#VU20873 OS command injection in Cisco Webex Teams


Published: 2019-09-05 | Updated: 2019-09-05

Vulnerability identifier: #VU20873

Vulnerability 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-2019-1939

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Webex Teams
Client/Desktop applications / Office applications

Vendor: Cisco Systems, Inc

Description

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

The vulnerability exists due to improper restrictions on software logging features used by the application on Windows operating systems. A remote attacker can trick a victim to visit a website designed to submit malicious input to the affected application, cause the application to modify files and execute arbitrary commands on the system with the privileges of the current user.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Teams: 2.0.4167 - 3.0.11110.0

External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190904-webex-teams

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.


Latest bulletins with this vulnerability


Remote command execution in Cisco Webex Teams