cnvd - cnvd-2021-67522

cnvd-2021-67522

Vulnerability from cnvd

Title: D-Link DAP-2020堆栈缓冲区溢出漏洞（CNVD-2021-67522）

Description:

D-Link DAP-2020是一款无线N接入点。

D-Link DAP-2020存在堆栈缓冲区溢出漏洞，该漏洞是由于webproc端点中未能正确边界检查造成的。攻击者可利用漏洞导致缓冲区溢出并在系统上执行任意代码。

Severity: 高

Patch Name: D-Link DAP-2020堆栈缓冲区溢出漏洞（CNVD-2021-67522）的补丁

Patch Description:

D-Link DAP-2020是一款无线N接入点。

D-Link DAP-2020存在堆栈缓冲区溢出漏洞，该漏洞是由于webproc端点中未能正确边界检查造成的。攻击者可利用漏洞导致缓冲区溢出并在系统上执行任意代码。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://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201

Reference: https://www.zerodayinitiative.com/advisories/ZDI-21-977/

Impacted products

Name
D-Link DAP-2020 <=1.01

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34861",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34861"
    }
  },
  "description": "D-Link DAP-2020\u662f\u4e00\u6b3e\u65e0\u7ebfN\u63a5\u5165\u70b9\u3002\n\nD-Link DAP-2020\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8ewebproc\u7aef\u70b9\u4e2d\u672a\u80fd\u6b63\u786e\u8fb9\u754c\u68c0\u67e5\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u5e76\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-67522",
  "openTime": "2021-09-02",
  "patchDescription": "D-Link DAP-2020\u662f\u4e00\u6b3e\u65e0\u7ebfN\u63a5\u5165\u70b9\u3002\r\n\r\nD-Link DAP-2020\u5b58\u5728\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u662f\u7531\u4e8ewebproc\u7aef\u70b9\u4e2d\u672a\u80fd\u6b63\u786e\u8fb9\u754c\u68c0\u67e5\u9020\u6210\u7684\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u7f13\u51b2\u533a\u6ea2\u51fa\u5e76\u5728\u7cfb\u7edf\u4e0a\u6267\u884c\u4efb\u610f\u4ee3\u7801\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 DAP-2020\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-67522\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "D-Link DAP-2020 \u003c=1.01"
  },
  "referenceLink": "https://www.zerodayinitiative.com/advisories/ZDI-21-977/",
  "serverity": "\u9ad8",
  "submitTime": "2021-08-19",
  "title": "D-Link DAP-2020\u5806\u6808\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2021-67522\uff09"
}

CVE-2021-34861 (GCVE-0-2021-34861)

Vulnerability from cvelistv5

Published

2021-10-25 17:10

Modified

2024-08-04 00:26

Severity ?

8.8 (High) - CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-121 - Stack-based Buffer Overflow

Summary

This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of D-Link DAP-2020 1.01rc001 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the webproc endpoint, which listens on TCP port 80 by default. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-12104.

References

▼	URL	Tags
	https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201	x_refsource_MISC
	https://www.zerodayinitiative.com/advisories/ZDI-21-977/	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	D-Link	DAP-2020	Version: 1.01rc001

Show details on NVD website

JSON

To clipboard

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        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:26:54.669Z",
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            ],
            "url": "https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10201"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-977/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "DAP-2020",
          "vendor": "D-Link",
          "versions": [
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              "version": "1.01rc001"
            }
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          "value": "chung96vn ft phieulang ft ChiTran"
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        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "ADJACENT_NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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          }
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      "problemTypes": [
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            }
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    "state": "PUBLISHED"
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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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