CVE-2020-17519

Summary

A change introduced in Apache Flink 1.11.0 (and released in 1.11.1 and 1.11.2 as well) allows attackers to read any file on the local filesystem of the JobManager through the REST interface of the JobManager process. Access is restricted to files accessible by the JobManager process. All users should upgrade to Flink 1.11.3 or 1.12.0 if their Flink instance(s) are exposed. The issue was fixed in commit b561010b0ee741543c3953306037f00d7a9f0801 from apache/flink:master.

Affected Software

VendorProductVersion RangeStatus
Apache Software FoundationApache FlinkApache Flink 1.11.0 to 1.11.2affected

Weaknesses

  • CWE-552: CWE-552 Files or Directories Accessible to External Parties

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: active
    • Automatable: yes
    • Technical Impact: partial

Additional References

CVE Program Container

Additional References

References