CVE intelligence and bounded remediation
CVE-2018-8859 — Echelon Smartserver 1 Firmware security vulnerability
Critical
CVSS 9.8
Echelon SmartServer 1 all versions, SmartServer 2 all versions prior to release 4.11.007, i.LON 100 all versions, and i.LON 600 all versions. An attacker can bypass the required authentication specified in the security configuration file by including extra characters in the directory name when specifying the directory to be accessed. This vulnerability does not affect the i.LON 600 product.
- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Published
- 2018-07-24
- CISA KEV
- Not currently listed
- Ecosystem
- operating-system
- Weaknesses
- CWE-288, CWE-287
Affected products
- echelon / smartserver_1_firmware
- echelon / smartserver_2_firmware
- echelon / i.lon_100_firmware
- echelon / i.lon_600_firmware
Matched remediation archetype
Authentication bypass and missing authentication
This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.
Check exposure
- Map every affected endpoint and protocol path, including alternate ports, legacy routes, recovery flows, service accounts, and machine-to-machine access.
- Confirm which deployments enable the affected authentication mode and whether the interface is reachable from untrusted networks.
- Review session, token, credential, and proxy trust configuration without attempting account takeover.
Remediate safely
- Apply the supported fix and centralize fail-closed authentication before protected request handling.
- Remove default or embedded credentials, rotate affected secrets and sessions, and bind authentication decisions to the intended audience and channel.
- Add negative tests for alternate routes, malformed or absent credentials, recovery flows, and proxy-derived identity.
Authoritative sources
Complete CVE record and remediation plan
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