CVE-2018-7793 Missing authorization in FoxView HMI SCADA (All Foxboro DCS, Foxboro Evo, and IA Series versions prior to Foxboro DCS Control Core Services 9.4 (CCS 9.4) and FoxView 10.5.)
Attackers can modify passwords without permission, leading to unauthorized disclosure, modification, or service disruption in FoxView HMI SCADA systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-7793?
CVE-2018-7793 is a high-severity missing authorization vulnerability in Schneider Electric SE FoxView HMI SCADA (All Foxboro DCS, Foxboro Evo, and IA Series versions prior to Foxboro DCS Control Core Services 9.4 (CCS 9.4) and FoxView 10.5.), published on 24 Dec 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A Credential Management vulnerability exists in FoxView HMI SCADA (All Foxboro DCS, Foxboro Evo, and IA Series versions prior to Foxboro DCS Control Core Services 9.4 (CCS 9.4) and FoxView 10.5.) which could cause unauthorized disclosure, modification, or disruption in service when the password is modified without permission.
Which versions are affected by CVE-2018-7793?
It affects 4 products.
Products include Schneider-Electric Foxboro Dcs, Schneider-Electric Foxboro Evo, Schneider-Electric Foxview, Schneider-Electric Ia Series.
How do I fix CVE-2018-7793?
No fix has been published for CVE-2018-7793 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2018-7793 being exploited?
There is no known exploitation of CVE-2018-7793 in the wild and no public exploit code.
Sources
Also known as GHSA-cw27-2923-6fch.