Vulnerability · Published Jun 10, 2020 · Assigned by siemens
CVE-2020-7586
High 7.8
In plain English
A high-severity heap buffer overflow in SIMATIC PCS 7 V8.2 and earlier from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC PCS 7 V8.2 and earlier | All versions |
| Siemens | SIMATIC PCS 7 V9.0 | All versions < V9.0 SP3 |
| Siemens | SIMATIC PDM | All versions < V9.2 |
| Siemens | SIMATIC STEP 7 V5.X | All versions < V5.6 SP2 HF3 |
| Siemens | SINAMICS STARTER (containing STEP 7 OEM version) | All versions < V5.4 HF2 |
Weakness: CWE-122
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-689942.pdf x_refsource_MISC
- https://www.us-cert.gov/ics/advisories/icsa-20-161-05 x_refsource_MISC
- https://us-cert.cisa.gov/ics/advisories/icsa-20-161-05 x_refsource_CONFIRM