Samsung KNOX 1.0 eCryptFS Key Generator cryptographic issues

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.3$0-$5k0.03

A vulnerability, which was classified as critical, was found in Samsung KNOX 1.0. Affected is an unknown function of the component eCryptFS Key Generator. The manipulation with an unknown input leads to a weak encryption vulnerability. CWE is classifying the issue as CWE-310. This is going to have an impact on confidentiality. CVE summarizes:

Samsung KNOX 1.0 uses a weak eCryptFS Key generation algorithm, which makes it easier for local users to obtain sensitive information by leveraging knowledge of the TIMA key and a brute-force attack.

The bug was discovered 01/16/2016. The weakness was released 01/27/2017 (Website). The advisory is shared for download at lists.openwall.net. This vulnerability is traded as CVE-2016-1919 since 01/15/2016. The attack needs to be approached locally. 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.

The vulnerability was handled as a non-public zero-day exploit for at least 377 days. During that time the estimated underground price was around $0-$5k.

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

Entries connected to this vulnerability are available at 96098 and 96097.

Productinfo

Vendor

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CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.0
VulDB Temp Score: 4.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.7
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Weak encryption
CWE: CWE-310
ATT&CK: T1600

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/15/2016 🔍
01/16/2016 +1 days 🔍
01/27/2017 +377 days 🔍
01/27/2017 +0 days 🔍
01/28/2017 +1 days 🔍
08/04/2020 +1284 days 🔍

Sourcesinfo

Vendor: samsung.com

Advisory: lists.openwall.net
Status: Not defined

CVE: CVE-2016-1919 (🔍)
OSVDB: - CVE-2016-1919 - Samsung - Knox - Weak Encryption Issue

See also: 🔍

Entryinfo

Created: 01/28/2017 09:08 AM
Updated: 08/04/2020 08:40 PM
Changes: (3) vulnerability_discoverydate source_cve_assigned source_osvdb_title
Complete: 🔍

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