CVE-2019-10917 Denial of service in SIMATIC PCS 7 V8.0 and earlier
An attacker with local access to a project file can cause a Denial-of-Service condition in Siemens SIMATIC PCS 7 and WinCC products.
- 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-2019-10917?
CVE-2019-10917 is a medium-severity denial of service vulnerability in Siemens AG SIMATIC PCS 7 V8.0 and earlier, published on 14 May 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions < V8.1 with WinCC V7.3 Upd 19), SIMATIC PCS 7 V8.2 (All versions < V8.2 SP1 with WinCC V7.4 SP1 Upd11), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP2 with WinCC V7.4 SP1 Upd11), SIMATIC WinCC (TIA Portal) V13 (All versions), SIMATIC WinCC (TIA Portal) V14 (All versions < V14 SP1 Upd 9), SIMATIC WinCC (TIA Portal) V15 (All versions < V15.1 Upd 3), SIMATIC WinCC Runtime Professional V13 (All versions), SIMATIC WinCC Runtime Professional V14 (All versions < V14.1 Upd 8), SIMATIC WinCC Runtime Professional V15 (All versions < V15.1 Upd 3), SIMATIC WinCC V7.2 and earlier (All versions), SIMATIC WinCC V7.3 (All versions < V7.3 Upd 19), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Upd 11), SIMATIC WinCC V7.5 (All versions < V7.5 Upd 3). An attacker with local access to the project file could cause a Denial-of-Service condition on the affected product while the project file is loaded. Successful exploitation requires access to the project file. An attacker could use the vulnerability to compromise availability of the affected system. At the time of advisory publication no public exploitation of this security vulnerability was known.
Which versions are affected by CVE-2019-10917?
It affects 4 products.
Products include Siemens Simatic Pcs 7, Siemens Simatic Wincc, Siemens Simatic Wincc \(Tia Portal\), Siemens Simatic Wincc Runtime Professional.
How do I fix CVE-2019-10917?
No fix has been published for CVE-2019-10917 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2019-10917 being exploited?
There is no known exploitation of CVE-2019-10917 in the wild and no public exploit code.
Other vulnerabilities in Siemens AG SIMATIC PCS 7 V8.0 and earlier
Sources
Also known as GHSA-m4vw-c8vh-3c9g.