Evolved Programmable Network ManagerApplication · Cisco
CVE-2019-1820
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 vulnerability in the web-based management interface of Cisco Prime Infrastructure and Cisco Evolved Programmable Network (EPN) Manager software could allow an authenticated, remote attacker to download and view files within the application that should be restricted. This vulnerability is due to improper sanitization of user-supplied input in HTTP request parameters that describe filenames. An attacker could exploit this vulnerability by using directory traversal techniques to submit a path to a desired file location. A successful exploit could allow the attacker to view application files that may contain sensitive information.
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 directory traversal vulnerability in Cisco Prime Infrastructure and EPN Manager web-based management interface allows authenticated remote attackers to access restricted files by manipulating HTTP request parameters containing file paths. The vulnerability stems from improper input sanitization, enabling attackers to use path traversal sequences (e.g., ../../../) to access sensitive application files outside the intended web root.
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
Evolved Programmable Network ManagerApplication
< 3.0.1
Prime InfrastructureApplication
< 3.4CVSS 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 installed Cisco management productCheck system for installed Cisco Prime Infrastructure or Evolved Programmable Network Manager (EPN Manager) by reviewing installed software packages, services, or consulting system inventory documentationAffected if Either Cisco Prime Infrastructure or EPN Manager is installed
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Determine product versionLocate the version number through the product's web management interface (typically in About/Help section), command-line interface, or installation filesAffected if Version is below 3.4 for Prime Infrastructure or below 3.0.1 for EPN Manager
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Verify web management interface is accessibleConfirm the web-based management interface is enabled and reachable by attempting to access the HTTPS HTTP interface on ports 443 or 8080, or by checking service statusAffected if Web management interface is exposed and operational
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Check authentication method exposureDetermine if remote authentication to the web interface is permitted, since this vulnerability requires an authenticated attackerAffected if Remote authentication to the web management interface is allowed
Your environment is affected if you run Cisco Prime Infrastructure below version 3.4 or EPN Manager below version 3.0.1 with the web management interface accessible to authenticated users.
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 data3.0.13.4
Apply the relevant Cisco security patches for Prime Infrastructure and EPN Manager as soon as possible. Until patches are applied, consider restricting web management interface access to trusted IPs only and implementing WAF rules to block directory traversal patterns in HTTP parameters.
Fix this in Evolved Programmable Network Manager
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing2.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,168.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-1820 — 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-2019-1820 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
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