CVE-2021-42029
High
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.
SeverityHigh
CVSS7.8
Exploit probability—
ProductSiemens Simatic Step
PublishedApr 12, 2022
First seenApr 12, 2022
Weakness typeCWE-284Improper access control
How to fix
Update
- siemens simatic_step_716 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| siemens simatic_step_7 | 15 ≤ v < 16, 16, 17 | 16 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.