Vulnerability CVE-2017-6026
Published: 2017-06-29   Modified: 2017-06-30

Description:
A Use of Insufficiently Random Values issue was discovered in Schneider Electric Modicon PLCs Modicon M241, firmware versions prior to Version 4.0.5.11, and Modicon M251, firmware versions prior to Version 4.0.5.11. The session numbers generated by the web application are lacking randomization and are shared between several users. This may allow a current session to be compromised.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Schneider Electric PLC Authentication Bypass
Deneut Tijl
01.12.2018

Type:

CWE-330

 (Use of Insufficiently Random Values)

CVSS2 => (AV:N/AC:L/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.4/10
4.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Schneider-electric -> Modicon m251 firmware 
Schneider-electric -> Modicon m241 firmware 

 References:
http://www.securityfocus.com/bid/97254
https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02
https://www.exploit-db.com/exploits/45918/
Copyright 2024, cxsecurity.com

 

Back to Top