Vulnerability Description
An URL Address bar spoofing vulnerability was discovered in Safe Browser for iOS. When user clicks on a specially crafted a malicious URL, if user does not carefully pay attention to url, user may be tricked to think content may be coming from a valid domain, while it comes from another. This is performed by using a very long username part of the url so that user cannot see the domain name. A remote attacker can leverage this to perform url address bar spoofing attack. The fix is, browser no longer shows the user name part in address bar.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F-Secure | Safe | < 18.3 |
References
- https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-Vendor Advisory
- https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesVendor Advisory
- https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-Vendor Advisory
- https://www.f-secure.com/en/business/support-and-downloads/security-advisoriesVendor Advisory
FAQ
What is CVE-2021-40835?
CVE-2021-40835 is a vulnerability with a CVSS score of 4.6 (MEDIUM). An URL Address bar spoofing vulnerability was discovered in Safe Browser for iOS. When user clicks on a specially crafted a malicious URL, if user does not carefully pay attention to url, user may be ...
How severe is CVE-2021-40835?
CVE-2021-40835 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-40835?
Check the references section above for vendor advisories and patch information. Affected products include: F-Secure Safe.