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.

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

AV:N/AC:L/Au:N/C:N/I:P/A:N

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Apache
  • Flink
Redhat
  • Camel Quarkus
  • Integration
  • Jboss Fuse

Configuration 1 [-]

cpe:2.3:a:apache:flink:*:*:*:*:*:*:*:*
Package CPE Advisory Released Date
Red Hat Fuse 7.9
flink cpe:/a:redhat:jboss_fuse:7 RHSA-2021:3140 2021-08-11T00:00:00Z
Red Hat Integration
flink cpe:/a:redhat:integration:1 RHSA-2021:3205 2021-08-18T00:00:00Z
Red Hat Integration Camel Quarkus
flink cpe:/a:redhat:camel_quarkus:2 RHSA-2021:3207 2021-08-18T00:00:00Z
References
Link Providers
http://www.openwall.com/lists/oss-security/2021/01/05/1 cve-icon cve-icon
https://lists.apache.org/thread.html/r0b000dc028616d33cb9aa388eb45d516b789cab0024dad94bc06588a%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r1125f3044a0946d1e7e6f125a6170b58d413ebd4a95157e4608041c7%40%3Cannounce.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r229167538863518738e02f4c1c5a8bb34c1d45dadcc97adf6676b0c1%40%3Cdev.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r26fcdd4fe288323006253437ebc4dd6fdfadfb5e93465a0e4f68420d%40%3Cuser-zh.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r28f17e564950d663e68cc6fe75756012dda62ac623766bb9bc5e7034%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r4a87837518804b31eb9db3048347ed2bb7b46fbaad5844f22a9fd4dc%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r5444acac3407ef6397d6aef1b5aec2db53b4b88ef221e63084c1e5f2%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r705fb2211b82c9f1f8d2b1d4c823bcbca50402ba09b96608ec657efe%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r710693b0d3b229c81f485804ea1145b4edda79c9e77d66c39a0a2ff1%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r7b2ee88c66fc1d0823e66475631f5c3e7f0365204ff0cb094d9f2433%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r8167f30c4c60a11b8d5be3f55537beeda629be61196e693bde403b36%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r88200d2f0b620c6b4b1585a7171355005c89e678b01d0e71a16c57e7%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/r90890afea72a9571d666820b2fe5942a0a5f86be406fa31da3dd0922%40%3Cannounce.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/ra8c96bf3ccb4e491f9ce87ba35f134b4449beb2a38d1ce28fd89001f%40%3Cdev.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261%40%3Cannounce.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261%40%3Cdev.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rb43cd476419a48be89c1339b527a18116f23eec5b6df2b2acbfef261%40%3Cuser.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rcb9e8af775f2a3706b69153aefde78f208871649df057c70ce2e24f9%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd2467344f88bcaf108b8209ca92da8ec393c68174bfb8c27d1e20faa%40%3Cdev.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rd6a1a0e2d73220a65a8f6535bbcd24bb66adb0d046c4a1aa18777cf3%40%3Cdev.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rec0d650fbd4ea1a5e1224a347d83a63cb44291c334ad58b8809bc23b%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rf8812a5703f4a5f1341138baf239258b250875699732cfdf9d55b21d%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://lists.apache.org/thread.html/rfe159ccf496d75813f24c6079c5d33872d83f5a2e39cb32c3aef5a73%40%3Cissues.flink.apache.org%3E cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2020-17518 cve-icon
https://www.cve.org/CVERecord?id=CVE-2020-17518 cve-icon
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published: 2021-01-05T11:40:13

Updated: 2024-08-04T14:00:48.660Z

Reserved: 2020-08-12T00:00:00

Link: CVE-2020-17518

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2021-01-05T12:15:12.367

Modified: 2023-11-07T03:19:12.540

Link: CVE-2020-17518

cve-icon Redhat

Severity : Moderate

Publid Date: 2021-01-05T00:00:00Z

Links: CVE-2020-17518 - Bugzilla