PT-2015-3310 · Siemens · Simatic Step 7

Dmitry Sklyarov + 1 · Published 2015-01-15 · Updated 2016-12-22 · CVE-2016-7959

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Siemens SIMATIC STEP 7 (TIA Portal) versions prior to 14

Description The issue is related to the incorrect storage of pre-shared keys in TIA project files. This could allow a local attacker to gain access to sensitive information, potentially by conducting a brute-force attack after obtaining access to a file.

Recommendations For versions prior to 14, update to version 14 or later to resolve the issue. As a temporary workaround, consider restricting access to TIA project files to minimize the risk of exploitation.

Fix

Weakness Enumeration

CWE-254

Related Identifiers

BDU:2017-02201

CVE-2016-7959

Affected Products

Simatic Step 7

References · 9

• https://bdu.fstec.ru/vul/2017-02201 · Security Note
• https://osv.dev/vulnerability/CVE-2016-7959 · Vendor Advisory
• http://siemens.com/cert/pool/cert/siemens_security_advisory_ssa-869766.pdf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-7959 · Security Note
• http://securitylab.ru/lab/PT-2016-13 · Note
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-7959%20https://ics-cert.us-cert.gov/advisories/ICSA-16-287-03 · Note
• http://siemens.com/cert/pool/cert/siemens_security_advisory_ssa-869766.pdf%20http://securityfocus.com/bid/93551 · Note
• http://securityfocus.com/bid/93551 · Note
• https://ics-cert.us-cert.gov/advisories/ICSA-16-287-03 · Note