F-Secure Safe Browser on iOS Address Bar clickjacking
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.3 | $0-$5k | 0.00 |
Summary
A vulnerability classified as problematic has been found in F-Secure Safe Browser on iOS. This issue affects some unknown processing of the component Address Bar Handler. This manipulation causes clickjacking. This vulnerability is tracked as CVE-2021-40835. The attack is possible to be carried out remotely. No exploit exists. It is recommended to upgrade the affected component.
Details
A vulnerability was found in F-Secure Safe Browser on iOS (iOS App Software) (version now known). It has been declared as problematic. Affected by this vulnerability is some unknown processing of the component Address Bar Handler. The manipulation with an unknown input leads to a clickjacking vulnerability. The CWE definition for the vulnerability is CWE-451. The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks. As an impact it is known to affect integrity.
The weakness was disclosed 12/16/2021. It is possible to read the advisory at f-secure.com. This vulnerability is known as CVE-2021-40835 since 09/09/2021. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1566.003 according to MITRE ATT&CK.
Upgrading eliminates this vulnerability.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.f-secure.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.4VulDB Meta Temp Score: 4.3
VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍
CNA Base Score: 4.6
CNA Vector (F-Secure): 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: ClickjackingCWE: CWE-451
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
09/09/2021 🔍12/16/2021 🔍
12/16/2021 🔍
12/22/2021 🔍
Sources
Vendor: f-secure.comAdvisory: f-secure.com
Status: Confirmed
CVE: CVE-2021-40835 (🔍)
GCVE (CVE): GCVE-0-2021-40835
GCVE (VulDB): GCVE-100-188467
Entry
Created: 12/16/2021 16:25Updated: 12/22/2021 14:55
Changes: 12/16/2021 16:25 (49), 12/22/2021 14:55 (1)
Complete: 🔍
Cache ID: 216::103
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
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