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CVE-2024-43099— AutomationDirect DirectLogic H2-DM1E Authentication Bypass by Capture-replay

Quick assessment

Affected
AutomationDirect DirectLogic H2-DM1E
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.

AutomationDirect DirectLogic H2-DM1E是AutomationDirect公司的一款可编程逻辑控制器。 AutomationDirect DirectLogic H2-DM1E 2.8.0版本及之前版本存在安全漏洞，该漏洞源于存在会话劫持攻击，如果攻击者捕获会话密钥，他们就可以将流量注入正在进行的认证会话中。

CVSS 8.8 · High EPSS 0.28% · P19
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I. Basic Information for CVE-2024-43099

Vulnerability Information
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Vulnerability Title
AutomationDirect DirectLogic H2-DM1E Authentication Bypass by Capture-replay
Source: CVE Program / CVE List V5
Vulnerability Description
The session hijacking attack targets the application layer's control mechanism, which manages authenticated sessions between a host PC and a PLC. During such sessions, a session key is utilized to maintain security. However, if an attacker captures this session key, they can inject traffic into an ongoing authenticated session. To successfully achieve this, the attacker also needs to spoof both the IP address and MAC address of the originating host which is typical of a session-based attack.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用捕获-重放进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
AutomationDirect DirectLogic H2-DM1E 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
AutomationDirect DirectLogic H2-DM1E是AutomationDirect公司的一款可编程逻辑控制器。 AutomationDirect DirectLogic H2-DM1E 2.8.0版本及之前版本存在安全漏洞，该漏洞源于存在会话劫持攻击，如果攻击者捕获会话密钥，他们就可以将流量注入正在进行的认证会话中。
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
AutomationDirect DirectLogic H2-DM1E 0 ~ 2.8.0 -

II. Public POCs for CVE-2024-43099

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III. Intelligence Information for CVE-2024-43099

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Vendor Advisories for CVE-2024-43099 (1)

IV. Related Vulnerabilities

Same product: DirectLogic H2-DM1E
Same vendor: AutomationDirect
Same weakness: CWE-294

V. Comments for CVE-2024-43099

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