Hirschmann HiOS HiSecOS Authentication Bypass via HTTP Management

MITRE NVD CVE.ORG Print: PDF PDF

Summary

CVECVE-2018-25236
StatePUBLISHED
AssignerVulnCheck
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-03 23:17:00 UTC
Updated2026-04-03 23:17:00 UTC
DescriptionHirschmann HiOS and HiSecOS products RSP, RSPE, RSPS, RSPL, MSP, EES, EESX, GRS, OS, RED, EAGLE contain an authentication bypass vulnerability in the HTTP(S) management module that allows unauthenticated remote attackers to gain administrative access by crafting specially formed HTTP requests. Attackers can exploit improper authentication handling to obtain the authentication status and privileges of a previously authenticated user without providing valid credentials.

Risk And Classification

Primary CVSS: v4.0 9.3 CRITICAL from [email protected]

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-287 | CWE-287 Improper Authentication (CWE-287)

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/C...
4.0CNACVSS9.3CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
3.1[email protected]Primary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNACVSS9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v4.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Confidentiality
High
Integrity
High
Availability
High
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Belden Hirschmann HiOS affected 05.07 custom Not specified
CNA Belden Hirschmann HiOS affected 06.1.04 custom Not specified
CNA Belden Hirschmann HiOS affected 06.2.00 custom Not specified
CNA Belden Hirschmann HiOS unaffected 06.1.05 custom Not specified
CNA Belden Hirschmann HiOS unaffected 07.0.00 semver Not specified
CNA Belden Hirschmann HiOS unaffected 03.1.00 semver Not specified
CNA Belden Hirschmann HiSecOS EAGLE affected 03.00.02 semver Not specified
CNA Belden Hirschmann HiSecOS EAGLE unaffected 03.0.03 semver Not specified

References

ReferenceSourceLinkTags
assets.belden.com/m/52ecadbb5f1b0e04/original/Security-Bulletin-Web-Server-Auth... [email protected] assets.belden.com
www.vulncheck.com/advisories/hirschmann-hios-hisecos-authentication-bypass-via-... [email protected] www.vulncheck.com
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