Directory traversal vulnerability in the NC854 and NC856 modules for IDS RTU 850C devices allows remote authenticated users to read arbitrary files via unspecified vectors involving an internal web server, as demonstrated by reading a TELNET credentials file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2015-3939
• https://ics-cert.us-cert.gov/advisories/ICSA-15-148-01
• http://www.securityfocus.com/bid/74900