Remote code execution in Microsoft Skype for Business and Lync



Published: 2022-07-12
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-33633
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
Skype for Business Server
Server applications / Conferencing, Collaboration and VoIP solutions

Lync Server
Server applications / Other server solutions

Vendor Microsoft

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU65212

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-33633

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of user-supplied input in Skype for Business and Lync. A remote administrator can pass specially crafted input to the application and execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Skype for Business Server: 2015 CU12 - 2019 CU6

Lync Server: 2013 CU10


CPE2.3 External links

http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-33633

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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