Privilege escalation in Cisco Webex Meetings Suite and Cisco WebEx Meetings Server - CVE-2018-0422
Published: September 5, 2018 / Updated: September 6, 2018
Vulnerability identifier: #VU14676
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-0422
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Webex Meetings Suite
Cisco WebEx Meetings Server
Cisco Webex Meetings Suite
Cisco WebEx Meetings Server
Detailed vulnerability description
The vulnerability allows a local attacker to gain elevated privileges on the target system.
The vulnerability exists in the folder permissions due to folder permissions that grant a user the permission to read, write, and execute files in the Webex folders. A local attacker can write malicious files to the Webex client directory, affecting all other users of the targeted device and execute commands with elevated privileges.
How to mitigate CVE-2018-0422
Update Cisco Webex Meetings Suite to version 32.15.20 or 33.4.
Update Cisco Webex Meeting Server to version 3.0MR2.
Update Cisco Webex Meeting Server to version 3.0MR2.