cnvd - cnvd-2021-94841

CNVD-2021-94841

Vulnerability from cnvd - Published: 2021-12-07

Title

多款D-Link产品空指针解引用漏洞（CNVD-2021-94841）

Description

D-Link DAP-2310是一款单频段无线网络接入点，适合需要快速可靠无线网络的小型企业或学校。D-Link DAP-2330是无线N300单频PoE接入点。多款D-Link产品存在空指针解引用漏洞，该漏洞源于当二进制处理特定的HTTP GET 请求时，upload_certificate函数中的strrchr将NULL作为第一个参数。攻击者可利用漏洞导致程序奔溃。

Severity

中

Formal description

目前厂商暂未发布修复措施解决此安全问题，建议使用此软件的用户随时关注厂商主页或参考网址以获取解决办法： https://www.dlink.com/en/security-bulletin

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-28839

Impacted products

Name
['D-Link DAP-2310 2.07.RC031', 'D-Link DAP-2330 1.07.RC028', 'D-Link DAP-2360 2.07.RC043', 'D-Link DAP-2553 3.06.RC027', 'D-Link DAP-2660 RAP-1.76.RC031', 'D-Link DAP-2660 RCAP-1.46.103.13']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-28839",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-28839"
    }
  },
  "description": "D-Link DAP-2310\u662f\u4e00\u6b3e\u5355\u9891\u6bb5\u65e0\u7ebf\u7f51\u7edc\u63a5\u5165\u70b9\uff0c\u9002\u5408\u9700\u8981\u5feb\u901f\u53ef\u9760\u65e0\u7ebf\u7f51\u7edc\u7684\u5c0f\u578b\u4f01\u4e1a\u6216\u5b66\u6821\u3002D-Link DAP-2330\u662f\u65e0\u7ebfN300\u5355\u9891PoE\u63a5\u5165\u70b9\u3002\n\n\u591a\u6b3eD-Link\u4ea7\u54c1\u5b58\u5728\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u4e8c\u8fdb\u5236\u5904\u7406\u7279\u5b9a\u7684HTTP GET \u8bf7\u6c42\u65f6\uff0cupload_certificate\u51fd\u6570\u4e2d\u7684strrchr\u5c06NULL\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u7a0b\u5e8f\u5954\u6e83\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u6682\u672a\u53d1\u5e03\u4fee\u590d\u63aa\u65bd\u89e3\u51b3\u6b64\u5b89\u5168\u95ee\u9898\uff0c\u5efa\u8bae\u4f7f\u7528\u6b64\u8f6f\u4ef6\u7684\u7528\u6237\u968f\u65f6\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u6216\u53c2\u8003\u7f51\u5740\u4ee5\u83b7\u53d6\u89e3\u51b3\u529e\u6cd5\uff1a\r\nhttps://www.dlink.com/en/security-bulletin",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94841",
  "openTime": "2021-12-07",
  "products": {
    "product": [
      "D-Link DAP-2310 2.07.RC031",
      "D-Link DAP-2330 1.07.RC028",
      "D-Link DAP-2360 2.07.RC043",
      "D-Link DAP-2553 3.06.RC027",
      "D-Link DAP-2660 RAP-1.76.RC031",
      "D-Link DAP-2660 RCAP-1.46.103.13"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-28839",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-13",
  "title": "\u591a\u6b3eD-Link\u4ea7\u54c1\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2021-94841\uff09"
}

CVE-2021-28839 (GCVE-0-2021-28839)

Vulnerability from cvelistv5 – Published: 2021-08-10 17:29 – Updated: 2024-08-03 21:55

Summary

Null Pointer Dereference vulnerability exists in D-Link DAP-2310 2.07.RC031, DAP-2330 1.07.RC028, DAP-2360 2.07.RC043, DAP-2553 3.06.RC027, DAP-2660 1.13.RC074, DAP-2690 3.16.RC100, DAP-2695 1.17.RC063, DAP-3320 1.01.RC014 and DAP-3662 1.01.RC022 in the upload_certificate function of sbin/httpd binary. When the binary handle the specific HTTP GET request, the strrchr in the upload_certificate function would take NULL as first argument, and incur the NULL pointer dereference vulnerability.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://www.dlink.com/en/security-bulletin/	x_refsource_MISC
	https://github.com/zyw-200/EQUAFL/blob/main/dlink…	x_refsource_MISC
	https://github.com/zyw-200/EQUAFL/blob/main/dlink…	x_refsource_MISC

Show details on NVD website

JSON

To clipboard

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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-2021-94841

CVE-2021-28839 (GCVE-0-2021-28839)

Tags

Sightings

Nomenclature