Vulnerability · Published Feb 9, 2021 · Assigned by siemens
CVE-2020-15798
Critical 9.8
In plain English
A critical-severity missing authentication in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 5.3% (higher than 93% of all known vulnerabilities).
Official description
A vulnerability has been identified in SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions < V16 Update 3a), SIMATIC HMI KTP Mobile Panels (All versions < V16 Update 3a), SINAMICS GH150 (All versions), SINAMICS GL150 (with option X30) (All versions), SINAMICS GM150 (with option X30) (All versions), SINAMICS SH150 (All versions), SINAMICS SL150 (All versions), SINAMICS SM120 (All versions), SINAMICS SM150 (All versions), SINAMICS SM150i (All versions). Affected devices with enabled telnet service do not require authentication for this service. This could allow a remote attacker to gain full access to the device. (ZDI-CAN-12046)
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Siemens | SIMATIC HMI Comfort Panels (incl. SIPLUS variants) | All versions < V16 Update 3a |
| Siemens | SIMATIC HMI KTP Mobile Panels | All versions < V16 Update 3a |
| Siemens | SINAMICS GH150 | All versions |
| Siemens | SINAMICS GL150 (with option X30) | All versions |
| Siemens | SINAMICS GM150 (with option X30) | All versions |
| Siemens | SINAMICS SH150 | All versions |
| Siemens | SINAMICS SL150 | All versions |
| Siemens | SINAMICS SM120 | All versions |
| Siemens | SINAMICS SM150 | All versions |
| Siemens | SINAMICS SM150i | All versions |
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-520004.pdf x_refsource_MISC
- https://us-cert.cisa.gov/ics/advisories/icsa-21-033-02 x_refsource_MISC
- https://cert-portal.siemens.com/productcert/pdf/ssa-752103.pdf x_refsource_CONFIRM