Siemens SIMATIC STEP 7 Local Privilege Escalation Vulnerability in TIA Portal (SSA-629512)

high Nessus Plugin ID 133216


An application installed on the remote host is affected by multiple vulnerabilities.


The version of Siemens SIMATIC STEP 7 (TIA Portal) installed on the remote Windows host is prior to version 15.1 update 7, version 16 update 6, or version 17 update 4. It is, therefore, affected by a local privilege escalation vulnerability in TIA portal. An authenticated local attacker can execute arbitrary code with SYSTEM privileges.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.


Update to TIA Portal V15.1 Update 7, or TIA Portal V16 Update 6, or TIA Portal V17 Update 4 or later.

See Also

Plugin Details

Severity: High

ID: 133216

File Name: scada_siemens_tia_step7_ssa-629512.nbin

Version: 1.193

Type: local

Agent: windows

Family: SCADA

Published: 1/24/2020

Updated: 4/15/2024

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2019-10934


Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:siemens:simatic_tiaportal, cpe:/a:siemens:simatic_step_7

Required KB Items: installed_sw/Siemens SIMATIC STEP 7 (TIA Portal)

Exploit Ease: No known exploits are available

Patch Publication Date: 1/16/2020

Vulnerability Publication Date: 1/16/2020

Reference Information

CVE: CVE-2019-10934

IAVB: 2020-B-0003