ScadaLTS 2.8.1-release-candidate build 0 is affected by an Authorization Bypass



Spring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-methodName. The crossDomainSessionSecurity setting in web.xml is set to false, which disables DWR's built-in origin validation. This means any authenticated user can invoke any DWR method (regardless of the URL-based access control) by sending their request to a URL they are permitted to access (e.g. MiscDwr.initializeLongPoll.dwr) while targeting a restricted class in the POST body.



This is the systemic root cause that enables multiple other findings to be exploited as a low privilege user.

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History

Thu, 17 Sep 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-639
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 16 Sep 2026 15:00:00 +0000

Type Values Removed Values Added
Description ScadaLTS 2.8.1-release-candidate build 0 is affected by an Authorization Bypass Spring Security gates DWR endpoints by URL path pattern, but DWR itself dispatches method calls based on the POST body parameters c0-scriptName and c0-methodName. The crossDomainSessionSecurity setting in web.xml is set to false, which disables DWR's built-in origin validation. This means any authenticated user can invoke any DWR method (regardless of the URL-based access control) by sending their request to a URL they are permitted to access (e.g. MiscDwr.initializeLongPoll.dwr) while targeting a restricted class in the POST body. This is the systemic root cause that enables multiple other findings to be exploited as a low privilege user.
Title Scada-LTS DWR Authorization Bypass - Systemic
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: tenable

Published:

Updated: 2026-09-17T18:37:14.382Z

Reserved: 2026-09-02T13:26:23.692Z

Link: CVE-2026-84860

cve-icon Vulnrichment

Updated: 2026-09-17T18:37:03.855Z

cve-icon NVD

Status : Received

Published: 2026-09-16T15:18:00.760

Modified: 2026-09-17T19:17:05.393

Link: CVE-2026-84860

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses