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[0day-rubbish] LCDS Laquis SCADA Unauthenticated /uploade.html file write chained with CMDEXT*.DLL autoload (9.8)

Full Disclosure ()1 · 1 read
Part of a story covered by 3 sources0day Rubbish Research Team discloses three unauthenticated file-upload RCE flaws (CVSS 9.8) in PrizmDoc for Java, Ecava IntegraXor IGX, and LCDS Laquis SCADAMerged summary & timeline
AI summary · grok-4.7Summaries by Vani AI

Unauthenticated file upload in LCDS Laquis SCADA chains with DLL autoload for code execution, CVSS 9.8.

The 0day Rubbish Research Team disclosed a flaw in LCDS Laquis SCADA that chains an unauthenticated file write at /uploade.html with autoloading of CMDEXT*.DLL files. Successful use runs arbitrary native code in the SCADA web and HMI process, which also hosts the Modbus TCP listener. The issue is CWE-434, scored CVSS 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), and the default configuration has no password. The posting says a full technical analysis is included; it does not report confirmed in-the-wild exploitation.

Key facts
  • Unauthenticated file write is possible through /uploade.html.
  • Default installations have no password configured.
  • Uploaded CMDEXT DLLs are autoloaded for native code execution.
  • CVSS 9.8 and CWE-434; the process also serves Modbus TCP.
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From the original article

Posted by disclosure via Fulldisclosure on Sep 22 0day Rubbish Research Team is publicly disclosing a vulnerability in LCDS Laquis SCADA. Type: Unauthenticated /uploade. html file write chained with CMDEXT*.

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