cnvd - cnvd-2021-33998

CNVD-2021-33998

Vulnerability from cnvd - Published: 2021-05-11

Title

Tenda AC11栈缓冲区溢出漏洞（CNVD-2021-33998）

Description

Tenda AC11是一款AC1200双频千兆WiFi路由器。 Tenda AC11 02.03.01.104_CN及更早版本固件中的/goform/setmac存在栈缓冲区溢出漏洞。攻击者可通过特制post请求利用该漏洞在系统上执行任意代码。

Severity

高

Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.tendacn.com/en/product/ac11.html

Reference

https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3

Impacted products

Name
Tenda AC11 <=02.03.01.104_CN

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-31755",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-31755"
    }
  },
  "description": "Tenda AC11\u662f\u4e00\u6b3eAC1200\u53cc\u9891\u5343\u5146WiFi\u8def\u7531\u5668\u3002\n\nTenda AC11 02.03.01.104_CN\u53ca\u66f4\u65e9\u7248\u672c\u56fa\u4ef6\u4e2d\u7684/goform/setmac\u5b58\u5728\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u7279\u5236post\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.tendacn.com/en/product/ac11.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-33998",
  "openTime": "2021-05-11",
  "products": {
    "product": "Tenda AC11 \u003c=02.03.01.104_CN"
  },
  "referenceLink": "https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3",
  "serverity": "\u9ad8",
  "submitTime": "2021-05-08",
  "title": "Tenda AC11\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-33998\uff09"
}

CVE-2021-31755 (GCVE-0-2021-31755)

Vulnerability from cvelistv5 – Published: 2021-05-07 22:01 – Updated: 2025-10-21 23:25

Summary

An issue was discovered on Tenda AC11 devices with firmware through 02.03.01.104_CN. A stack buffer overflow vulnerability in /goform/setmac allows attackers to execute arbitrary code on the system via a crafted post request.

Severity ?

9.8 (Critical)


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

CWE

Assigner

mitre

References

URL

Tags

https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3

x_refsource_MISC

Show details on NVD website

JSON

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              "x_transferred"
            ],
            "url": "https://github.com/Yu3H0/IoT_CVE/tree/main/Tenda/CVE_3"
          }
        ],
        "title": "CVE Program Container"
      },
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "baseScore": 9.8,
              "baseSeverity": "CRITICAL",
              "confidentialityImpact": "HIGH",
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              "privilegesRequired": "NONE",
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              "version": "3.1"
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                  },
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                  },
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                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-02-04T19:44:13.561933Z",
                "version": "2.0.3"
              },
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          },
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            "other": {
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    "cna": {
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}

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-2021-33998

CVE-2021-31755 (GCVE-0-2021-31755)

Tags

Sightings

Nomenclature