CVE Vulnerabilities

CVE-2021-42029

Published: Apr 12, 2022 | Modified: Aug 09, 2022
CVSS 3.x
7.8
HIGH
Source:
NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.2 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C
RedHat/V2
RedHat/V3
Ubuntu

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 Software

Name Vendor Start Version End Version
Simatic_step_7 Siemens 15 (including) 16 (excluding)
Simatic_step_7 Siemens 16 (including) 16 (including)
Simatic_step_7 Siemens 16-update1 (including) 16-update1 (including)
Simatic_step_7 Siemens 16-update2 (including) 16-update2 (including)
Simatic_step_7 Siemens 16-update3 (including) 16-update3 (including)
Simatic_step_7 Siemens 16-update4 (including) 16-update4 (including)
Simatic_step_7 Siemens 17 (including) 17 (including)
Simatic_step_7 Siemens 17-update1 (including) 17-update1 (including)

References