Vulnerability-Lookup

CNVD-2025-13898

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。该漏洞源于文件/cgi-bin/cstecgi.cgi？action=save&setting的函数getSaveConfig作参数http_host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-2024-7335

Impacted products

Name
TOTOLINK EX200 V4.0.3c.7646_B20201211

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2024-7335"
    }
  },
  "description": "\u200cTOTOLINK 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\u6587\u4ef6/cgi-bin/cstecgi.cgi\uff1faction=save\u0026setting\u7684\u51fd\u6570getSaveConfig\u4f5c\u53c2\u6570http_host\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-2025-13898",
  "openTime": "2025-06-27",
  "products": {
    "product": "TOTOLINK EX200 V4.0.3c.7646_B20201211"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2024-7335",
  "serverity": "\u9ad8",
  "submitTime": "2024-08-01",
  "title": "TOTOLINK EX200\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2024-7335 (GCVE-0-2024-7335)

Vulnerability from cvelistv5 – Published: 2024-08-01 02:00 – Updated: 2024-08-06 19:39

Title

TOTOLINK EX200 getSaveConfig buffer overflow

Summary

A vulnerability classified as critical has been found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected is the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save&setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-273258 is the identifier assigned to this vulnerability. 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

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-08-06 19:38 UTC

CWE

CWE-120 - Buffer Overflow

Assigner

VulDB mitre root

References

4 references

URL	Tags
https://vuldb.com/?id.273258	vdb-entrytechnical-description
https://vuldb.com/?ctiid.273258	signaturepermissions-required
https://vuldb.com/?submit.379313	third-party-advisory
https://github.com/abcdefg-png/IoT-vulnerable/blo…	exploit

Impacted products

2 products

Vendor	Product	Version
TOTOLINK	EX200	Affected: 4.0.3c.7646_B20201211
totolink	ex200_firmware	Affected: 4.0.3c.7646_b20201211 cpe:2.3:o:totolink:ex200_firmware: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-2024-7335",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-08-06T19:38:43.936600Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-08-06T19:39:28.167Z",
          "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 has been found in TOTOLINK EX200 4.0.3c.7646_B20201211. Affected is the function getSaveConfig of the file /cgi-bin/cstecgi.cgi?action=save\u0026setting. The manipulation of the argument http_host leads to buffer overflow. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. VDB-273258 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way."
        },
        {
          "lang": "de",
          "value": "Es wurde eine kritische Schwachstelle in TOTOLINK EX200 4.0.3c.7646_B20201211 entdeckt. Dabei betrifft es die Funktion getSaveConfig der Datei /cgi-bin/cstecgi.cgi?action=save\u0026setting. Durch das Manipulieren des Arguments http_host mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei \u00fcber das Netzwerk erfolgen. 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": "2024-08-01T02:00:06.560Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-273258 | TOTOLINK EX200 getSaveConfig buffer overflow",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.273258"
        },
        {
          "name": "VDB-273258 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.273258"
        },
        {
          "name": "Submit #379313 | TOTOLINK EX200 V4.0.3c.7646_B20201211 buffer overflow",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.379313"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/abcdefg-png/IoT-vulnerable/blob/main/TOTOLINK/EX200/getSaveConfig.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": "2024-07-31T14:35:41.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "TOTOLINK EX200 getSaveConfig buffer overflow"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2024-7335",
    "datePublished": "2024-08-01T02:00:06.560Z",
    "dateReserved": "2024-07-31T12:30:18.894Z",
    "dateUpdated": "2024-08-06T19:39:28.167Z",
    "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.

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CNVD-2025-13898

CVE-2024-7335 (GCVE-0-2024-7335)

Tags

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Nomenclature

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