|CVSS SCORE||9.8, (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)|
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Advantech WebAccess Node. Authentication is not required to exploit this vulnerability.
The specific flaw exists within tv_enua.exe, which is accessed through the 0x2711 IOCTL in the webvrpcs process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of Administrator.
This vulnerability is being disclosed publicly without a patch in accordance with ZDI policies.
02/04/19 – ZDI sent the vulnerability reports to ICS-CERT
|CREDIT||Natnael Samson (@NattiSamson)