// For flags

CVE-2015-1356

Siemens SIMATIC STEP 7 (TIA Portal) V13 Privilege Escalation

Severity Score

9.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Siemens SIMATIC STEP 7 (TIA Portal) before 13 SP1 determines a user's privileges on the basis of project-file fields that lack integrity protection, which allows remote attackers to establish arbitrary authorization data via a modified file.

Siemens SIMATIC STEP 7 (TIA Portal) anterior a 13 SP1 determina los privilegios de un usuario basándose en campos de ficheros de proyectos que no tienen la protección de integridad, lo que permite a atacantes remotos establecer una autorización arbitraria a través de un fichero modificado.

The latest update for SIMATIC STEP 7 (TIA Portal) V13 fixes two vulnerabilities. Device user passwords in TIA portal project files are stored using a weak hashing algorithm. Attackers with read access to the project file could possibly reconstruct the passwords for device users. Privilege information for device users is stored unprotected in the TIA portal projects. Attackers with access to the project file could possibly read and modify the permissions for device users in the project file. If unsuspecting users are tricked to download the manipulated project files to the device, the user permissions become active.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Local
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2015-01-26 CVE Reserved
  • 2015-02-16 CVE Published
  • 2024-08-06 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-264: Permissions, Privileges, and Access Controls
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Siemens
Search vendor "Siemens"
 Simatic Step 7
Search vendor "Siemens" for product "Simatic Step 7"
 <= 13.0
Search vendor "Siemens" for product "Simatic Step 7" and version " <= 13.0"
-
Affected