Remote code execution in Microsoft Teams



Published: 2020-11-10
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-17091
CWE-ID CWE-94
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Microsoft Teams
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Code Injection

EUVDB-ID: #VU48353

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-17091

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in Microsoft Teams. A remote attacker can execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft Teams: All versions

External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17091


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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



###SIDEBAR###