Vulnerability-Lookup

CNVD-2021-34116

Vulnerability from cnvd - Published: 2021-05-12

Title

Alibaba Nacos访问控制错误漏洞

Description

nacos是中国阿里巴巴（Alibaba）的一个动态服务发现、配置和服务管理平台。该软件支持基于DNS和基于RPC的服务发现，可提供提供实时健康检查，阻止服务向不健康的主机或服务实例发送请求等功能。在版本1.4.1之前的Nacos中，ConfigOpsController允许用户执行管理操作，例如查询数据库，甚至清除数据库。虽然/data/remove端点使用@Secured注解得到了正确的保护，但是/derby端点未受保护，未经身份验证的攻击者可利用该漏洞公开访问。

Severity

中

Patch Name

Alibaba Nacos访问控制错误漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载https://github.com/advisories/GHSA-36hp-jr8h-556f

Reference

https://github.com/alibaba/nacos/issues/4463

Impacted products

Name
Alibaba Nacos <1.4.1

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-29442",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-29442"
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  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7dhttps://github.com/advisories/GHSA-36hp-jr8h-556f",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-34116",
  "openTime": "2021-05-12",
  "patchDescription": "nacos\u662f\u4e2d\u56fd\u963f\u91cc\u5df4\u5df4\uff08Alibaba\uff09\u7684\u4e00\u4e2a\u52a8\u6001\u670d\u52a1\u53d1\u73b0\u3001\u914d\u7f6e\u548c\u670d\u52a1\u7ba1\u7406\u5e73\u53f0\u3002\u8be5\u8f6f\u4ef6\u652f\u6301\u57fa\u4e8eDNS\u548c\u57fa\u4e8eRPC\u7684\u670d\u52a1\u53d1\u73b0\uff0c\u53ef\u63d0\u4f9b\u63d0\u4f9b\u5b9e\u65f6\u5065\u5eb7\u68c0\u67e5\uff0c\u963b\u6b62\u670d\u52a1\u5411\u4e0d\u5065\u5eb7\u7684\u4e3b\u673a\u6216\u670d\u52a1\u5b9e\u4f8b\u53d1\u9001\u8bf7\u6c42\u7b49\u529f\u80fd\u3002\r\n\r\n\u5728\u7248\u672c1.4.1\u4e4b\u524d\u7684Nacos\u4e2d\uff0cConfigOpsController\u5141\u8bb8\u7528\u6237\u6267\u884c\u7ba1\u7406\u64cd\u4f5c\uff0c\u4f8b\u5982\u67e5\u8be2\u6570\u636e\u5e93\uff0c\u751a\u81f3\u6e05\u9664\u6570\u636e\u5e93\u3002\u867d\u7136/data/remove\u7aef\u70b9\u4f7f\u7528@Secured\u6ce8\u89e3\u5f97\u5230\u4e86\u6b63\u786e\u7684\u4fdd\u62a4\uff0c\u4f46\u662f/derby\u7aef\u70b9\u672a\u53d7\u4fdd\u62a4\uff0c\u672a\u7ecf\u8eab\u4efd\u9a8c\u8bc1\u7684\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u516c\u5f00\u8bbf\u95ee\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": "Alibaba Nacos\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
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  },
  "referenceLink": "https://github.com/alibaba/nacos/issues/4463",
  "serverity": "\u4e2d",
  "submitTime": "2021-04-28",
  "title": "Alibaba Nacos\u8bbf\u95ee\u63a7\u5236\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-29442 (GCVE-0-2021-29442)

Vulnerability from cvelistv5 – Published: 2021-04-27 20:20 – Updated: 2024-08-03 22:02

Title

Authentication bypass

Summary

Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users. These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql)

Severity

8.6 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/alibaba/nacos/issues/4463	x_refsource_MISC
https://github.com/advisories/GHSA-36hp-jr8h-556f	x_refsource_CONFIRM
https://github.com/alibaba/nacos/pull/4517	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
alibaba	nacos	Affected: < 1.4.1

Show details on NVD website

JSON

To clipboard

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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.