Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Twitter Kit | >= 3.0, <= 3.4.0 |
Related Weaknesses (CWE)
References
- https://blog.twitter.com/developer/en_us/topics/tips/2018/vulnerability-in-twittVendor Advisory
- https://blog.twitter.com/developer/en_us/topics/tips/2018/vulnerability-in-twittVendor Advisory
FAQ
What is CVE-2019-5431?
CVE-2019-5431 is a vulnerability with a CVSS score of 5.4 (MEDIUM). 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 allow...
How severe is CVE-2019-5431?
CVE-2019-5431 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-5431?
Check the references section above for vendor advisories and patch information. Affected products include: Twitter Twitter Kit.