Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2021-22792

Quick assessment

Affected
n/a Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)
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.

Schneider Electric Modicon M580 CPU是法国施耐德电气（Schneider Electric）公司的一款M580以太网可编程自动化控制器的处理器模块。 Schneider Electric Modicon M580 CPU 存在代码问题漏洞，该漏洞源于在 Modicon M580 CPU（部件号 BMEP 和 BMEH，所有版本）中存在一个空指针解除引用。攻击者可利用该漏洞导致 Modicon PLC 控制器/模拟器拒绝服。

AI Predicted 5.5 Difficulty: Easy EPSS 0.94% · P58

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU ( Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2021-22792

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A CWE-476: NULL Pointer Dereference vulnerability that could cause a Denial of Service on the Modicon PLC controller / simulator when updating the controller application with a specially crafted project file exists in Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions).
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Schneider Electric Modicon M580 CPU 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Schneider Electric Modicon M580 CPU是法国施耐德电气（Schneider Electric）公司的一款M580以太网可编程自动化控制器的处理器模块。 Schneider Electric Modicon M580 CPU 存在代码问题漏洞，该漏洞源于在 Modicon M580 CPU（部件号 BMEP* 和 BMEH*，所有版本）中存在一个空指针解除引用。攻击者可利用该漏洞导致 Modicon PLC 控制器/模拟器拒绝服。
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
- Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for -

II. Public POCs for CVE-2021-22792

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2021-22792

请登录查看更多情报信息。

Other References for CVE-2021-22792 (1)

Same Patch Batch · n/a · 2021-09-02 · 15 CVEs total

CVE-2020-18048 CraigMS 命令注入漏洞
CVE-2021-22525 Micro Focus NetIQ Access Manager 信息泄露漏洞
CVE-2021-22704 多款 Schneider Electric 产品路径遍历漏洞
CVE-2021-22793 Schneider Electric AccuSine PCS+和Schneider Electric AccuSine PCSn 信息泄露漏洞
CVE-2021-22791 多款 Schneider Electric 产品缓冲区错误漏洞
CVE-2021-22790 Schneider Electric Modicon M580 CPU 缓冲区错误漏洞
CVE-2021-22789 Schneider Electric Modicon M580 CPU 缓冲区错误漏洞
CVE-2021-22775 Schneider Electric GP-Pro EX 代码问题漏洞
CVE-2021-33938 libsolv 缓冲区错误漏洞
CVE-2021-33930 libsolv 缓冲区错误漏洞
CVE-2021-33929 libsolv 缓冲区错误漏洞
CVE-2021-33928 libsolv 缓冲区错误漏洞
CVE-2021-31796 Cyberark Software CyberArk Credential Provider 加密问题漏洞
CVE-2021-31798 Cyberark Software CyberArk Credential Provider 安全特征问题漏洞

IV. Related Vulnerabilities

Same product: Modicon M580 CPU (part numbers BMEP* and BMEH*, all versions), Modicon M340 CPU (part numbers BMXP34*, all versions), Modicon MC80 (part numbers BMKC80*, all versions), Modicon Momentum Ethernet CPU (part numbers 171CBU*, all versions), PLC Simulator for EcoStruxureª Control Expert, including all Unity Pro versions (former name of EcoStruxureª Control Expert, all versions), PLC Simulator for EcoStruxureª Process Expert including all HDCS versions (former name of EcoStruxureª Process Expert, all versions), Modicon Quantum CPU (part numbers 140CPU*, all versions), Modicon Premium CPU (part numbers TSXP5*, all versions)
Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2021-22792

No comments yet

Leave a comment