Synaptics VFS75xx External Flash privileges management

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Synaptics VFS75xx. It has been declared as critical. This affects an unknown part of the component External Flash Handler. Such manipulation leads to privileges management. This vulnerability is traded as CVE-2019-18618. An attack has to be approached locally. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Synaptics VFS75xx (version now known) and classified as critical. Affected by this issue is some unknown processing of the component External Flash Handler. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Incorrect access control in the firmware of Synaptics VFS75xx family fingerprint sensors that include external flash (all versions prior to 2019-11-15) allows a local administrator or physical attacker to compromise the confidentiality of sensor data via injection of an unverified partition table.

The weakness was shared 07/22/2020 (Website). The advisory is shared for download at synaptics.com. This vulnerability is handled as CVE-2019-18618 since 10/29/2019. The exploitation is known to be difficult. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.9
VulDB Temp Score: 4.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.0
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: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/29/2019 🔍
07/22/2020 +267 days 🔍
07/22/2020 +0 days 🔍
11/05/2020 +106 days 🔍

Sourcesinfo

Advisory: synaptics.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2019-18618 (🔍)
GCVE (CVE): GCVE-0-2019-18618
GCVE (VulDB): GCVE-100-158864

Entryinfo

Created: 07/22/2020 19:09
Updated: 11/05/2020 09:30
Changes: 07/22/2020 19:09 (37), 07/22/2020 19:14 (17), 11/05/2020 09:30 (1)
Complete: 🔍
Cache ID: 216::103

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