// For flags

CVE-2017-6030

 

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A Predictable Value Range from Previous Values issue was discovered in Schneider Electric Modicon PLCs Modicon M221, firmware versions prior to Version 1.5.0.0, Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The affected products generate insufficiently random TCP initial sequence numbers that may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections.

Un problema de Rango de Valor Predecible de Valores Anteriores fue detectado en PLCs Modicon M221, versiones de firmware anteriores a 1.5.0.0, Modicon M241, versiones de firmware anteriores a la 4.0.5.11, y Modicon M251, versiones de firmware anteriores a la 4.0.5.11 de Schneider Electric. Los productos afectados generan números de secuencia inicial TCP de aleatoriedad insuficientemente que pueden permitir a un atacante predecir los números de los valores anteriores. Esto puede permitir a un atacante suplantar o interrumpir las conexiones TCP.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-02-16 CVE Reserved
  • 2017-06-30 CVE Published
  • 2023-05-09 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-331: Insufficient Entropy
  • CWE-343: Predictable Value Range from Previous Values
CAPEC
References (2)
URL Tag Source
http://www.securityfocus.com/bid/97254 Third Party Advisory
https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
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 M241 Firmware
Search vendor "Schneider-electric" for product "Modicon M241 Firmware"
 <= 4.0.3.20
Search vendor "Schneider-electric" for product "Modicon M241 Firmware" and version " <= 4.0.3.20"
-
Affected
in Schneider-electric
Search vendor "Schneider-electric"
 Modicon M241
Search vendor "Schneider-electric" for product "Modicon M241"
--
Safe
Schneider-electric
Search vendor "Schneider-electric"
 Modicon M251 Firmware
Search vendor "Schneider-electric" for product "Modicon M251 Firmware"
 <= 4.0.3.20
Search vendor "Schneider-electric" for product "Modicon M251 Firmware" and version " <= 4.0.3.20"
-
Affected
in Schneider-electric
Search vendor "Schneider-electric"
 Modicon M251
Search vendor "Schneider-electric" for product "Modicon M251"
--
Safe
Schneider-electric
Search vendor "Schneider-electric"
 Modicon M221 Firmware
Search vendor "Schneider-electric" for product "Modicon M221 Firmware"
 <= 1.1.1.5
Search vendor "Schneider-electric" for product "Modicon M221 Firmware" and version " <= 1.1.1.5"
-
Affected
in Schneider-electric
Search vendor "Schneider-electric"
 Modicon M221
Search vendor "Schneider-electric" for product "Modicon M221"
--
Safe