T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2024-07-31T14:35:43.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "TOTOLINK EX200 cstecgi.cgi loginauth buffer overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2024-7336",
    "datePublished": "2024-08-01T02:31:04.790Z",
    "dateReserved": "2024-07-31T12:30:21.759Z",
    "dateUpdated": "2024-08-01T13:30:01.939Z",
    "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-2025-13899

CVE-2024-7336 (GCVE-0-2024-7336)

Tags

Sightings

Nomenclature