CVE-2020-13931

Tomee vulnerability

CVSS

9.8

EPSS

3.7%

EPSS pct

88th

Exploited

No known

If Apache TomEE 8.0.0-M1 - 8.0.3, 7.1.0 - 7.1.3, 7.0.0-M1 - 7.0.8, 1.0.0 - 1.7.5 is configured to use the embedded ActiveMQ broker, and the broker config is misconfigured, a JMX port is opened on TCP port 1099, which does not include authentication. CVE-2020-11969 previously addressed the creation of the JMX management interface, however the incomplete fix did not cover this edge case.

Affected vendor

Apache

Affected product

Tomee

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Published

2020-12-18

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 3.7% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 88% of all scored CVEs.

Check your external exposure to CVE-2020-13931

Confirm whether Apache Tomee is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2020-13931.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2020-13931

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2020-13931 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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