F-Secure Safe Browser Address Bar clickjacking

EntryeditHistoryDiffjsonxmlCTI

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.3	$0-$5k	0.03

A vulnerability, which was classified as critical, has been found in F-Secure Safe Browser (unknown version). This issue affects some unknown processing of the component Address Bar Handler. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-451. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability affecting F-Secure SAFE browser was discovered. An attacker can potentially exploit Javascript window.open functionality in SAFE Browser which could lead address bar spoofing attacks.

The weakness was disclosed 05/12/2022. It is possible to read the advisory at f-secure.com. The identification of this vulnerability is CVE-2022-28873 since 04/08/2022. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/14/2022). The attack technique deployed by this issue is T1566.003 according to MITRE ATT&CK.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Productinfoedit

Vendor

F-Secure

Name

Safe Browser

CPE 2.3infoedit

🔒

CPE 2.2infoedit

🔒

CVSSv3infoedit

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (F-Secure): 🔒

CVSSv2infoedit

AV	AC	Au	C	I	A
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🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-451
ATT&CK: T1566.003

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfoedit

04/08/2022 CVE reserved
05/12/2022 +34 days Advisory disclosed
05/12/2022 +0 days VulDB entry created
05/14/2022 +2 days VulDB last update

Sourcesinfoedit

Vendor: f-secure.com

Advisory: f-secure.com
Status: Confirmed

CVE: CVE-2022-28873 (🔒)

Entryinfoedit

Created: 05/12/2022 04:25 PM
Updated: 05/14/2022 06:04 PM
Changes: (12) vulnerability_cvss3_meta_basescore vulnerability_cvss3_meta_tempscore source_cve_cna vulnerability_cvss3_cna_basescore vulnerability_cvss3_cna_av vulnerability_cvss3_cna_ac vulnerability_cvss3_cna_pr vulnerability_cvss3_cna_ui vulnerability_cvss3_cna_s vulnerability_cvss3_cna_c vulnerability_cvss3_cna_i vulnerability_cvss3_cna_a
Complete: 🔍