Vulnerability identifier: #VU13912

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-0379

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Webex Player
Client/Desktop applications / Multimedia software
Cisco WebEx Network Recording Player
Client/Desktop applications / Multimedia software

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists in the Cisco Webex Network Recording Player for Advanced Recording Format (ARF) and Webex Recording Format (WRF) files due to insufficient input validation. A remote unauthenticated attacker can supply a specially crafted .arf or .wrf file via email or URL, thick the victim into launching it in the Webex recording players and execute arbitrary code with elevated privileges.

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

Mitigation
Update Cisco Webex Network Recording Player and Cisco Webex Player for Cisco Webex Meetings Suite to version 31.23, 32.15, 33.2 and later.
Update Webex Network Recording Player and WebEx Player for Cisco Webex Meetings Online to version 1.3.35 and later.
Update Webex Network Recording Player for Cisco Webex Meetings Server to version 3.0MR1 and later.

Vulnerable software versions

Webex Player: All versions

Cisco WebEx Network Recording Player: All versions

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External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180718-webex-rce

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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.