Vulnerability-Lookup

CNVD-2021-26408

Vulnerability from cnvd - Published: 2021-04-08

Title

Nextcloud Server不安全直接对象引用漏洞

Description

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Server 18.0.2版本中存在不安全直接对象引用漏洞。该漏洞源于程序未对远程端点擦除进行所有权检查。攻击者可通过向端点发送恶意请求利用该漏洞消除其他用户的设备。

Severity

中

Patch Name

Nextcloud Server不安全直接对象引用漏洞的补丁

Patch Description

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Server 18.0.2版本中存在不安全直接对象引用漏洞。该漏洞源于程序未对远程端点擦除进行所有权检查。攻击者可通过向端点发送恶意请求利用该漏洞消除其他用户的设备。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://nextcloud.com/security/advisory/?id=NC-SA-2020-018

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-8156

Impacted products

Name
Nextcloud Nextcloud Server 18.0.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8154"
    }
  },
  "description": "Nextcloud\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u5957\u5f00\u6e90\u7684\u81ea\u6258\u7ba1\u6587\u4ef6\u540c\u6b65\u548c\u5171\u4eab\u7684\u901a\u4fe1\u5e94\u7528\u5e73\u53f0\u3002\n\nNextcloud Server 18.0.2\u7248\u672c\u4e2d\u5b58\u5728\u4e0d\u5b89\u5168\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9\u8fdc\u7a0b\u7aef\u70b9\u64e6\u9664\u8fdb\u884c\u6240\u6709\u6743\u68c0\u67e5\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u7aef\u70b9\u53d1\u9001\u6076\u610f\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u6d88\u9664\u5176\u4ed6\u7528\u6237\u7684\u8bbe\u5907\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://nextcloud.com/security/advisory/?id=NC-SA-2020-018",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-26408",
  "openTime": "2021-04-08",
  "patchDescription": "Nextcloud\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u5957\u5f00\u6e90\u7684\u81ea\u6258\u7ba1\u6587\u4ef6\u540c\u6b65\u548c\u5171\u4eab\u7684\u901a\u4fe1\u5e94\u7528\u5e73\u53f0\u3002\r\n\r\nNextcloud Server 18.0.2\u7248\u672c\u4e2d\u5b58\u5728\u4e0d\u5b89\u5168\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u5bf9\u8fdc\u7a0b\u7aef\u70b9\u64e6\u9664\u8fdb\u884c\u6240\u6709\u6743\u68c0\u67e5\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411\u7aef\u70b9\u53d1\u9001\u6076\u610f\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u6d88\u9664\u5176\u4ed6\u7528\u6237\u7684\u8bbe\u5907\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": "Nextcloud Server\u4e0d\u5b89\u5168\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Nextcloud Nextcloud Server 18.0.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-8156",
  "serverity": "\u4e2d",
  "submitTime": "2020-05-14",
  "title": "Nextcloud Server\u4e0d\u5b89\u5168\u76f4\u63a5\u5bf9\u8c61\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2020-8154 (GCVE-0-2020-8154)

Vulnerability from cvelistv5 – Published: 2020-05-12 13:01 – Updated: 2024-08-04 09:48

Summary

An Insecure direct object reference vulnerability in Nextcloud Server 18.0.2 allowed an attacker to remote wipe devices of other users when sending a malicious request directly to the endpoint.

Severity

No CVSS data available.

CWE

CWE-639 - Insecure Direct Object Reference (IDOR) (CWE-639)

Assigner

hackerone mitre root Scorecard

References

7 references

URL	Tags
https://hackerone.com/reports/819807	x_refsource_MISC
https://nextcloud.com/security/advisory/?id=NC-SA…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA

Impacted products

1 product

Vendor	Product	Version
n/a	Nextcloud Server	Affected: 18.0.3

Show details on NVD website

JSON

To clipboard

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            "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-018"
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          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/KC6HLX5SG4PZO6Y54D2LFJ4ATG76BKOP/"
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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.

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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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.

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CNVD-2021-26408

CVE-2020-8154 (GCVE-0-2020-8154)

Tags

Sightings

Nomenclature

Related by attack behaviour