THREATPORT/VULNERABILITY/CVE-2018-0420
MEDIUM SEVERITY

CVE-2018-0420

Wireless Lan Controller Software vulnerability

CVSS
6.5
EPSS
4.6%
EPSS pct
91th
Exploited
No known
A vulnerability in the web-based interface of Cisco Wireless LAN Controller Software could allow an authenticated, remote attacker to view sensitive information. The issue is due to improper sanitization of user-supplied input in HTTP request parameters that describe filenames and pathnames. An attacker could exploit this vulnerability by using directory traversal techniques to submit a path to a desired file location. A successful exploit could allow the attacker to view system files on the targeted device, which may contain sensitive information.
Affected vendor
Cisco
Affected product
Wireless Lan Controller Software
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness type (CWE)
Published
2018-10-17

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality.

Its EPSS score of 4.6% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 91% of all scored CVEs.

Check your external exposure to CVE-2018-0420

  • Confirm whether Cisco Wireless Lan Controller Software is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-0420.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-0420

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-0420 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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