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CVE-2022-32136— Codesys runtime systems: Access of uninitialised pointer lead to denial of service.

Quick assessment

Affected
CODESYS Runtime Toolkit
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.

CODESYS是德国3S-Smart Software Solutions的一套控制器开发系统 CODESYS 多个产品存在安全漏洞，低权限远程攻击者利用该漏洞可能会制作一个请求，导致对未初始化指针的读取访问，从而导致拒绝服务。 不需要用户交互。

CVSS 6.5 · Medium EPSS 1.05% · P64

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2022-32136

Vulnerability Information
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Vulnerability Title
Codesys runtime systems: Access of uninitialised pointer lead to denial of service.
Source: CVE Program / CVE List V5
Vulnerability Description
In multiple CODESYS products, a low privileged remote attacker may craft a request that cause a read access to an uninitialized pointer, resulting in a denial-of-service. User interaction is not required.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用未经初始化的指针
Source: CVE Program / CVE List V5
Vulnerability Title
CODESYS 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CODESYS是德国3S-Smart Software Solutions的一套控制器开发系统 CODESYS 多个产品存在安全漏洞，低权限远程攻击者利用该漏洞可能会制作一个请求，导致对未初始化指针的读取访问，从而导致拒绝服务。 不需要用户交互。
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
CODESYS Runtime Toolkit V2 ~ V2.4.7.57 -
CODESYS PLCWinNT V2 ~ V2.4.7.57 -

II. Public POCs for CVE-2022-32136

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III. Intelligence Information for CVE-2022-32136

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Same Patch Batch · CODESYS · 2022-06-24 · 14 CVEs total

CVE-2022-31802 9.8 CRITICAL Partial string comparison in CODESYS gateway server
CVE-2022-31806 9.8 CRITICAL Insecure default settings in CODESYS Runtime Toolkit 32 bit full and CODESYS PLCWinNT
CVE-2022-32137 8.8 HIGH CODESYS Runtime System prone to heap based buffer overflow
CVE-2022-32138 8.8 HIGH CODESYS runtime system prone to denial of service due to Unexpected Sign Extension
CVE-2022-32143 8.8 HIGH CODESYS runtime system prone to directory acces
CVE-2022-1965 8.1 HIGH CODESYS runtime system prone to file deletion due to improper error handling
CVE-2022-32142 8.1 HIGH CODESYS runtime system prone to denial of service due to use of out of range pointer
CVE-2022-31804 7.5 HIGH CODESYS Gateway server prone to denial of service attack due to excessive memory allocatio
CVE-2022-31805 7.5 HIGH Insecure transmission of credentials
CVE-2022-32139 6.5 MEDIUM CODESYS runtime system prone to denial of service due to out of bounds read
CVE-2022-32140 6.5 MEDIUM CODESYS runtime system prone to denial of service due to buffer copy
CVE-2022-32141 6.5 MEDIUM CODESYS runtime system prone to denial of service due to buffer over read
CVE-2022-31803 5.3 MEDIUM CODESYS Gateway Server V2 prone to Denial of Service Attack

IV. Related Vulnerabilities

Same product: Runtime Toolkit
Same vendor: CODESYS
Same weakness: CWE-824