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CVE-2021-40835

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

Published: Dec 16, 2021Updated: Nov 21, 2024 Sources: CVE List NVDNVD-CWE-Other
NVD MITRE
4.6CVSSMEDIUM
EPSS Score
0.7%
Top 51.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:NAC:LPR:LUI:RS:UC:LI:LA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

NVD-CWE-Other

Affected Products

F-Secure Mobile SecurityF-SecureSecurity Products
safef-secureSecurity Products
f-securecommercialFISecurity Productsaka fsecure, f-secure

Exploitability

Official Patch Available

References

https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
f-secure.com
https://www.f-secure.com/en/business/support-and-downloads/security-advisories
f-secure.com

Timeline

Published
Dec 16, 2021
Last Updated
Nov 21, 2024

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