S/MIME Client Certificate Tracking Vulnerability in Apple Products
CVE-2018-4221

7.5HIGH

Key Information:

Vendor
Apple
Status
Mac Os X
iPhone OS
Vendor
CVE Published:
8 June 2018

Summary

A security issue exists in certain Apple products that allows websites to track user activities by exploiting the transmission of S/MIME client certificates. Affected versions include iOS before 11.4 and macOS before 10.13.5. This vulnerability could potentially allow attackers to implement tracking mechanisms on unsuspecting users.

References

http://www.securitytracker.com/id/1041027
vdb-entryx_refsource_SECTRACK
http://www.securityfocus.com/bid/104897
vdb-entryx_refsource_BID
https://support.apple.com/HT208848
x_refsource_CONFIRM

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.