Information disclosure in Cisco Webex Meetings Client for Windows, Webex Meetings Desktop App and Webex Teams



Published: 2020-09-04
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-3541
CWE-ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
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Cisco Webex Meetings Client for Windows
Client/Desktop applications / Office applications

Cisco Webex Teams
Client/Desktop applications / Office applications

Cisco Webex Meetings Desktop App
Client/Desktop applications / Other client software

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Information disclosure

EUVDB-ID: #VU46278

Risk: Low

CVSSv3.1: 3.9 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3541

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to unsafe logging of authentication requests by the affected software. A local administrator can read log files that are stored in the application directory and gain unauthorized access to sensitive information on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Meetings Client for Windows: before 40.6.6, 39.5.25

Cisco Webex Meetings Desktop App: before 40.6.6, 39.5.25

Cisco Webex Teams: before 3.0.15711.0


CPE2.3 External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-media-znjfwHD6

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.



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