CVE-2019-16263 Information

Description

The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Reference

https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios/ https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.mL75-L81 https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdf

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

7.4