THREATPORT/VULNERABILITY/CVE-2018-17191
CRITICAL SEVERITY

CVE-2018-17191

Netbeans vulnerability

CVSS
9.8
EPSS
7.8%
EPSS pct
94th
Exploited
No known
Apache NetBeans (incubating) 9.0 NetBeans Proxy Auto-Configuration (PAC) interpretation is vulnerable for remote command execution (RCE). Using the nashorn script engine the environment of the javascript execution for the Proxy Auto-Configuration leaks privileged objects, that can be used to circumvent the execution limits. If a different script engine was used, no execution limits were in place. Both vectors allow remote code execution.
Affected vendor
Apache
Affected product
Netbeans
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2018-12-31

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, high impact to availability.

Its EPSS score of 7.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 94% of all scored CVEs.

Check your external exposure to CVE-2018-17191

  • Confirm whether Apache Netbeans is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-17191.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-17191

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-17191 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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