// For flags

CVE-2021-22802

Schneider Electric IGSS Heap-based Buffer Overflow Remote Code Execution Vulnerability

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in remote code execution due to missing length check on user supplied data, when a constructed message is received on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21243 and prior)

Una CWE-120: Se presenta una vulnerabilidad de Copia del búfer sin Comprobar el Tamaño de la Entrada que podría resultar en una ejecución de código remota debido a una falta de comprobación de la longitud de los datos suministrados por el usuario, cuando es recibido un mensaje construido en la red. Producto afectado: Interactive Graphical SCADA System Data Collector (dc.exe) (versiones V15.0.0.21243 y anteriores)

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Schneider Electric IGSS. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the processing of TCP traffic by the dc.exe process. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the user running IGSS.

*Credits: Vyacheslav Moskvin
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
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
  • 2021-01-06 CVE Reserved
  • 2021-10-14 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-10-27 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
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 Data Collector
Search vendor "Schneider-electric" for product "Interactive Graphical Scada System Data Collector"
 <= 15.0.0.21243
Search vendor "Schneider-electric" for product "Interactive Graphical Scada System Data Collector" and version " <= 15.0.0.21243"
-
Affected