PT-2020-15193 · Apache · Apache Flink

Colm O Heigeartaigh + 1 · Published 2020-05-14 · Updated 2024-03-06 · CVE-2020-1960

Positive Technologies (AI Summary)

CVSS v3.1

4.7

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Apache Flink versions 1.1.0 through 1.1.5 Apache Flink versions 1.2.0 through 1.2.1 Apache Flink versions 1.3.0 through 1.3.3 Apache Flink versions 1.4.0 through 1.4.2 Apache Flink versions 1.5.0 through 1.5.6 Apache Flink versions 1.6.0 through 1.6.4 Apache Flink versions 1.7.0 through 1.7.2 Apache Flink versions 1.8.0 through 1.8.3 Apache Flink versions 1.9.0 through 1.9.2 Apache Flink version 1.10.0

Description A vulnerability exists in Apache Flink where 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. The attack is possible when running a process with an enabled JMXReporter, with a port configured via metrics.reporter.reporter name>.port.

Recommendations For Apache Flink versions 1.1.0 through 1.1.5, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.2.0 through 1.2.1, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.3.0 through 1.3.3, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.4.0 through 1.4.2, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.5.0 through 1.5.6, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.6.0 through 1.6.4, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.7.0 through 1.7.2, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.8.0 through 1.8.3, consider disabling the JMXReporter until a patch is available. For Apache Flink versions 1.9.0 through 1.9.2, consider disabling the JMXReporter until a patch is available. For Apache Flink version 1.10.0, consider disabling the JMXReporter until a patch is available.

Exploit

Fix

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

BIT-FLINK-2020-1960

CVE-2020-1960

GHSA-6G88-99WJ-8MGG

Affected Products

Apache Flink

References · 12

• 🔥 https://lists.apache.org/thread.html/r663cf0d5c386bba2f562d45ad484d786151a84f0b95e45e2b0fb8e50@%3Cissues.flink.apache.org%3E · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-1960 · Security Note
• https://osv.dev/vulnerability/BIT-flink-2020-1960 · Vendor Advisory
• https://lists.apache.org/thread.html/r23e559dee1e69741557b5fe431846de1f1a5981356d0ddb9482df88a%40%3Cdev.flink.apache.org%3E · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-6g88-99wj-8mgg · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-1960 · Vendor Advisory
• https://lists.apache.org/thread.html/r28f17e564950d663e68cc6fe75756012dda62ac623766bb9bc5e7034@%3Cissues.flink.apache.org%3E · Note
• https://lists.apache.org/thread.html/r663cf0d5c386bba2f562d45ad484d786151a84f0b95e45e2b0fb8e50%40%3Cissues.flink.apache.org%3E · Note
• https://t.me/cvenotify/10691 · Telegram Post
• https://lists.apache.org/thread.html/r26fcdd4fe288323006253437ebc4dd6fdfadfb5e93465a0e4f68420d%40%3Cuser-zh.flink.apache.org%3E · Note
• https://lists.apache.org/thread.html/r26fcdd4fe288323006253437ebc4dd6fdfadfb5e93465a0e4f68420d@%3Cuser-zh.flink.apache.org%3E · Note
• https://lists.apache.org/thread.html/r28f17e564950d663e68cc6fe75756012dda62ac623766bb9bc5e7034%40%3Cissues.flink.apache.org%3E · Note