CVE-2019-5431 Information

Description

This vulnerability was caused by an incomplete fix to CVE-2017-0911. Twitter Kit for iOS versions 3.0 to 3.4.0 is vulnerable to a callback verification flaw in the \Login with Twitter\ component allowing an attacker to provide alternate credentials. In the final step of \Login with Twitter\ authentication information is passed back to the application using the registered custom URL scheme (typically twitterkit-consumer-key) on iOS. Because the callback handler did not verify the authenticity of the response this step is vulnerable to forgery potentially allowing attacker to associate a Twitter account with a third-party service.

CVSS Vector

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

Reference

https://blog.twitter.com/developer/en_us/topics/tips/2018/vulnerability-in-twitter-kit-for-ios.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

LOW

Base Score

NONE

Base Severity

5.4