Bug 1913312 (CVE-2020-17518) - CVE-2020-17518 apache-flink: directory traversal attack allows remote file writing through the REST API
Summary: CVE-2020-17518 apache-flink: directory traversal attack allows remote file wr...
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2020-17518
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks: 1913313
TreeView+ depends on / blocked
 
Reported: 2021-01-06 13:48 UTC by Guilherme de Almeida Suckevicz
Modified: 2021-08-18 09:55 UTC (History)
13 users (show)

Fixed In Version: flink-1.11.3, flink-1.12.0
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Clone Of:
Environment:
Last Closed: 2021-08-11 19:28:55 UTC
Embargoed:


Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2021:3140 0 None None None 2021-08-11 18:23:46 UTC
Red Hat Product Errata RHSA-2021:3205 0 None None None 2021-08-18 09:13:36 UTC
Red Hat Product Errata RHSA-2021:3207 0 None None None 2021-08-18 09:55:02 UTC

Description Guilherme de Almeida Suckevicz 2021-01-06 13:48:20 UTC
Apache Flink 1.5.1 introduced a REST handler that allows you to write an uploaded file to an arbitrary location on the local file system, through a maliciously modified HTTP HEADER. The files can be written to any location accessible by Flink 1.5.1. 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 a5264a6f41524afe8ceadf1d8ddc8c80f323ebc4 from apache/flink:master.

References:
https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261@%3Cannounce.apache.org%3E
https://www.openwall.com/lists/oss-security/2021/01/05/1

Comment 4 errata-xmlrpc 2021-08-11 18:23:44 UTC
This issue has been addressed in the following products:

  Red Hat Fuse 7.9

Via RHSA-2021:3140 https://access.redhat.com/errata/RHSA-2021:3140

Comment 5 Product Security DevOps Team 2021-08-11 19:28:55 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-17518

Comment 6 errata-xmlrpc 2021-08-18 09:13:34 UTC
This issue has been addressed in the following products:

  Red Hat Integration

Via RHSA-2021:3205 https://access.redhat.com/errata/RHSA-2021:3205

Comment 7 errata-xmlrpc 2021-08-18 09:55:00 UTC
This issue has been addressed in the following products:

  Red Hat Integration

Via RHSA-2021:3207 https://access.redhat.com/errata/RHSA-2021:3207


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