// For flags

CVE-2015-1355

Siemens SIMATIC STEP 7 (TIA Portal) V13 Privilege Escalation

Severity Score

5.5
*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 uses a weak password-hash algorithm, which makes it easier for local users to determine cleartext passwords by reading a project file and conducting a brute-force attack.

Siemens SIMATIC STEP 7 (TIA Portal) anterior a 13 SP1 utiliza un algoritmo de hashes de contraseñas débil, lo que facilita a usuarios locales determinar las contraseñas en texto claro mediante la lectura de un ficheros de proyectos y la realización de un ataque de fuerza bruta.

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
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* 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-310: Cryptographic Issues
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