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  5. CVE-2020-1960

CVE-2020-1960: Injection Vulnerability

May 14, 2020 (updated July 21, 2021)

When running a process with an enabled JMXReporter, with a port configured via metrics.reporter.reporter_name > .port, an attacker with local access to the machine and JMX port can execute a man-in-the-middle attack using a specially crafted request to rebind the JMXRMI registry to one under the attacker’s control. This compromises any connection established to the process via JMX, allowing extraction of credentials and any other transferred data.

References

  • nvd.nist.gov/vuln/detail/CVE-2020-1960

Code Behaviors & Features

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Affected versions

All versions starting from 1.1.0 up to 1.1.5, all versions starting from 1.2.0 up to 1.2.1, all versions starting from 1.3.0 up to 1.3.3, all versions starting from 1.4.0 up to 1.4.2, all versions starting from 1.5.0 up to 1.5.6, all versions starting from 1.6.0 up to 1.6.4, all versions starting from 1.7.0 up to 1.7.2, all versions starting from 1.8.0 up to 1.8.3, all versions starting from 1.9.0 up to 1.9.2, version 1.10.0

Fixed versions

  • 1.1.5-hadoop1
  • 1.9.3
  • 1.10.1

Solution

Upgrade to versions 1.1.5-hadoop1, 1.9.3, 1.10.1 or above.

Impact 4.7 MEDIUM

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

Learn more about CVSS

Weakness

  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

Source file

maven/org.apache.flink/flink-metrics-core/CVE-2020-1960.yml

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