7.5high

CVE-2020-3263

Cisco Webex Meetings Desktop App URL Filtering Arbitrary Program Execution Vulnerability

Published 6 y ago · modified 4 mo ago · JSON

CVSS
7.5
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
4.2%
percentile 91%
Public exploits
0
none known

Summary

A vulnerability in Cisco Webex Meetings Desktop App could allow an unauthenticated, remote attacker to execute programs on an affected end-user system. The vulnerability is due to improper validation of input that is supplied to application URLs. The attacker could exploit this vulnerability by persuading a user to follow a malicious URL. A successful exploit could allow the attacker to cause the application to execute other programs that are already present on the end-user system. If malicious files are planted on the system or on an accessible network file path, the attacker could execute arbitrary code on the affected system.

CISA SSVC assessment

Exploitation
none
Automatable
no
Technical impact
total
Assessed
23 mo ago

Exploit prediction (EPSS)

4.22% probability of exploitation in the next 30 days, higher than 91% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.07.5CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD3.17.5CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA3.07.5CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD2.07.6AV:N/AC:H/Au:N/C:C/I:C/A:C

Affected products

  • Cisco Cisco WebEx Meetings Server

Classification

Weakness
  • CWE-20 Improper Input Validation

References

  • tools.cisco.com /security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-client-url-fcmpdfVY · vendor-advisory, x_refsource_CISCO, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.