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CVE Record

CVE-2017-9447: In the web interface of Parallels Remote Application Server (RAS) 15.5 Build 16140, a vulnerability exists...

In the web interface of Parallels Remote Application Server (RAS) 15.5 Build 16140, a vulnerability exists due to improper validation of the file path when requesting a resource under the "RASHTML5Gateway" directory. A remote, unauthenticated attacker could exploit this weakness to read arbitrary files from the vulnerable system using path traversal sequences.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

This issue lets an unauthenticated remote attacker read files from a vulnerable Parallels RAS web interface by abusing path traversal in the RASHTML5Gateway resource path. For executives, the business risk is potential exposure of sensitive server files if the affected interface is reachable.

Executive priority

Treat internet-exposed affected systems as urgent because the weakness is unauthenticated and can disclose files. Internal-only deployments still warrant prompt review, especially if they host sensitive configuration or credentials.

Technical view

CVE-2017-9447 affects the web interface of Parallels Remote Application Server 15.5 Build 16140. The CVE describes improper file path validation for resources under RASHTML5Gateway, allowing unauthenticated arbitrary file reads via path traversal sequences.

Likely exposure

Exposure is most likely where Parallels RAS 15.5 Build 16140 has its web interface or HTML5 Gateway reachable from untrusted networks. The bundle does not establish other affected versions or CPEs.

Exploitation context

A public Exploit-DB reference exists, which indicates public exploit information is available. The source bundle does not include CISA KEV listing or other cited evidence of active exploitation, so active exploitation is not established here.

Researcher notes

The bundle lacks CVSS, CWE, CPE, and vendor remediation details. Scope should remain limited to Parallels RAS 15.5 Build 16140 unless additional vendor evidence expands affected versions. Avoid claiming active exploitation without KEV or another cited source.

Mitigation direction

  • Identify all Parallels RAS web interface and HTML5 Gateway deployments.
  • Restrict external access to the RAS web interface where business allows.
  • Check Parallels vendor guidance for fixed or supported replacement builds.
  • Prioritize upgrade or compensating controls for RAS 15.5 Build 16140.
  • Increase monitoring for suspicious requests to RASHTML5Gateway paths.

Validation and detection

  • Inventory Parallels RAS versions and flag 15.5 Build 16140.
  • Confirm whether the HTML5 Gateway web interface is enabled.
  • Review access logs for suspicious RASHTML5Gateway traversal indicators.
  • Validate that unauthenticated users cannot access sensitive server files.
  • Document vendor guidance, patch status, and remaining exposed instances.
Prepared
Confidence
medium
Sources
4

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

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.

description · low confidence lookup

File access behavior lookup

The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2017-9447 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
3Source 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.