BIT-flink-2020-1960

    Dashboard / Vulnerabilities / BIT-flink-2020-1960

    BIT-flink-2020-1960

    Published: 6 Mar 2024Last Modified: 8 Sept 2026

    Summary:

    Details: A vulnerability in Apache Flink (1.1.0 to 1.1.5, 1.2.0 to 1.2.1, 1.3.0 to 1.3.3, 1.4.0 to 1.4.2, 1.5.0 to 1.5.6, 1.6.0 to 1.6.4, 1.7.0 to 1.7.2, 1.8.0 to 1.8.3, 1.9.0 to 1.9.2, 1.10.0) where, 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: https://lists.apache.org/thread.html/r23e559dee1e69741557b5fe431846de1f1a5981356d0ddb9482df88a%40%3Cdev.flink.apache.org%3E, https://lists.apache.org/thread.html/r26fcdd4fe288323006253437ebc4dd6fdfadfb5e93465a0e4f68420d%40%3Cuser-zh.flink.apache.org%3E, https://lists.apache.org/thread.html/r28f17e564950d663e68cc6fe75756012dda62ac623766bb9bc5e7034%40%3Cissues.flink.apache.org%3E, https://lists.apache.org/thread.html/r663cf0d5c386bba2f562d45ad484d786151a84f0b95e45e2b0fb8e50%40%3Cissues.flink.apache.org%3E, https://nvd.nist.gov/vuln/detail/CVE-2020-1960

    Affected packages

    Package

    Name: flink

    Purl: pkg:bitnami/flink

    Affected ranges

    Type: SEMVER

    Events:

    Introduced- 1.1.0
    Fixed -1.1.6

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    BIT-flink-2020-1960 | CVE-DB