// For flags

CVE-2020-7479

Schneider Electric IGSS IGSSupdateservice Improper Access Control Privilege Escalation Vulnerability

Severity Score

7.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A CWE-306: Missing Authentication for Critical Function vulnerability exists in IGSS (Versions 14 and prior using the service: IGSSupdate), which could allow a local user to execute processes that otherwise require escalation privileges when sending local network commands to the IGSS Update Service.

Una CWE-306: Una vulnerabilidad de Falta de Autenticación para la Función Crítica en IGSS (Versiones 14 y anteriores usando el servicio: IGSSupdate), lo que podría permitir a un usuario local ejecutar procesos que de otro manera requerirían una escalada de privilegios cuando se envían comandos de red local al IGSS Update Service.

This vulnerability allows local attackers to escalate privileges on affected installations of Schneider Electric IGSS. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the IGSSupdateservice service, which listens on TCP port 12414 by default. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of SYSTEM.

*Credits: Anonymous
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2020-01-21 CVE Reserved
  • 2020-03-23 CVE Published
  • 2024-03-16 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-306: Missing Authentication for Critical Function
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Schneider-electric
Search vendor "Schneider-electric"
 Interactive Graphical Scada System
Search vendor "Schneider-electric" for product "Interactive Graphical Scada System"
 >= 14.0 < 14.0.0.20009
Search vendor "Schneider-electric" for product "Interactive Graphical Scada System" and version " >= 14.0 < 14.0.0.20009"
-
Affected