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CVE-2022-4098— Wiesemann & Theis: Multiple products prone to missing authentication through spoofing

Quick assessment

Affected
Wiesemann & Theis Com-Server ++
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.

Wiesemann & Theis Com-Server Family是德国Wiesemann & Theis公司的一系列串行设备服务器。 Wiesemann & Theis Com-Server Family 存在安全漏洞，该漏洞源于容易通过 IP 欺骗绕过身份验证，在与 Com-Server 的 WBM 的经过身份验证的会话期间，同一子网中未经身份验证的攻击者可以获得会话 ID，并通过 IP 欺骗通过制作修改后的 HTTP Get 请求来更改任意设置，这可能会导致完全接管设备。

CVSS 8.0 · High EPSS 0.35% · P27
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I. Basic Information for CVE-2022-4098

Vulnerability Information
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Vulnerability Title
Wiesemann & Theis: Multiple products prone to missing authentication through spoofing
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple Wiesemann&Theis products of the ComServer Series are prone to an authentication bypass through IP spoofing. After a user logged in to the WBM of the Com-Server an unauthenticated attacker in the same subnet can obtain the session ID and through IP spoofing change arbitrary settings by crafting modified HTTP Get requests. This may result in a complete takeover of the device.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
使用欺骗进行的认证绕过
Source: CVE Program / CVE List V5
Vulnerability Title
Wiesemann & Theis Com-Server Family 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wiesemann & Theis Com-Server Family是德国Wiesemann & Theis公司的一系列串行设备服务器。 Wiesemann & Theis Com-Server Family 存在安全漏洞，该漏洞源于容易通过 IP 欺骗绕过身份验证，在与 Com-Server 的 WBM 的经过身份验证的会话期间，同一子网中未经身份验证的攻击者可以获得会话 ID，并通过 IP 欺骗通过制作修改后的 HTTP Get 请求来更改任意设置，这可能会导致完全接管设备。
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
Wiesemann & Theis Com-Server ++ 0 ~ 1.55 -
Wiesemann & Theis Com-Server 20mA 0 ~ 1.55 -
Wiesemann & Theis Com-Server Highspeed 100BaseFX 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed 100BaseLX 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed 19" 1Port 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed 19" 4Port 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed Compact 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed Industry 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed Isolated 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed OEM 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed Office 1 Port 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed Office 4 Port 0 ~ 1.78 -
Wiesemann & Theis Com-Server Highspeed PoE 0 ~ 1.78 -
Wiesemann & Theis Com-Server LC 0 ~ 1.55 -
Wiesemann & Theis Com-Server PoE 3 x Isolated 0 ~ 1.55 -
Wiesemann & Theis Com-Server UL 0 ~ 1.55 -

II. Public POCs for CVE-2022-4098

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III. Intelligence Information for CVE-2022-4098

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Other References for CVE-2022-4098 (1)

IV. Related Vulnerabilities

Same vendor: Wiesemann & Theis
Same weakness: CWE-290

V. Comments for CVE-2022-4098

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