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CVE-2018-7791

Quick assessment

Affected
Schneider Electric SE Modicon M221, all references, all versions prior to firmware V1.6.2.0
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 M221是法国施耐德电气（Schneider Electric）公司的一款可编程逻辑控制器。 使用1.6.2.0之前版本固件的Schneider Electric Modicon M221中存在授权问题漏洞。远程攻击者可利用该漏洞覆盖原有的密码并可能从PLC中上传原始的程序。

AI Predicted 9.8 Difficulty: Trivial EPSS 1.90% · P78

Affected Version Matrix 1

VendorProduct Version RangeStatus
Schneider Electric SE Modicon M221, all references, all versions prior to firmware V1.6.2.0 Modicon M221, all references, all versions prior to firmware V1.6.2.0 affected
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I. Basic Information for CVE-2018-7791

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Permissions, Privileges, and Access Control vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to overwrite the original password with their password. If an attacker exploits this vulnerability and overwrite the password, the attacker can upload the original program from the PLC.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Schneider Electric Modicon M221 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Schneider Electric Modicon M221是法国施耐德电气（Schneider Electric）公司的一款可编程逻辑控制器。 使用1.6.2.0之前版本固件的Schneider Electric Modicon M221中存在授权问题漏洞。远程攻击者可利用该漏洞覆盖原有的密码并可能从PLC中上传原始的程序。
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
Schneider Electric SE Modicon M221, all references, all versions prior to firmware V1.6.2.0 Modicon M221, all references, all versions prior to firmware V1.6.2.0 -

II. Public POCs for CVE-2018-7791

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III. Intelligence Information for CVE-2018-7791

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Vendor Advisories for CVE-2018-7791 (1)

Other References for CVE-2018-7791 (1)

Same Patch Batch · Schneider Electric SE · 2018-08-29 · 5 CVEs total

CVE-2018-7789 Schneider Electric Modicon M221 代码问题漏洞
CVE-2018-7795 Schneider Electric PowerLogic PM5560 跨站脚本漏洞
CVE-2018-7790 Schneider Electric Modicon M221 安全漏洞
CVE-2018-7792 Schneider Electric Modicon M221 权限许可和访问控制问题漏洞

IV. Related Vulnerabilities

Same product: Modicon M221, all references, all versions prior to firmware V1.6.2.0
Same vendor: Schneider Electric SE

V. Comments for CVE-2018-7791

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