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CVE-2019-5431

CVE information

Published

3 years ago

Last Modified

2 years ago

CVSSv2.0 Severity

Medium

CVSSv3.1 Severity

Medium

Impact Analysis

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..

CVSSv2.0 Score

Severity
Medium
Base Score
5.5/10
Exploit Score
8/10
Access Vector
Network
Access Complexity
Low
Authentication Required
Single
Impact Score
4.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
Partial

CVSSv3.1 Score

Severity
Medium
Base Score
5.4/10
Exploit Score
2.8/10
Access Vector
Network
Access Complexity
Low
Privileges Required
Low
Impact Score
2.5/10
Confidentiality Impact
Low
Availability Impact
None
Integrity Impact
Low
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:twitter:twitter_kit:*:*:*:*:*:iphone_os:*:*
  Yes
3.0 -