CVE-2018-17194: Input Validation
First published: Wed Dec 19 2018(Updated: )
When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Length was forwarded. On a DELETE request, the body was ignored, but if the initial request had a Content-Length value other than 0, the receiving nodes would wait for the body and eventually timeout. Mitigation: The fix to check DELETE requests and overwrite non-zero Content-Length header values was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release.
Credit: security@apache.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| maven/org.apache.nifi:nifi-framework-cluster | >=1.0.0<=1.7.1 | 1.8.0 |
| Apache NiFi | >=1.0.0<=1.7.1 |
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Reference Links
- https://nifi.apache.org/security.html#CVE-2018-17194
- https://nvd.nist.gov/vuln/detail/CVE-2018-17194
- https://github.com/apache/nifi/commit/1baead6f525046a613fc4fe494a0d193776ea70f
- https://github.com/apache/nifi/commit/748cf745628dab20b7e71f12b5dcfe6ed0bbf134
- https://issues.apache.org/jira/browse/NIFI-5628
- https://github.com/advisories/GHSA-43fp-vwwg-qgv6 (Advisory)
Frequently Asked Questions
What is CVE-2018-17194?
CVE-2018-17194 is a vulnerability in Apache NiFi where the Content-Length value was forwarded when replicating client requests to other nodes in the cluster.
What is the severity of CVE-2018-17194?
The severity of CVE-2018-17194 is high with a CVSS score of 7.5.
How does CVE-2018-17194 affect Apache NiFi?
CVE-2018-17194 affects Apache NiFi versions between 1.0.0 and 1.7.1.
How can I fix CVE-2018-17194?
To fix CVE-2018-17194, upgrade to Apache NiFi version 1.8.0 or higher.
Where can I find more information about CVE-2018-17194?
More information about CVE-2018-17194 can be found at the NIST NVD website, Apache NiFi security advisory, and the GitHub commit.
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