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CVE-2021-44751

F-Secure SAFE Browser vulnerable to USSD attacks

Published: Mar 25, 2022Updated: Nov 21, 2024 Sources: CVE List NVDCWE-276
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.6%
Top 58.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A vulnerability affecting F-Secure SAFE browser was discovered. A maliciously crafted website attached with USSD code in JavaScript or iFrame can trigger dialer application from F-Secure browser which can be exploited by an attacker to send unwanted USSD messages or perform unwanted calls. In most modern Android OS, dialer application will require user interaction, however, some older Android OS may not need user interaction.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:RS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-276

Affected Products

safef-secureSecurity Products
F-Secure SAFE Browser for Android Version 18.5 & belowF-SecureSecurity Products
f-securecommercialFISecurity Productsaka fsecure, f-secure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://www.f-secure.com/en/business/programs/vulnerability-reward-program/hall-of-fame
f-secure.com

Timeline

Published
Mar 25, 2022
Last Updated
Nov 21, 2024

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