Microsoft Visual Studio 2017 15.9/2019 16.0/2019 16.4/2019 16.5 Updater Service privileges management

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Microsoft Visual Studio 2017 15.9/2019 16.0/2019 16.4/2019 16.5. It has been rated as critical. Affected by this issue is some unknown functionality of the component Updater Service. The manipulation leads to privileges management. This vulnerability is traded as CVE-2020-0899. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Microsoft Visual Studio 2017 15.9/2019 16.0/2019 16.4/2019 16.5 (Programming Tool Software). This issue affects an unknown function of the component Updater Service. 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. The summary by CVE is:

An elevation of privilege vulnerability exists when Microsoft Visual Studio updater service improperly handles file permissions, aka 'Microsoft Visual Studio Elevation of Privilege Vulnerability'.

The weakness was shared 04/14/2020 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2020-0899. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1068 for this issue. The advisory points out:

An elevation of privilege vulnerability exists when Microsoft Visual Studio updater service improperly handles file permissions. An attacker who successfully exploited this vulnerability could overwrite arbitrary file content in the security context of the local system.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entry VDB-153210 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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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: Yes

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: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

11/04/2019 🔍
04/14/2020 +162 days 🔍
04/14/2020 +0 days 🔍
04/15/2020 +1 days 🔍
10/09/2020 +177 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: portal.msrc.microsoft.com
Status: Confirmed
Coordinated: 🔍

CVE: CVE-2020-0899 (🔍)
GCVE (CVE): GCVE-0-2020-0899
GCVE (VulDB): GCVE-100-153209
See also: 🔍

Entryinfo

Created: 04/15/2020 09:46
Updated: 10/09/2020 20:54
Changes: 04/15/2020 09:46 (44), 04/15/2020 09:51 (17), 10/09/2020 20:54 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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