CVE-2021-40835

URL Address Bar Spoofing in F-Secure SAFE Browser for iOS

Medium · published December 16, 2021

CVSS v3.1
4.6
EPSS
1%
Percentile
53.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
4.6 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00729 · 53.7th percentile
Published
2021-12-16T10:58Z
EPSS history
Timeline
  • 16 DEC 10:58Z
    URL Address Bar Spoofing in F-Secure SAFE Browser for iOS
    cvelistv5