CVE-2020-7586 Memory corruption in SIMATIC PCS 7 V8.2 and earlier
A local attacker can exploit a buffer overflow in Siemens industrial software to cause denial of service and access confidential information.
- 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-2020-7586?
CVE-2020-7586 is a high-severity memory corruption vulnerability in Siemens SIMATIC PCS 7 V8.2 and earlier, published on 10 Jun 2020. 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 V8.2 and earlier (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3), SIMATIC PDM (All versions < V9.2), SIMATIC STEP 7 V5.X (All versions < V5.6 SP2 HF3), SINAMICS STARTER (containing STEP 7 OEM version) (All versions < V5.4 HF2). A buffer overflow vulnerability could allow a local attacker to cause a Denial-of-Service situation. The security vulnerability could be exploited by an attacker with local access to the affected systems. Successful exploitation requires user privileges but no user interaction. The vulnerability could allow an attacker to compromise the availability of the system as well as to have access to confidential information.
Which versions are affected by CVE-2020-7586?
It affects 4 products.
Products include Siemens Simatic Pcs 7, Siemens Simatic Process Device Manager, Siemens Simatic Step 7, Siemens Sinamics Starter.
How do I fix CVE-2020-7586?
No fix has been published for CVE-2020-7586 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2020-7586 being exploited?
There is no known exploitation of CVE-2020-7586 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC PCS 7 V8.2 and earlier
Sources
Also known as GHSA-wggc-468x-3c9v.