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CVE-2018-11139: The '/common/ajax_email_connection_test.php' script in the Quest KACE System Management Appliance 8.0.318 i...

The '/common/ajax_email_connection_test.php' script in the Quest KACE System Management Appliance 8.0.318 is accessible by any authenticated user and can be abused to execute arbitrary commands on the system. This script is vulnerable to command injection via the unsanitized user input 'TEST_SERVER' sent to the script via the POST method.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2018-11139 lets any authenticated user of Quest KACE System Management Appliance 8.0.318 abuse an email connection test script to run system commands. For executives, the concern is insider or compromised-account misuse against a device that may manage endpoints and operational IT workflows.

Executive priority

Treat this as a high-priority legacy appliance risk if KACE SMA 8.0.318 is present. The business urgency comes from authenticated command execution on an IT management system, not from confirmed public exploitation in the supplied evidence.

Technical view

The vulnerable endpoint is /common/ajax_email_connection_test.php in Quest KACE SMA 8.0.318. The POST field TEST_SERVER is described as unsanitized user input, creating command injection and arbitrary command execution by authenticated users. The source bundle does not provide CVSS, CWE, fixed versions, or confirmed exploitation.

Likely exposure

Exposure is likely limited to organizations running Quest KACE SMA 8.0.318 where authenticated users can reach the management web interface. Risk increases if broad user groups, helpdesk accounts, or externally reachable access paths can authenticate to the appliance.

Exploitation context

The provided sources do not show CISA KEV listing or active exploitation. Exploitation requires authentication, but the described impact is arbitrary command execution on the appliance through a web-accessible script.

Researcher notes

The key evidence is narrow but direct: an authenticated command injection in TEST_SERVER for ajax_email_connection_test.php. The bundle lacks affected-version range, patch details, exploit telemetry, and CVSS. Avoid broad product claims beyond Quest KACE SMA 8.0.318 unless verified from vendor material.

Mitigation direction

  • Inventory Quest KACE SMA instances and identify any version 8.0.318 deployments.
  • Check Quest or vendor advisory guidance for fixed releases or supported mitigations.
  • Restrict KACE SMA web access to trusted administrative networks and VPN paths.
  • Limit authenticated access to users who require the email connection test functionality.
  • Review appliance and web logs for unusual access to ajax_email_connection_test.php.

Validation and detection

  • Confirm whether any deployed KACE SMA instance is version 8.0.318.
  • Verify which authenticated roles can access the vulnerable script.
  • Check whether the management interface is reachable from untrusted networks.
  • Review historical logs for requests to /common/ajax_email_connection_test.php.
  • Confirm remediation status against vendor guidance before closing the finding.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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ATT&CK lookup starting points

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description · low confidence lookup

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.

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cve · low confidence lookup

CVE-2018-11139 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.