Vulnerability identifier: #VU24163

Vulnerability risk: Medium

CVSSv3.1: 6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]

CVE-ID: CVE-2020-3116

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco WebEx Event Center
Client/Desktop applications / Office applications
Cisco Webex Support Center
Client/Desktop applications / Office applications
Cisco WebEx Meeting Center
Client/Desktop applications / Multimedia software
Cisco WebEx Training Center
Other software / Other software solutions

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of Universal Communications Format UCF media files. A remote attacker can trick a victim to open a specially crafted UCF file and cause the application to quit unexpectedly.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Cisco WebEx Event Center: All versions

Cisco WebEx Meeting Center: All versions

Cisco WebEx Training Center: All versions

Cisco Webex Support Center: All versions

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20200108-webex-centers-dos

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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.