Multiple vulnerabilities in Zoom Rooms client for Windows



Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-34120
CVE-2023-34121
CWE-ID CWE-269
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Zoom Rooms Client for Windows
Client/Desktop applications / Office applications

Vendor Zoom Video Communications, Inc.

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper privilege management

EUVDB-ID: #VU77159

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-34120

CWE-ID: CWE-269 - Improper Privilege Management

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges.

The vulnerability exists due to improper privilege management. A local user can utilize higher level system privileges maintained by the Zoom client to spawn processes with escalated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Rooms Client for Windows: 5.0.0 1420.0426 - 5.13.10 2558

CPE2.3 External links

https://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-23012


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.

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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

2) Input validation error

EUVDB-ID: #VU77161

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-34121

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Zoom Rooms Client for Windows: 5.0.0 1420.0426 - 5.13.10 2558

CPE2.3 External links

https://explore.zoom.us/en/trust/security/security-bulletin/#ZSB-23013


Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website or open a file.

Is there known malware, which exploits this vulnerability?

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



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