cnvd - cnvd-2020-33256

cnvd-2020-33256

Vulnerability from cnvd

Title: OPC Foundation UA .NET Standard代码问题漏洞

Description:

OPC Foundation UA.NET Standard是OPC基金会（OPC Foundation）的一套用于开发OPC UA应用程序的统一架构标准。

OPC Foundation UA.NET Standard中会话的处理过程存在安全漏洞，该漏洞源于在对对象执行操作时缺少适当的锁定操作。攻击者可利用该漏洞导致拒绝服务。

Severity: 中

Patch Name: OPC Foundation UA .NET Standard代码问题漏洞的补丁

Patch Description:

OPC Foundation UA.NET Standard是OPC基金会（OPC Foundation）的一套用于开发OPC UA应用程序的统一架构标准。

OPC Foundation UA.NET Standard中会话的处理过程存在安全漏洞，该漏洞源于在对对象执行操作时缺少适当的锁定操作。攻击者可利用该漏洞导致拒绝服务。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://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-8867.pdf

Reference: https://www.zerodayinitiative.com/advisories/ZDI-20-536/

Impacted products

Name
OPC Foundation UA.NET Standard

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8867"
    }
  },
  "description": "OPC Foundation UA.NET Standard\u662fOPC\u57fa\u91d1\u4f1a\uff08OPC Foundation\uff09\u7684\u4e00\u5957\u7528\u4e8e\u5f00\u53d1OPC UA\u5e94\u7528\u7a0b\u5e8f\u7684\u7edf\u4e00\u67b6\u6784\u6807\u51c6\u3002\n\nOPC Foundation UA.NET Standard\u4e2d\u4f1a\u8bdd\u7684\u5904\u7406\u8fc7\u7a0b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u5bf9\u5bf9\u8c61\u6267\u884c\u64cd\u4f5c\u65f6\u7f3a\u5c11\u9002\u5f53\u7684\u9501\u5b9a\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-8867.pdf",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-33256",
  "openTime": "2020-06-15",
  "patchDescription": "OPC Foundation UA.NET Standard\u662fOPC\u57fa\u91d1\u4f1a\uff08OPC Foundation\uff09\u7684\u4e00\u5957\u7528\u4e8e\u5f00\u53d1OPC UA\u5e94\u7528\u7a0b\u5e8f\u7684\u7edf\u4e00\u67b6\u6784\u6807\u51c6\u3002\r\n\r\nOPC Foundation UA.NET Standard\u4e2d\u4f1a\u8bdd\u7684\u5904\u7406\u8fc7\u7a0b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u5bf9\u5bf9\u8c61\u6267\u884c\u64cd\u4f5c\u65f6\u7f3a\u5c11\u9002\u5f53\u7684\u9501\u5b9a\u64cd\u4f5c\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\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": "OPC Foundation UA .NET Standard\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "OPC Foundation UA.NET Standard"
  },
  "referenceLink": "https://www.zerodayinitiative.com/advisories/ZDI-20-536/",
  "serverity": "\u4e2d",
  "submitTime": "2020-04-21",
  "title": "OPC Foundation UA .NET Standard\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-8867 (GCVE-0-2020-8867)

Vulnerability from cvelistv5

Published

2020-04-22 20:51

Modified

2024-08-04 10:12

Severity ?

5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition

Summary

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to create a denial-of-service condition against the application. Was ZDI-CAN-10295.

References

▼	URL	Tags
	https://www.zerodayinitiative.com/advisories/ZDI-20-536/	x_refsource_MISC
	https://opcfoundation.org/SecurityBulletins/OPC%20Foundation%20Security%20Bulletin%20CVE-2020-8867.pdf	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	OPC Foundation	UA .NET Standard	Version: 1.04.358.30

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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