Vulnerability-Lookup

CNVD-2021-94844

Vulnerability from cnvd - Published: 2021-12-07

Title

D-Link DIR-825空指针解引用漏洞

Description

D-Link DIR-825是中国台湾友讯（D-Link）公司的一款路由器。 D-Link DIR-825 2.10b02中存在安全漏洞，攻击者可利用漏洞导致相关设备拒绝服务。

Severity

中

Patch Name

D-Link DIR-825空指针解引用漏洞的补丁

Patch Description

D-Link DIR-825是中国台湾友讯（D-Link）公司的一款路由器。 D-Link DIR-825 2.10b02中存在安全漏洞，攻击者可利用漏洞导致相关设备拒绝服务。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10212

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-29296

Impacted products

Name
D-Link DIR-825 2.10b02

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-29296",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-29296"
    }
  },
  "description": "D-Link DIR-825\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u8def\u7531\u5668\u3002\n\nD-Link DIR-825 2.10b02\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u76f8\u5173\u8bbe\u5907\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-94844",
  "openTime": "2021-12-07",
  "patchDescription": "D-Link DIR-825\u662f\u4e2d\u56fd\u53f0\u6e7e\u53cb\u8baf\uff08D-Link\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u8def\u7531\u5668\u3002\r\n\r\nD-Link DIR-825 2.10b02\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u76f8\u5173\u8bbe\u5907\u62d2\u7edd\u670d\u52a1\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-825\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "D-Link DIR-825 2.10b02"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-29296",
  "serverity": "\u4e2d",
  "submitTime": "2021-08-12",
  "title": "D-Link DIR-825\u7a7a\u6307\u9488\u89e3\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2021-29296 (GCVE-0-2021-29296)

Vulnerability from cvelistv5 – Published: 2021-08-10 19:52 – Updated: 2024-08-03 22:02 Unsupported When Assigned

Summary

Null Pointer Dereference vulnerability in D-Link DIR-825 2.10b02, which could let a remote malicious user cause a denial of service. The vulnerability could be triggered by sending an HTTP request with URL /vct_wan; the sbin/httpd would invoke the strchr function and take NULL as a first argument, which finally leads to the segmentation fault. NOTE: The DIR-825 and all hardware revisions is considered End of Life and as such this issue will not be patched

Severity

No CVSS data available.

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-05-14 18:07 UTC

CWE

Assigner

mitre mitre root

References

2 references

URL	Tags
https://www.dlink.com/en/security-bulletin/	x_refsource_MISC
https://supportannouncement.us.dlink.com/announce…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
d-link	dir-825	Affected: 2.10b02 cpe:2.3:h:d-link:dir-825:2.10b02:::::::*

Show details on NVD website

JSON

To clipboard

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                "role": "CISA Coordinator",
                "timestamp": "2024-05-14T18:07:24.506794Z",
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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.

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