THREATPORT/VULNERABILITY/CVE-2018-15442
HIGH SEVERITY

CVE-2018-15442

Webex Meetings Desktop vulnerability

CVSS
7.8
EPSS
16.0%
EPSS pct
97th
Exploited
No known
A vulnerability in the update service of Cisco Webex Meetings Desktop App for Windows could allow an authenticated, local attacker to execute arbitrary commands as a privileged user. The vulnerability is due to insufficient validation of user-supplied parameters. An attacker could exploit this vulnerability by invoking the update service command with a crafted argument. An exploit could allow the attacker to run arbitrary commands with SYSTEM user privileges. While the CVSS Attack Vector metric denotes the requirement for an attacker to have local access, administrators should be aware that in Active Directory deployments, the vulnerability could be exploited remotely by leveraging the operating system remote management tools.
Affected vendor
Cisco
Affected product
Webex Meetings Desktop
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-78 — OS Command Injection
Published
2018-10-24

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable with local access, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 16.0% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-15442

  • Confirm whether Cisco Webex Meetings Desktop is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-15442.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-15442

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-15442 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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