Vulnerability in Apache Flink
CVE-2020-17519
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 t…
EPSS: 0.979 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
- Apache Flink
- Apache Software Foundation Flink — versions Apache Flink 1.11.0 to 1.11.2
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Public proof-of-concept exploits
- MrCl0wnLab/SimplesApachePathTraversal
- B1anda0/CVE-2020-17519
- murataydemir/CVE-2020-17519
- dolevf/apache-flink-directory-traversal.nse
- givemefivw/CVE-2020-17519
- yaunsky/CVE-2020-17519-Apache-Flink
- QmF0c3UK/CVE-2020-17519
- shoucheng3/apache__flink_CVE-2020-17519_1-11-2
- dev-team-12x/CVE-2020-17519
- GazettEl/CVE-2020-17519
References
- security@apache.org (Mailing List, x_refsource_MISC, Vendor Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Issue Tracking)
- security@apache.org (Vendor Advisory, mailing-list, x_refsource_MLIST, Mailing List)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- security@apache.org (mailing-list, x_refsource_MLIST, Issue Tracking)
- security@apache.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- security@apache.org (mailing-list, x_refsource_MLIST, Issue Tracking)
- security@apache.org (Vendor Advisory, mailing-list, x_refsource_MLIST, Mailing List)
- security@apache.org (mailing-list, x_refsource_MLIST, Mailing List)
- security@apache.org (Vendor Advisory, mailing-list, x_refsource_MLIST, Mailing List)
Frequently asked questions
- What is CVE-2020-17519?
- CVE-2020-17519 is a high-severity vulnerability in Apache Flink, classified under Files or Directories Accessible to External Parties. CVSS score: 7.5/10. Published 2021-01-05.
- How severe is CVE-2020-17519?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-17519 known to be exploited?
- Yes. CVE-2020-17519 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-05-23), indicating it is being actively exploited. 120 public proof-of-concept repositories are indexed.