#VU74501 Arbitrary file upload in Cisco Webex Meetings Online and Cisco Webex Meetings - CVE-2023-20134

Vulnerability identifier: #VU74501

Vulnerability risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-20134

CWE-ID: CWE-434

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Webex Meetings Online
Server applications / Conferencing, Collaboration and VoIP solutions
Cisco Webex Meetings
Server applications / Conferencing, Collaboration and VoIP solutions

Vendor: Cisco Systems, Inc

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload. A remote user can upload a malicious file as recordings.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Meetings Online: 33.8.0.584

Cisco Webex Meetings: All versions

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External links
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wbx-sxss-fupl-64uHbcm5

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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