cnvd - cnvd-2021-94718

cnvd-2021-94718

Vulnerability from cnvd

Title: D-Link DIR-809 formVirtualApp缓冲区溢出漏洞

Description:

D-Link DIR-809是中国友讯（D-Link）公司的一款双频路由器。

D-Link DIR-809 设备固件版本DIR-809Ax_FW1.12WWB03_20190410存在缓冲区溢出漏洞，该漏洞源于软件formVirtualApp的FUN_8004776c函数中存在堆栈缓冲区溢出漏洞。此漏洞是通过精心设计的POST请求触发的。攻击者可利用该漏洞获取服务器控制权限。

Severity: 高

Patch Name: D-Link DIR-809 formVirtualApp缓冲区溢出漏洞的补丁

Patch Description:

D-Link DIR-809是中国友讯（D-Link）公司的一款双频路由器。

D-Link DIR-809 设备固件版本DIR-809Ax_FW1.12WWB03_20190410存在缓冲区溢出漏洞，该漏洞源于软件formVirtualApp的FUN_8004776c函数中存在堆栈缓冲区溢出漏洞。此漏洞是通过精心设计的POST请求触发的。攻击者可利用该漏洞获取服务器控制权限。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:

厂商已发布了漏洞修复程序，请及时关注更新： https://www.dlink.com

Reference: https://www.dlink.com/en/security-bulletin/

Impacted products

Name
D-Link DIR-809 Ax_FW1.12WWB03_20190410

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-33266",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-33266"
    }
  },
  "description": "D-Link DIR-809\u662f\u4e2d\u56fd\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u53cc\u9891\u8def\u7531\u5668\u3002\n\nD-Link DIR-809 \u8bbe\u5907\u56fa\u4ef6\u7248\u672cDIR-809Ax_FW1.12WWB03_20190410\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f6f\u4ef6formVirtualApp\u7684FUN_8004776c\u51fd\u6570\u4e2d\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u6b64\u6f0f\u6d1e\u662f\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684POST\u8bf7\u6c42\u89e6\u53d1\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u670d\u52a1\u5668\u63a7\u5236\u6743\u9650\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://www.dlink.com",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94718",
  "openTime": "2021-12-06",
  "patchDescription": "D-Link DIR-809\u662f\u4e2d\u56fd\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u53cc\u9891\u8def\u7531\u5668\u3002\r\n\r\nD-Link DIR-809 \u8bbe\u5907\u56fa\u4ef6\u7248\u672cDIR-809Ax_FW1.12WWB03_20190410\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u8f6f\u4ef6formVirtualApp\u7684FUN_8004776c\u51fd\u6570\u4e2d\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u3002\u6b64\u6f0f\u6d1e\u662f\u901a\u8fc7\u7cbe\u5fc3\u8bbe\u8ba1\u7684POST\u8bf7\u6c42\u89e6\u53d1\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u83b7\u53d6\u670d\u52a1\u5668\u63a7\u5236\u6743\u9650\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": "D-Link DIR-809 formVirtualApp\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "D-Link DIR-809 Ax_FW1.12WWB03_20190410"
  },
  "referenceLink": "https://www.dlink.com/en/security-bulletin/",
  "serverity": "\u9ad8",
  "submitTime": "2021-12-04",
  "title": "D-Link DIR-809 formVirtualApp\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}

CVE-2021-33266 (GCVE-0-2021-33266)

Vulnerability from cvelistv5

Published

2021-12-01 21:20

Modified

2024-08-03 23:42

Severity ?

CWE

Summary

D-Link DIR-809 devices with firmware through DIR-809Ax_FW1.12WWB03_20190410 were discovered to contain a stack buffer overflow vulnerability in the function FUN_8004776c in /formVirtualApp. This vulnerability is triggered via a crafted POST request.

References

▼	URL	Tags
	https://www.dlink.com/en/security-bulletin/	x_refsource_MISC
	https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln04	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
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            ],
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          },
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            ],
            "url": "https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln04"
          }
        ],
        "title": "CVE Program Container"
      }
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        "shortName": "mitre"
      },
      "references": [
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          "url": "https://www.dlink.com/en/security-bulletin/"
        },
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          "tags": [
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          ],
          "url": "https://github.com/Lnkvct/IoT-poc/tree/master/D-Link-DIR809/vuln04"
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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