CVE-2016-1000107
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 · uneditedinets in Erlang possibly 22.1 and earlier follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue.
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 confidenceThe inets web server in Erlang follows RFC 3875 section 4.1.18 and reads the Proxy HTTP header from incoming requests, setting it as the HTTP_PROXY environment variable. This allows remote attackers to inject a crafted Proxy header to redirect the application's outbound HTTP traffic through an attacker-controlled proxy server, enabling traffic interception or man-in-the-middle attacks.
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<= 22.1CVSS 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
- Changed
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/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 installed Erlang/OTP versionRun 'erl -eval 'erlang:display(erlang:system_info(otp_release)), halt()' -noshell' or check 'erl +V' outputAffected if Version is 22.1 or lower (Erlang/OTP <= 22.1)
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Confirm inets HTTP server is in useCheck if inets is started via 'inets:started()' or look for inets service configuration in your deploymentAffected if inets HTTP server is running and handling HTTP requests
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Identify if inets handles external HTTP requestsReview application configuration for inets httpd service definitions (typically in config files or via inets:start(httpd, ...) calls)Affected if inets httpd is configured to accept external HTTP connections
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Verify Proxy header could reach inetsCheck network exposure of inets HTTP listener - confirm it accepts requests from untrusted sourcesAffected if inets HTTP server is accessible to remote/untrusted clients
Your environment is affected if you run Erlang/OTP version 22.1 or lower AND use the inets HTTP server to handle external requests, because the Proxy header from incoming requests can set HTTP_PROXY and redirect your outbound HTTP traffic.
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 dataFilter or reject the Proxy header in incoming HTTP requests before processing, or configure inets/HTTP clients to ignore the HTTP_PROXY environment variable for production traffic.
- Consultation2.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $2,560.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2016-1000107 — 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-2016-1000107 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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