CVE-2020-1611
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 Local File Inclusion vulnerability in Juniper Networks Junos Space allows an attacker to view all files on the target when the device receives malicious HTTP packets. This issue affects: Juniper Networks Junos Space versions prior to 19.4R1.
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 confidenceA Local File Inclusion (LFI) vulnerability in Juniper Networks Junos Space web interface allows remote attackers to traverse directories and read arbitrary files on the filesystem via specially crafted HTTP requests. This occurs due to insufficient input validation in the HTTP handling component.
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= 17.1= 17.2= 18.1= 18.2= 18.3= 18.4= 19.1= 19.2= 19.3CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/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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Identify Junos Space versionAccess the Junos Space web management interface and navigate to the About or System Information page to view the installed version. Alternatively, log into the Junos Space CLI and run 'show version' to confirm the exact version number.Affected if The installed version matches any of the following: 17.1, 17.2, 18.1, 18.2, 18.3, 18.4, 19.1, 19.2, or 19.3
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Confirm HTTP web interface is accessibleVerify that the Junos Space web interface (typically on port 443 or 8443) is reachable from network locations. Check firewall rules and confirm the service is listening.Affected if The Junos Space web management interface is exposed and reachable over HTTP/HTTPS from untrusted networks
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Inspect HTTP request handlingReview the Junos Space configuration for HTTP/HTTPS handling components. Examine how the web server processes incoming requests and validates input parameters.Affected if Input validation for HTTP request parameters is not properly configured or is disabled
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Review access and audit logs for LFI patternsExamine Junos Space logs for suspicious directory traversal patterns in HTTP requests, such as '../', '..\', or requests accessing system files like /etc/passwd. Logs are typically found in /var/log/ or through the web interface logs.Affected if Logs contain HTTP requests with directory traversal sequences or unauthorized file access attempts targeting system files
You are affected if your Junos Space version is 17.1 through 19.3 and the web management interface is accessible, as this version range contains the vulnerable HTTP handling component with insufficient input validation.
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 dataUpgrade Junos Space to version 19.4R1 or later to remediate this vulnerability. If immediate upgrading is not feasible, restrict network access to the Junos Space management interface using firewall rules or ACLs, and consider deploying a WAF to detect and block LFI attack patterns.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2020-1611 — 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-2020-1611 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
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- Version or environment caveats, and links to real fixes
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