CVE-2017-6028
First published: Fri Jun 30 2017(Updated: )
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.
Credit: ics-cert@hq.dhs.gov
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Schneider Electric Modicon M241 | <=4.0.3.20 | |
| Schneider Electric Modicon M241 | ||
| schneider-electric Modicon M251 firmware | <=4.0.3.20 | |
| schneider-electric Modicon M251 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-6028?
CVE-2017-6028 is classified as a high severity vulnerability due to its risk of credential exposure.
How do I fix CVE-2017-6028?
To fix CVE-2017-6028, implement secure communication methods such as encryption to protect login credentials.
What devices are affected by CVE-2017-6028?
CVE-2017-6028 affects Schneider Electric Modicon M241 and Modicon M251 PLCs across all firmware versions.
What types of credentials are at risk in CVE-2017-6028?
CVE-2017-6028 risks the exposure of login credentials that are transmitted using Base64 encoding.
Is it possible to mitigate CVE-2017-6028 without a firmware update?
Yes, you can mitigate CVE-2017-6028 by employing network security measures such as VPNs or firewalls.
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