QID 591128

Date Published: 2022-10-20

QID 591128: Siemens SIMATIC STEP 7 TIA Portal Improper Access Control Vulnerability (SSA-350757)

SIMATIC STEP 7 (TIA Portal) is an engineering software to configure and program SIMATIC controllers and Standard PCs running WinAC RTX.

AFFECTED PRODUCTS
The following Siemens products are affected:
SIMATIC STEP 7 (TIA Portal) V15: All versions
SIMATIC STEP 7 (TIA Portal) V16:All versions prior to V16 Update 5
SIMATIC STEP 7 (TIA Portal) V17: All versions prior to V17 Update 2

QID Detection Logic (Authenticated):
QID checks for the Vulnerable version of Siemens using registry "HKLM\SOFTWARE\Siemens.

A local user who is tricked into exploiting these vulnerabilities could possibly escalate privileges for an attacker.

CVSS V3 rated as High - 7.8 severity.

CVSS V2 rated as High - 7.2 severity.

Solution

Customers are advised to refer to CERT MITIGATIONS section SSA-350757 for affected packages and patching details.

Vendor References

SSA-350757 - cert-portal.siemens.com/productcert/pdf/ssa-350757.pdf

CVEs related to QID 591128

CVE-2021-42029 |

Software Advisories

Advisory ID	Software	Component	Link
SSA-350757			cert-portal.siemens.com/productcert/pdf/ssa-350757.pdf

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