CVE-2017-6028

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.

Score

CVSS 3.1 9.8 Critical

Status

Modified - ics-cert@hq.dhs.gov

Published

2017-06-30

Last modified

2024-08-05

Weaknesses

CWE-522

Affected products

• Modicon M241 Firmware (Schneider-electric)
• Modicon M251 Firmware (Schneider-electric)

References

• http://www.securityfocus.com/bid/97254
• https://ics-cert.us-cert.gov/advisories/ICSA-17-089-02