Home/CVE/When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Lengt
CVE

CVE-2018-17194

When a client request to a cluster node was replicated to other nodes in the cluster for verification, the Content-Lengt

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.

HIGH · CVSS 7.5 EPSS 0.01309
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

1
apache nifi>= 1.0.0 and <= 1.7.1
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.apache.nifi:nifi-framework-cluster HIGH fixed in 1.8.0
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · security@apache.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Dec 2018 · 02:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://nifi.apache.org/security.html#CVE-2018-17194Vendor Advisory
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