What is the severity of CVE-2019-5431?

CVE-2019-5431 is classified as a medium severity vulnerability.

How do I fix CVE-2019-5431?

To fix CVE-2019-5431, update Twitter Kit for iOS to version 3.5.0 or later.

What causes CVE-2019-5431?

CVE-2019-5431 is caused by an incomplete fix for an earlier vulnerability, CVE-2017-0911, leading to a callback verification flaw.

Which versions of Twitter Kit for iOS are affected by CVE-2019-5431?

Twitter Kit for iOS versions 3.0 to 3.4.0 are affected by CVE-2019-5431.

What impact does CVE-2019-5431 have on user security?

CVE-2019-5431 may allow attackers to bypass authentication and provide alternate credentials in the "Login with Twitter" flow.

Vulnerability/
CVE-2019-5431

medium

5.5

CWE

345 352

6/5/2019

4/8/2024

CVE-2019-5431: CSRF

First published: Mon May 06 2019(Updated: )

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.

Credit: support@hackerone.com

Affected Software	Affected Version	How to fix
Twitter Twitter Kit	>=3.0<=3.4.0

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Reference Links

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

Frequently Asked Questions

What is the severity of CVE-2019-5431?
CVE-2019-5431 is classified as a medium severity vulnerability.
How do I fix CVE-2019-5431?
To fix CVE-2019-5431, update Twitter Kit for iOS to version 3.5.0 or later.
What causes CVE-2019-5431?
CVE-2019-5431 is caused by an incomplete fix for an earlier vulnerability, CVE-2017-0911, leading to a callback verification flaw.
Which versions of Twitter Kit for iOS are affected by CVE-2019-5431?
Twitter Kit for iOS versions 3.0 to 3.4.0 are affected by CVE-2019-5431.
What impact does CVE-2019-5431 have on user security?
CVE-2019-5431 may allow attackers to bypass authentication and provide alternate credentials in the "Login with Twitter" flow.

collector/nvd-index
agent/type
agent/softwarecombine
collector/mitre-cve
source/MITRE
agent/weakness
agent/last-modified-date
agent/author
agent/references
agent/severity
agent/event
agent/tags
agent/description
agent/first-publish-date
agent/source
vendor/twitter
canonical/twitter twitter kit
version/twitter twitter kit/3.0
version/twitter twitter kit/3.4.0

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