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Prime InfrastructureApplication · Cisco

CVE-2018-15379

CRITICAL · 9.8 CVSS v3.0 Published 2018-10-05
No fix yet
No fix has been published. The vendor has not shipped a fixed release or patch. You remain exposed.
See remediation →
100/100
Remediation priority · Urgent
High EPSS Public exploit Remotely reachable No privileges Zero-click

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 · unedited
A vulnerability in which the HTTP web server for Cisco Prime Infrastructure (PI) has unrestricted directory permissions could allow an unauthenticated, remote attacker to upload an arbitrary file. This file could allow the attacker to execute commands at the privilege level of the user prime. This user does not have administrative or root privileges. The vulnerability is due to an incorrect permission setting for important system directories. An attacker could exploit this vulnerability by uploading a malicious file by using TFTP, which can be accessed via the web-interface GUI. A successful exploit could allow the attacker to run commands on the targeted application without authentication.

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

A detailed technical summary for this CVE is being prepared.

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
Prime InfrastructureApplication
Affected:= 3.2= 3.2\(0.0\)= 3.2\(1.0\)= 3.2\(2.0\)= 3.3= 3.3\(0.0\)= 3.4= 3.4\(0.0\)= 3.5\(0.0\)

CVSS 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
High
Integrity
High
Availability
High

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

dbcve · scoped
Recommended fix Moderate confidence

Cisco Prime Infrastructure 3.3 or later 3.2.x maintenance release

  1. 1. Verify current Cisco Prime Infrastructure version by navigating to Administration > Settings > System Settings > Version Info
  2. 2. Download the latest Cisco Prime Infrastructure 3.2 maintenance release or upgrade to 3.3+ from the Cisco Software Download center (tools.cisco.com)
  3. 3. Review Cisco Prime Infrastructure upgrade guide for prerequisites including disk space, backup requirements, and downtime procedures
  4. 4. Create a full backup of the Prime Infrastructure database before upgrading
  5. 5. Schedule maintenance window as upgrade may require downtime
  6. 6. Run the upgrade installer following Cisco's documented upgrade procedure
  7. 7. After upgrade, verify the TFTP service is properly restricted and only authorized directories are accessible
Caveat Upgrade may require downtime; ensure backup and test in staging first; review Cisco compatibility matrix for required browser/client versions

Generated from the published advisory — verify against the referenced sources before acting.

No vendor fix exists Prime Infrastructure has not published a patch for this.

There is no version to upgrade to and no patch to apply. Every affected install stays exposed until the vendor ships a fix — or somebody else builds one.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2018-15379 in production — separate from our analysis above.

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What this is

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