Sierra Wireless Windows Mobile Broadband Driver Package prior Build 5043 Hard Link privileges management

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Sierra Wireless Windows Mobile Broadband Driver Package. It has been rated as critical. The impacted element is an unknown function. This manipulation as part of Hard Link causes privileges management. This vulnerability appears as CVE-2020-8948. The attack requires local access. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Sierra Wireless Windows Mobile Broadband Driver Package (Hardware Driver Software). It has been declared as critical. Affected by this vulnerability is an unknown function. The manipulation as part of a Hard Link leads to a privileges management vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

The Sierra Wireless Windows Mobile Broadband Driver Packages (MBDP) before build 5043 allows an unprivileged user to overwrite arbitrary files in arbitrary folders using hard links. An unprivileged user could leverage this vulnerability to execute arbitrary code with system privileges.

The weakness was presented 04/15/2020 (Website). The advisory is shared at source.sierrawireless.com. This vulnerability is known as CVE-2020-8948 since 02/12/2020. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

Upgrading to version Build 5043 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.6

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: 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: 🔍

Upgrade: Windows Mobile Broadband Driver Package Build 5043

Timelineinfo

02/12/2020 🔍
04/15/2020 +63 days 🔍
04/16/2020 +1 days 🔍
04/16/2020 +0 days 🔍

Sourcesinfo

Advisory: source.sierrawireless.com
Status: Not defined

CVE: CVE-2020-8948 (🔍)
GCVE (CVE): GCVE-0-2020-8948
GCVE (VulDB): GCVE-100-153853

Entryinfo

Created: 04/16/2020 14:59
Updated: 04/16/2020 15:04
Changes: 04/16/2020 14:59 (38), 04/16/2020 15:04 (18)
Complete: 🔍
Cache ID: 216::103

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