Vulnerability-Lookup

CNVD-2021-94840

Vulnerability from cnvd - Published: 2021-12-07

Title

多款D-Link产品空指针解引用漏洞（CNVD-2021-94840）

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，该漏洞源于当特定的网络包被发送到httpd二进制文件时，攻击者可利用漏洞导致程序崩溃。

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-2021-28838

Impacted products

Name
['D-Link DAP-2310 2,10RC039', 'D-Link DAP-2330 1.10RC036 BETA', 'D-Link DAP-2360 2.10RC055', 'D-Link DAP-2553 3.10rc039 BETA', 'D-Link DAP-2660 3.16 3.16', 'D-Link TARC15-15RC', 'D-Link DAP-2660 1.16bRC15rc']

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-28838",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-28838"
    }
  },
  "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\u7279\u5b9a\u7684\u7f51\u7edc\u5305\u88ab\u53d1\u9001\u5230httpd\u4e8c\u8fdb\u5236\u6587\u4ef6\u65f6\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u7a0b\u5e8f\u5d29\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-2021-94840",
  "openTime": "2021-12-07",
  "products": {
    "product": [
      "D-Link DAP-2310 2,10RC039",
      "D-Link DAP-2330 1.10RC036 BETA",
      "D-Link DAP-2360 2.10RC055",
      "D-Link DAP-2553 3.10rc039 BETA",
      "D-Link DAP-2660 3.16 3.16",
      "D-Link TARC15-15RC",
      "D-Link DAP-2660 1.16bRC15rc"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-28838",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-13",
  "title": "\u591a\u6b3eD-Link\u4ea7\u54c1\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\uff08CNVD-2021-94840\uff09"
}

CVE-2021-28838 (GCVE-0-2021-28838)

Vulnerability from cvelistv5 – Published: 2021-08-10 17:23 – Updated: 2024-08-03 21:55

Summary

Null pointer dereference vulnerability in D-Link DAP-2310 2,10RC039, DAP-2330 1.10RC036 BETA, DAP-2360 2.10RC055, DAP-2553 3.10rc039 BETA, DAP-2660 1.15rc131b, DAP-2690 3.20RC115 BETA, DAP-2695 1.20RC093, DAP-3320 1.05RC027 BETA and DAP-3662 1.05rc069 in the sbin/httpd binary. The crash happens at the `atoi' operation when a specific network package are sent to the httpd binary.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

3 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

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JSON

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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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.