CVE-2018-1193
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 · uneditedCloud Foundry routing-release, versions prior to 0.175.0, lacks sanitization for user-provided X-Forwarded-Proto headers. A remote user can set the X-Forwarded-Proto header in a request to potentially bypass an application requirement to only respond over secure connections.
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 · high confidenceCloud Foundry routing-release prior to version 0.175.0 does not sanitize user-supplied X-Forwarded-Proto headers. An attacker can send a crafted request with an arbitrary X-Forwarded-Proto value (e.g., setting it to 'https') to trick downstream applications into believing the original request arrived over a secure connection, bypassing security controls that rely on this header to enforce HTTPS-only communication.
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 data< 1.27.0< 0.175.0CVSS 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
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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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Check routing-release versionRun 'bosh releases' and locate the routing-release entry, or inspect the runtime-manifest for the routing-release versionAffected if The routing-release version is below 0.175.0
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Check cf-deployment versionInspect your cf-deployment manifest file or run 'bosh manifest' for the deployment and locate the cf-deployment version tagAffected if The cf-deployment version is below 1.27.0
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Verify routing tier configuration for X-Forwarded-Proto handlingReview the routing-release manifest or configuration files for how the X-Forwarded-Proto header is processed. Look for settings that trust or pass through this header without validationAffected if The routing tier is configured to trust or forward the X-Forwarded-Proto header from clients without sanitization or restriction to trusted proxies
Your environment is affected if you are running routing-release below 0.175.0 or cf-deployment below 1.27.0, AND your routing configuration trusts the X-Forwarded-Proto header without sanitization.
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 data0.175.01.27.0
Upgrade routing-release to version 0.175.0 or later, which implements proper sanitization of the X-Forwarded-Proto header. Additionally, configure the routing tier to only accept X-Forwarded-Proto from trusted proxies and ensure applications do not solely trust this header for security-critical decisions.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-1193 — 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-2018-1193 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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