Vulnerability Details : CVE-2018-0422
A vulnerability in the folder permissions of Cisco Webex Meetings client for Windows could allow an authenticated, local attacker to modify locally stored files and execute code on a targeted device with the privilege level of the user. The vulnerability is due to folder permissions that grant a user the permission to read, write, and execute files in the Webex folders. An attacker could exploit this vulnerability to write malicious files to the Webex client directory, affecting all other users of the targeted device. A successful exploit could allow a user to execute commands with elevated privileges. Attacks on single-user systems are less likely to occur, as the attack must be carried out by the user on the user's own system. Multiuser systems have a higher risk of exploitation because folder permissions have an impact on all users of the device. For an attacker to exploit this vulnerability successfully, a second user must execute the locally installed malicious file to allow remote code execution to occur.
Vulnerability category: Execute code
Products affected by CVE-2018-0422
- cpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_meetings_server:3.0:mr1:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_meetings_online:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_meetings_online:t31.20.2:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_meetings_online:t31.20:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_business_suite_32:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_business_suite_33:*:*:*:*:*:*:*:*
- cpe:2.3:a:cisco:webex_business_suite_31:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-0422
0.60%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 79 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-0422
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.9
|
MEDIUM | AV:L/AC:M/Au:N/C:C/I:C/A:C |
3.4
|
10.0
|
NIST | |
7.3
|
HIGH | CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H |
1.3
|
5.9
|
NIST |
CWE ids for CVE-2018-0422
-
The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.Assigned by: nvd@nist.gov (Primary)
References for CVE-2018-0422
-
http://www.securitytracker.com/id/1041681
Cisco WebEx Meetings Server Windows-Based Folder Permissions Lets Local Users Obtain System Privileges - SecurityTrackerThird Party Advisory;VDB Entry
-
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-webex-pe
Cisco Webex Meetings Client for Windows Privilege Escalation VulnerabilityVendor Advisory
-
http://www.securityfocus.com/bid/105281
Cisco Webex Meetings Client CVE-2018-0422 Local Privilege Escalation VulnerabilityThird Party Advisory;VDB Entry
Jump to