Vulnerability CVE-2017-6028


Published: 2017-06-29   Modified: 2017-06-30

Description:
An Insufficiently Protected Credentials issue was discovered in Schneider Electric Modicon PLCs Modicon M241, all firmware versions, and Modicon M251, all firmware versions. Log-in credentials are sent over the network with Base64 encoding leaving them susceptible to sniffing. Sniffed credentials could then be used to log into the web application.

Type:

CWE-522

(Insufficiently Protected Credentials)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
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

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