Samsung Galaxy S9 Captive Portal redirect

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.
7.2$0-$5k0.00

A vulnerability has been found in Samsung Galaxy S9 (Smartphone Operating System) (the affected version is unknown) and classified as critical. Affected by this vulnerability is an unknown code of the component Captive Portal. The manipulation with an unknown input leads to a redirect vulnerability. The CWE definition for the vulnerability is CWE-601. A web application accepts a user-controlled input that specifies a link to an external site, and uses that link in a Redirect. This simplifies phishing attacks. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Samsung Galaxy S9 prior to January 2019 Security Update (SMR-JAN-2019 - SVE-2018-13467). User interaction is required to exploit this vulnerability in that the target must connect to a wireless network. The specific flaw exists within the captive portal. By manipulating HTML, an attacker can force a page redirection. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-7476.

The bug was discovered 03/05/2019. The weakness was published 06/03/2019. This vulnerability is known as CVE-2019-6741 since 01/24/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1204.001 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 90 days. During that time the estimated underground price was around $0-$5k.

Applying the patch SMR-JAN-2019 - SVE-2018-13467 is able to eliminate this problem.

Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Zero Day Initiative): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Redirect
CWE: CWE-601
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: SMR-JAN-2019 - SVE-2018-13467

Timelineinfo

01/24/2019 🔍
03/05/2019 +40 days 🔍
06/03/2019 +90 days 🔍
06/04/2019 +1 days 🔍
09/26/2023 +1575 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: zerodayinitiative.com
Status: Not defined

CVE: CVE-2019-6741 (🔍)
OSVDB: - Samsung Galaxy S9 captive portal code execution

Entryinfo

Created: 06/04/2019 12:42 PM
Updated: 09/26/2023 02:47 PM
Changes: 06/04/2019 12:42 PM (40), 06/18/2020 08:50 PM (18), 09/26/2023 02:43 PM (4), 09/26/2023 02:47 PM (12)
Complete: 🔍
Cache ID: 44:022:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!