Remote code execution in Cisco Webex Network Recording Player and Cisco Webex Player

1) Buffer overflow

EUVDB-ID: #VU26975

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-3194

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists in Cisco Webex Network Recording Player for Windows and Cisco Webex Player for Windows due to insufficient validation of certain elements with a Webex recording stored in either the Advanced Recording Format (ARF) or the Webex Recording Format (WRF). A remote attacker can create a specially crafted ARF or WRF file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Meetings sites: before 40.2

Cisco Webex Meetings Online: before 1.3.48

Cisco WebEx Meetings Server: before 4.0MR2 patch 3

Cisco WebEx Network Recording Player: All versions

Webex Player: All versions

External links

http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-player-Q7Rtgvby

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.