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SafariWeb browser · Apple

CVE-2016-7599

MEDIUM · 6.5 CVSS v3.0 Published 2017-02-20
Fix available
A fix is available. Upgrade to after 12.5.3 or later.
See remediation →
72/100
Remediation priority · Elevated
Remotely reachable No privileges

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
An issue was discovered in certain Apple products. iOS before 10.2 is affected. Safari before 10.0.2 is affected. iCloud before 6.1 is affected. iTunes before 12.5.4 is affected. The issue involves the "WebKit" component. It allows remote attackers to bypass the Same Origin Policy and obtain sensitive information via a crafted web site that uses HTTP redirects.

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 · high confidence

This is a Same Origin Policy (SOP) bypass vulnerability in WebKit affecting iOS, Safari, iCloud, and iTunes. Attackers can craft malicious websites using HTTP redirects to bypass the Same Origin Policy security mechanism and obtain sensitive information that should be protected by cross-origin restrictions.

MitigationUpdate affected Apple products to the patched versions: iOS 10.2 or later, Safari 10.0.2 or later, iCloud 6.1 or later, and iTunes 12.5.4 or later.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

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
SafariWeb browser
Affected:<= 10.0.1
Iphone OsOperating system
Affected:<= 10.1.1
IcloudApplication
Affected:<= 6.0.1
ItunesApplication
Affected:<= 12.5.3

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
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check Safari version on macOS
    Open Safari, click Safari menu, select About Safari. Compare the version number to 10.0.1 (affected if <= 10.0.1)
    Affected if Safari version is 10.0.1 or earlier
  2. Check iOS version on iPhone/iPad
    Go to Settings > General > About. Look at the Version field. Compare to 10.1.1 (affected if <= 10.1.1)
    Affected if iOS version is 10.1.1 or earlier
  3. Check iTunes version on Windows or macOS
    Open iTunes, click Help > About iTunes. Compare the version number to 12.5.3 (affected if <= 12.5.3)
    Affected if iTunes version is 12.5.3 or earlier
  4. Check iCloud for Windows version
    Open iCloud, click the gear icon or Help > About iCloud. Compare the version to 6.0.1 (affected if <= 6.0.1)
    Affected if iCloud for Windows version is 6.0.1 or earlier

You are affected if any of these products (Safari, iOS, iTunes, or iCloud for Windows) are installed with versions at or below the affected version numbers listed.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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.

From vendor data
Upgrade available Upgrade to a release after 12.5.3
Interim mitigation

Update affected Apple products to the patched versions: iOS 10.2 or later, Safari 10.0.2 or later, iCloud 6.1 or later, and iTunes 12.5.4 or later.

Fix this in Safari Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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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-2016-7599 in production — separate from our analysis above.

No notes yet

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data