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CVE-2021-40142

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Local Discovery Server是提供了必要的基础设施来公开暴露给定计算机上可用的 OPC UA 服务器。 Local Discovery Server 1.04.402.463之前版本存在安全漏洞，远程攻击者可以通过发送精心制作的消息来导致拒绝服务，这些消息导致在缓冲区结束后访问内存位置。

CVSS 7.5 · High EPSS 2.56% · P85

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service
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I. Basic Information for CVE-2021-40142

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In OPC Foundation Local Discovery Server (LDS) before 1.04.402.463, remote attackers can cause a denial of service (DoS) by sending carefully crafted messages that lead to Access of a Memory Location After the End of a Buffer.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Local Discovery Server 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Local Discovery Server是提供了必要的基础设施来公开暴露给定计算机上可用的 OPC UA 服务器。 Local Discovery Server 1.04.402.463之前版本存在安全漏洞，远程攻击者可以通过发送精心制作的消息来导致拒绝服务，这些消息导致在缓冲区结束后访问内存位置。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-40142

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III. Intelligence Information for CVE-2021-40142

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Vendor Advisories for CVE-2021-40142 (1)

Other References for CVE-2021-40142 (1)

Same Patch Batch · n/a · 2021-08-27 · 17 CVEs total

CVE-2021-23434 5.6 MEDIUM Prototype Pollution
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CVE-2020-18106 WMS SQL注入漏洞
CVE-2021-28233 ok-file-formats 缓冲区错误漏洞
CVE-2020-19002 Mezzanine 跨站脚本漏洞
CVE-2020-19000 Simiki 跨站脚本漏洞
CVE-2020-19001 Github Simiki 命令注入漏洞
CVE-2020-18999 Blog_mini 跨站脚本漏洞
CVE-2020-18998 Blog_mini 跨站脚本漏洞
CVE-2021-3264 Cxuucms SQL注入漏洞
CVE-2021-36530 ngiflib 缓冲区错误漏洞
CVE-2021-36531 ngiflib 缓冲区错误漏洞
CVE-2021-35342 useradm 代码问题漏洞
CVE-2020-23226 Cacti 跨站脚本漏洞
CVE-2021-40153 squashfs-tools 路径遍历漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a