CVE-2016-4644

MEDIUM

Apple tvOS < 9.2.2, iOS < 9.3.3, macOS 10.11.0-10.11.5 - Keychain Credential Exposure via HTTP Auth Downgrade

Title source: llm
STIX 2.1

Description

In iOS before 9.3.3, tvOS before 9.2.2, and OS X El Capitan before v10.11.6 and Security Update 2016-004, a downgrade issue existed with HTTP authentication credentials saved in Keychain. This issue was addressed by storing the authentication types with the credentials.

References (3)

Core 3
Core References
Vendor Advisory x_refsource_misc
https://support.apple.com/HT206902
Vendor Advisory x_refsource_misc
https://support.apple.com/HT206903
Vendor Advisory x_refsource_confirm
https://support.apple.com/HT206905

Scores

CVSS v3 6.5
EPSS 0.0133
EPSS Percentile 67.7%
Attack Vector NETWORK
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-200
Status published
Products (3)
apple/apple_tv < 9.2.2
apple/iphone_os < 9.3.3
apple/mac_os 10.11.0 - 10.11.6
Published Jan 11, 2019
Tracked Since Feb 18, 2026