Siemens SIMATIC WinCC (TIA Portal) Code Upload Vulnerability (SSA-121293)

Medium Nessus Plugin ID 127057

Synopsis

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

Description

The version of Siemens SIMATIC WinCC (TIA Portal) installed on the remote Windows host is prior or equal to version 15.1 update 2. It is, therefore, affected by a code upload vulnerability. An authenticated attacker with network access to the WinCC DataMonitor application could exploit this vulnerability to upload and execute arbitrary ASPX code.

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

Solution

Contact the vendor to see if an update is available.

See Also

https://cert-portal.siemens.com/productcert/pdf/ssa-121293.pdf

https://www.us-cert.gov/ics/advisories/icsa-19-192-02

Plugin Details

Severity: Medium

ID: 127057

File Name: scada_siemens_tia_wincc_ssa-121293.nbin

Version: 1.20

Type: local

Family: SCADA

Published: 2019/07/26

Updated: 2020/02/11

Dependencies: 81577

Risk Information

Risk Factor: Medium

CVSS Score Source: CVE-2019-10935

CVSS v2.0

Base Score: 6.5

Temporal Score: 4.8

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.2

Temporal Score: 6.3

Vector: CVSS:3.0/AV:N/AC:L/PR:H/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:wincc, cpe:/a:siemens:simatic_tiaportal

Required KB Items: installed_sw/Siemens SIMATIC WinCC Totally Integrated Automation Portal

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/07/09

Vulnerability Publication Date: 2019/07/09

Reference Information

CVE: CVE-2019-10935

BID: 109127

ICSA: 19-192-02

IAVB: 2019-B-0065