CVE-2017-6028: schneider-electric modicon_m241_firmware Insufficiently Protected Credentials
Vulnerability summary
CVE-2017-6028 is a critical (CVSS 9.8) Insufficiently Protected Credentials vulnerability in schneider-electric modicon_m241_firmware. EPSS estimates a 2.25% chance of exploitation in the next 30 days, higher than 82.6% of scored vulnerabilities.
Timeline
- 30-06-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
2.25%
Chance of exploitation in the next 30 days
Percentile
83%
Versus all other CVEs
30-day change
0.00 pp
From 2.25% on 20-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Schneider-electric2 products
- modicon_m241_firmware≤ 4.0.3.20
- modicon_m251_firmware≤ 4.0.3.20
1 vendor · 2 products
References
2 links- ics-cert.us-cert.gov/advisories/ICSA-17-089-02X Refsource MISCThird Party AdvisoryUS Government Resource