PT-2021-22971 · Unknown · Safe Browser For Ios

Published 2021-12-16 · Updated 2022-01-03 · CVE-2021-40835

Positive Technologies (AI Summary)

CVSS v3.1

4.6

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Safe Browser for iOS (affected versions not specified)

Description A URL address bar spoofing issue was discovered. When a user clicks on a specially crafted malicious URL, they may be tricked into thinking the content comes from a valid domain, while it actually comes from another. This is done by using a very long username part of the URL, so the user cannot see the domain name. A remote attacker can leverage this to perform a URL address bar spoofing attack.

Recommendations For all affected versions, the fix is that the browser no longer shows the username part in the address bar.

Fix

Related Identifiers

CVE-2021-40835

Affected Products

Safe Browser For Ios

References · 5

• https://f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-40835 · Security Note
• https://f-secure.com/en/business/support-and-downloads/security-advisories · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-40835 · Vendor Advisory
• https://t.me/cibsecurity/34135 · Telegram Post