Security readout for executives and security teams
Plain-English summary
This flaw affects Puppet Agent on Windows. If an attacker can get pxp-agent to use a specially crafted configuration file, they may cause arbitrary code to run with elevated privileges. The issue is limited to listed Puppet Agent branches and fixed versions are identified.
Executive priority
Prioritize remediation for Windows Puppet-managed systems because the issue can lead to privilege escalation through arbitrary code loading. Urgency is lower where affected versions are absent or configuration files are tightly controlled, but patching should not wait for exploit confirmation.
Technical view
CVE-2018-6515 is a Windows-only privilege escalation issue in Puppet Agent pxp-agent configuration loading. A crafted configuration file can cause pxp-agent to load arbitrary code. Affected versions are 1.10.x before 1.10.13, 5.3.x before 5.3.7, and 5.5.x before 5.5.2.
Likely exposure
Exposure is most likely on Windows systems running the affected Puppet Agent versions, especially where pxp-agent is installed and configuration files can be modified or influenced by lower-privileged users or deployment processes.
Exploitation context
The provided sources do not show active exploitation, public exploit availability, or CISA KEV listing. Exploitation depends on getting pxp-agent to load a maliciously crafted configuration file, which suggests local or configuration-management access may be relevant.
Researcher notes
The source bundle provides affected versions, platform scope, and the core condition: a specially crafted configuration file. It does not provide CVSS, CWE, detailed attack prerequisites, or exploit telemetry. Treat validation as version and configuration-permission focused.
Mitigation direction
- Upgrade Puppet Agent 1.10.x to 1.10.13 or later.
- Upgrade Puppet Agent 5.3.x to 5.3.7 or later.
- Upgrade Puppet Agent 5.5.x to 5.5.2 or later.
- Check Puppet vendor guidance for any environment-specific remediation notes.
- Restrict write access to Puppet and pxp-agent configuration paths.
Validation and detection
- Inventory Windows hosts running Puppet Agent.
- Confirm Puppet Agent versions against the affected version ranges.
- Verify pxp-agent is present or enabled on impacted Windows hosts.
- Review permissions on Puppet and pxp-agent configuration files.
- Check patch deployment records for the fixed Puppet Agent versions.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-6515 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://puppet.com/security/cve/CVE-2018-6515CVE reference · x_refsource_CONFIRM
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.