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CVE Record

CVE-2018-4117: An issue was discovered in certain Apple products.

An issue was discovered in certain Apple products. iOS before 11.3 is affected. Safari before 11.1 is affected. iCloud before 7.4 on Windows is affected. iTunes before 12.7.4 on Windows is affected. watchOS before 4.3 is affected. The issue involves the fetch API in the "WebKit" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-4117 is a WebKit flaw that could let a malicious website bypass browser same-origin protections and read sensitive information. It affects older Apple software versions listed in the CVE source. The main business risk is data exposure from legacy endpoints that still browse the web or render web content.

Executive priority

Address during legacy endpoint cleanup and browser hardening work. Escalate if vulnerable devices handle sensitive data, browse untrusted sites, or cannot receive current vendor updates. No source in the bundle supports emergency treatment based on active exploitation.

Technical view

The issue is in WebKit's fetch API. A remote attacker could use a crafted website to bypass the Same Origin Policy and obtain sensitive information. Sources name iOS before 11.3, Safari before 11.1, iCloud for Windows before 7.4, iTunes for Windows before 12.7.4, and watchOS before 4.3.

Likely exposure

Exposure is most likely on unmanaged or legacy Apple and Windows endpoints running the named pre-fix versions. Listed Gentoo, Red Hat, Debian, and Ubuntu advisories indicate downstream WebKit-related packaging also tracked this issue, but the bundle does not provide detailed affected package versions.

Exploitation context

The source says remote attackers could exploit this through a crafted website. CISA KEV is false in the bundle, and no cited source here establishes active exploitation. Treat this as credible browser-engine exposure, not confirmed in-the-wild activity.

Researcher notes

Evidence is sufficient for affected version boundaries and vulnerability class, but incomplete for CVSS, CWE, detailed root cause, and downstream package scope. Avoid assuming exploit availability or specific non-Apple affected products beyond what the cited advisories confirm.

Mitigation direction

  • Upgrade iOS to 11.3 or later where applicable.
  • Upgrade Safari to 11.1 or later where applicable.
  • Upgrade iCloud for Windows to 7.4 or later.
  • Upgrade iTunes for Windows to 12.7.4 or later.
  • Upgrade watchOS to 4.3 or later.
  • Check listed vendor advisories for downstream WebKit package guidance.

Validation and detection

  • Inventory endpoints for the affected Apple product versions named in the CVE.
  • Confirm browser and WebKit-related package versions against vendor advisories.
  • Review vulnerability scanner findings for CVE-2018-4117 on legacy assets.
  • Prioritize systems that browse untrusted websites or process web content.
  • Document exceptions where devices cannot be upgraded.
Prepared
Confidence
medium
Sources
10

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.

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CVE-2018-4117 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
11Source 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.