Samsung Galaxy S8/Galaxy S8+/Galaxy Note 8 Bluetooth Pseudo Random Number Generator weak prng

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Samsung Galaxy S8, Galaxy S8+ and Galaxy Note 8. It has been declared as critical. This impacts an unknown function of the component Bluetooth Pseudo Random Number Generator. The manipulation results in weak prng. This vulnerability is cataloged as CVE-2020-6616. The attack must originate from the local network. There is no exploit available.

Detailsinfo

A vulnerability classified as critical has been found in Samsung Galaxy S8, Galaxy S8+ and Galaxy Note 8 (Smartphone Operating System) (version now known). Affected is some unknown processing of the component Bluetooth Pseudo Random Number Generator. The manipulation with an unknown input leads to a weak prng vulnerability. CWE is classifying the issue as CWE-338. The product uses a Pseudo-Random Number Generator (PRNG) in a security context, but the PRNG's algorithm is not cryptographically strong. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Some Broadcom chips mishandle Bluetooth random-number generation because a low-entropy Pseudo Random Number Generator (PRNG) is used in situations where a Hardware Random Number Generator (HRNG) should have been used to prevent spoofing. This affects, for example, Samsung Galaxy S8, S8+, and Note8 devices with the BCM4361 chipset. The Samsung ID is SVE-2020-16882 (May 2020).

The weakness was shared 05/08/2020 (Website). The advisory is shared for download at security.samsungmobile.com. This vulnerability is traded as CVE-2020-6616 since 01/08/2020. The exploitability is told to be easy. Access to the local network is required for this attack to succeed. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

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

The entries VDB-111342, VDB-111380, VDB-115287 and VDB-115285 are related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.4

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

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Weak prng
CWE: CWE-338 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/08/2020 🔍
05/08/2020 +121 days 🔍
05/09/2020 +1 days 🔍
10/16/2020 +160 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: security.samsungmobile.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2020-6616 (🔍)
GCVE (CVE): GCVE-0-2020-6616
GCVE (VulDB): GCVE-100-154944
See also: 🔍

Entryinfo

Created: 05/09/2020 14:39
Updated: 10/16/2020 09:53
Changes: 05/09/2020 14:39 (37), 05/09/2020 14:44 (18), 10/16/2020 09:53 (1)
Complete: 🔍
Cache ID: 216::103

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