THREATPORT/VULNERABILITY/CVE-2018-8780
CRITICAL SEVERITY

CVE-2018-8780

Ruby vulnerability

CVSS
9.1
EPSS
10.1%
EPSS pct
95th
Exploited
No known
In Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1, the Dir.open, Dir.new, Dir.entries and Dir.empty? methods do not check NULL characters. When using the corresponding method, unintentional directory traversal may be performed.
Affected vendor
Ruby Lang
Affected product
Ruby
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Weakness type (CWE)
Published
2018-04-03

Risk analysis

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

Its EPSS score of 10.1% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 95% of all scored CVEs.

Check your external exposure to CVE-2018-8780

  • Confirm whether Ruby Lang Ruby is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-8780.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-8780

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-8780 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

Run a free external exposure scan

Are you exposed to CVE-2018-8780?

Run an instant, non-intrusive external scan to check your attack surface for CVE-2018-8780.

Start free scan

No credit card. Agentless.

Related vulnerabilities

CRITICAL
CVE-2021-3781
Ghostscript vulnerability
CRITICAL
CVE-2022-25075
A3000ru Firmware vulnerability
CRITICAL
CVE-2022-25148
Wp Statistics vulnerability