CVE-2018-5465
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA Session Fixation issue was discovered in Belden Hirschmann RS, RSR, RSB, MACH100, MACH1000, MACH4000, MS, and OCTOPUS Classic Platform Switches. A session fixation vulnerability in the web interface has been identified, which may allow an attacker to hijack web sessions.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceA session fixation vulnerability exists in the web interface of Belden Hirschmann network switches (RS, RSR, RSB, MACH100, MACH1000, MACH4000, MS, and OCTOPUS Classic). An attacker can set or force a known session ID before user authentication, allowing them to hijack valid web sessions after the user logs in.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE dataall versionsall versionsall versionsall versionsall versionsall versionsall versionsall versionsCVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify device model is in affected product listAccess the device CLI or web interface and retrieve the exact model name (e.g., RS20 0900mmm2tdau, RSR, RSB, MACH100, MACH1000, MACH4000, MS, OCTOPUS Classic). Compare against the CVE-affected models.Affected if The device model matches one of the listed affected products (RS20 variants, RSR, RSB, MACH100, MACH1000, MACH4000, MS, or OCTOPUS Classic).
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Confirm web interface is enabledCheck the device configuration via CLI (show running-config | include http) or through the web interface itself to verify HTTP/HTTPS web management is active.Affected if The web interface (HTTP or HTTPS) is enabled and accessible, as this is the attack surface for session fixation.
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Inspect session cookie behavior before loginUsing a browser or HTTP tool, access the login page and capture any session cookies or identifiers set by the server before authentication. Note whether the server assigns a session ID that persists through the login process.Affected if A session ID is assigned and remains unchanged after successful authentication, allowing an attacker to pre-set a known session ID.
The environment is affected if a Belden Hirschmann switch from the affected product line has its web interface enabled, as the session fixation flaw allows attackers to hijack authenticated sessions.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply vendor firmware updates when available; in the interim, monitor for unauthorized session use and consider enforcing session timeout or using out-of-band management access.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-5465 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2018-5465 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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