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CVE-2022-4098

Wiesemann & Theis: Multiple products prone to missing authentication through spoofing

HIGH
8
CVSS Score
Published: December 13, 2022 at 07:26 AM UTC
Updated: June 17, 2026 at 05:19 AM UTC
46 products affected across 2 vendorsCom Server Highspeed Oem FirmwareCom Server Highspeed Office 1PORT FirmwareCom Server Highspeed Isolated Firmware

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Severity
HIGH8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Com Server 20MA Firmware· Wut
95%
v < 1.55
Affected range stops below 1.55, so it looks safe — our inference, not a vendor statement
wut-com-server-20ma (same device)
Com Server ++ Firmware· Wut
95%
v < 1.55
Affected range stops below 1.55, so it looks safe — our inference, not a vendor statement
wut-com-server (same device)
Com Server Highspeed 100BASEFX Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-100basefx (same device)
Com Server Highspeed 100BASELX Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-100baselx (same device)
Com Server Highspeed 19 " 1PORT Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-19-1port (same device)
Com Server Highspeed 19 " 4PORT Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-19-4port (same device)
Com Server Highspeed Compact Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-compact (same device)
Com Server Highspeed Industry Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-industry (same device)
Com Server Highspeed Isolated Firmware· Wut
95%
v < 1.78
Affected range stops below 1.78, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-isolated (same device)
Com Server Highspeed Lc Firmware· Wut
95%
v < 1.55
Affected range stops below 1.55, so it looks safe — our inference, not a vendor statement
wut-com-server-highspeed-lc (same device)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Vendor Advisory
Source: [email protected]
https://cert.vde.com/en/advisories/VDE-2022-057/

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8HIGHCERTVDE
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-290

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