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MEDIUM · 6.5

CVE-2016-4644

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 w...

Vulnerability 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.

CVSS Score

6.5

MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
AppleApple Tv< 9.2.2
AppleIphone Os< 9.3.3
AppleMac Os>= 10.11.0, < 10.11.6

Related Weaknesses (CWE)

CWE-200

References

FAQ

What is CVE-2016-4644?

CVE-2016-4644 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 w...

How severe is CVE-2016-4644?

CVE-2016-4644 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2016-4644?

Check the references section above for vendor advisories and patch information. Affected products include: Apple Apple Tv, Apple Iphone Os, Apple Mac Os.