Privilege escalation in Microsoft Visual Studio Extension Installer Service



Published: 2020-04-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-0900
CWE-ID CWE-264
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Visual Studio
Universal components / Libraries / Software for developers

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU26862

Risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-0900

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the Visual Studio Extension Installer Service improperly handles file operations. A local user can run a specially crafted application and gain elevated privileges on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Visual Studio: 15.9 - 2015 Update 3

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0900


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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