Advantech WISE-PaaS/RMM UpgradeMgmt Directory Traversal Remote Code Execution Vulnerability

November 1st, 2019
ZDI-19-958 ZDI-CAN-9101

CVE ID

CVE-2019-13551

CVSS Score

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

Affected Vendors

Advantech

Affected Products

WISE-PaaS/RMM

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Advantech WISE-PasS/RMM. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the UpgradeMgmt class. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM.

Additional Details

Advantech has issued an update to correct this vulnerability. More details can be found at:
https://www.us-cert.gov/ics/advisories/icsa-19-304-01

Disclosure Timeline

  • 2019-09-17 - Vulnerability reported to vendor
  • 2019-11-01 - Coordinated public release of advisory

Credit

rgod of 9sg

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