A vulnerability exists in the IEC 61850 communication stack that affects multiple Hitachi Energy products.  An attacker could exploit the vulnerability by using a specially crafted message sequence, to force the IEC 61850 MMS-server communication stack, to stop accepting new MMS-client connections.  Already existing/established client-server connections are not affected. List of affected CPEs: * cpe:2.3:o:hitachienergy:fox61x_tego1:r15b08:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r2a16_3:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r2a16:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1e01:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1d02:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1c07:*:*:*:*:*:*:* * cpe:2.3:o:hitachienergy:fox61x_tego1:r1b02:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:gms600:1.3.0:*:*:*:*:*:*:* * cpe:2.3:a:hitachienergy:itt600_sa_explorer:1.1.*:*:*:*:*:*:*:* * cpe:2.3:a:hitachien…

This vulnerability allows local attackers to escalate privileges on vulnerable installations of ABB MicroSCADA 9.3 with FP 1-2-3. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the configuration of the access controls for the installed product files. The installation procedure leaves critical files open to manipulation by any authenticated user. An attacker can leverage this vulnerability to escalate privileges to SYSTEM. Was ZDI-CAN-5097.