Vulnerability-Lookup

CNVD-2018-26988

Vulnerability from cnvd - Published: 2018-12-29

Title

Microsoft Windows Hyper-V安全绕过漏洞

Description

Microsoft Windows 10等都是美国微软（Microsoft）公司发布的一系列操作系统。Windows Hyper-V是其中的一个虚拟化产品，支持在Windows中创建虚拟机。 Microsoft Windows Hyper-V中存在安全功能绕过漏洞，该漏洞源于Hyper-V BIOS加载程序无法提供高熵源。远程攻击者可通过重启来宾虚拟机利用该漏洞绕过安全限制，执行未授权的操作。

Severity

低

Patch Name

Microsoft Windows Hyper-V安全绕过漏洞的补丁

Patch Description

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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435

Reference

https://www.securityfocus.com/bid/105240 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8435

Impacted products

Name
Microsoft Windows Hyper-V

Show details on source website

JSON

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  "bids": {
    "bid": {
      "bidNumber": "105240"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8435"
    }
  },
  "description": "Microsoft Windows 10\u7b49\u90fd\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u53d1\u5e03\u7684\u4e00\u7cfb\u5217\u64cd\u4f5c\u7cfb\u7edf\u3002Windows Hyper-V\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u865a\u62df\u5316\u4ea7\u54c1\uff0c\u652f\u6301\u5728Windows\u4e2d\u521b\u5efa\u865a\u62df\u673a\u3002\n\nMicrosoft Windows Hyper-V\u4e2d\u5b58\u5728\u5b89\u5168\u529f\u80fd\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHyper-V BIOS\u52a0\u8f7d\u7a0b\u5e8f\u65e0\u6cd5\u63d0\u4f9b\u9ad8\u71b5\u6e90\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u91cd\u542f\u6765\u5bbe\u865a\u62df\u673a\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\u3002",
  "discovererName": "Niels Ferguson of Microsoft Corporation",
  "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://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8435",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-26988",
  "openTime": "2018-12-29",
  "patchDescription": "Microsoft Windows 10\u7b49\u90fd\u662f\u7f8e\u56fd\u5fae\u8f6f\uff08Microsoft\uff09\u516c\u53f8\u53d1\u5e03\u7684\u4e00\u7cfb\u5217\u64cd\u4f5c\u7cfb\u7edf\u3002Windows Hyper-V\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u865a\u62df\u5316\u4ea7\u54c1\uff0c\u652f\u6301\u5728Windows\u4e2d\u521b\u5efa\u865a\u62df\u673a\u3002\r\n\r\nMicrosoft Windows Hyper-V\u4e2d\u5b58\u5728\u5b89\u5168\u529f\u80fd\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eHyper-V BIOS\u52a0\u8f7d\u7a0b\u5e8f\u65e0\u6cd5\u63d0\u4f9b\u9ad8\u71b5\u6e90\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u91cd\u542f\u6765\u5bbe\u865a\u62df\u673a\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u5b89\u5168\u9650\u5236\uff0c\u6267\u884c\u672a\u6388\u6743\u7684\u64cd\u4f5c\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": "Microsoft Windows Hyper-V\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Microsoft Windows Hyper-V"
  },
  "referenceLink": "https://www.securityfocus.com/bid/105240\r\nhttps://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8435",
  "serverity": "\u4f4e",
  "submitTime": "2018-09-12",
  "title": "Microsoft Windows Hyper-V\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2018-8435 (GCVE-0-2018-8435)

Vulnerability from cvelistv5 – Published: 2018-09-13 00:00 – Updated: 2024-08-05 06:54

Summary

A security feature bypass vulnerability exists when Windows Hyper-V BIOS loader fails to provide a high-entropy source, aka "Windows Hyper-V Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows 10, Windows 10 Servers.

Severity

No CVSS data available.

CWE

Security Feature Bypass

Assigner

microsoft mitre root Scorecard

References

3 references

URL	Tags
http://www.securityfocus.com/bid/105240	vdb-entryx_refsource_BID
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1041624	vdb-entryx_refsource_SECTRACK

Impacted products

3 products

Vendor	Product	Version
Microsoft	Windows Server 2016	Affected: (Server Core installation)
Microsoft	Windows 10	Affected: Version 1607 for x64-based Systems Affected: Version 1703 for x64-based Systems Affected: Version 1709 for x64-based Systems Affected: Version 1803 for x64-based Systems Affected: x64-based Systems
Microsoft	Windows 10 Servers	Affected: version 1709 (Server Core Installation) Affected: version 1803 (Server Core Installation)

Date Public

2018-09-12 00:00

Show details on NVD website

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.
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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.

Action not permitted

CNVD-2018-26988

CVE-2018-8435 (GCVE-0-2018-8435)

Tags

Sightings

Nomenclature

Related by attack behaviour