Description
A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) V15 (All versions), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 5), SIMATIC STEP 7 (TIA Portal) V17 (All versions < V17 Update 2). An attacker could achieve privilege escalation on the web server of certain devices due to improper access control vulnerability in the engineering system software. The attacker needs to have direct access to the impacted web server.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | SIMATIC STEP 7 (TIA Portal) V15 | All versions | — |
| Siemens | SIMATIC STEP 7 (TIA Portal) V16 | All versions < V16 Update 5 | — |
| Siemens | SIMATIC STEP 7 (TIA Portal) V17 | All versions < V17 Update 2 | — |
Advisories 2
- ICSA-22-104-14 Siemens SIMATIC STEP 7 (TIA Portal) CISA ICS & IT advisories · May 6, 2025
- SSA-350757 SSA-350757: Improper Access Control Vulnerability in TIA Portal Affecting S7-1200 and S7-1500 CPUs Web Server (Incl. Related ET200 CPUs and SIPLUS variants) Siemens ProductCERT · Apr 12, 2022