// For flags

CVE-2018-7790

 

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

An Information Management Error vulnerability exists in Schneider Electric's Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to replay authentication sequences. If an attacker exploits this vulnerability and connects to a Modicon M221, the attacker can upload the original program from the PLC.

Existe una vulnerabilidad de error de gestión de información en el producto Modicon M221, de Schneider Electric (todas las referencias y todas las versiones anteriores al firmware V1.6.2.0). La vulnerabilidad permite que usuarios no autorizados reproduzcan secuencias de autenticación. Si un atacante explota la vulnerabilidad y se conecta a Modicon M221, el atacante puede subir el programa original desde el PLC.

*Credits: N/A
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
  • 2018-03-08 CVE Reserved
  • 2018-08-29 CVE Published
  • 2024-01-20 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-294: Authentication Bypass by Capture-replay
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"
 Modicon M221 Firmware
Search vendor "Schneider-electric" for product "Modicon M221 Firmware"
 < 1.6.2.0
Search vendor "Schneider-electric" for product "Modicon M221 Firmware" and version " < 1.6.2.0"
-
Affected
in Schneider-electric
Search vendor "Schneider-electric"
 Modicon M221
Search vendor "Schneider-electric" for product "Modicon M221"
--
Safe