CVE-2018-17194: Nifi framework cluster Apache NiFi Improper Input Validation Vulnerability

HIGH
Advisory Identifier: GHSA-43fp-vwwg-qgv6
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CVSS 7.5
CWE-20
Published
Advisory Summary

CVE-2018-17194 is a HIGH (CVSS 7.5) apache nifi improper input validation vulnerability (CWE-20: Improper Input Validation) affecting Nifi framework cluster libraries in the Maven ecosystem. The issue involves apache nifi improper input validation vulnerability. Remediation is available by upgrading affected packages to version 1.8.0.

CVE-2018-17194 at a Glance

CVE Identifier CVE-2018-17194
GHSA Identifier GHSA-43fp-vwwg-qgv6
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-20: Improper Input Validation
Affected Product Nifi framework cluster
Package Ecosystem Maven
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2018-17194

To remediate this vulnerability, upgrade all affected Nifi framework cluster dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.apache.nifi:nifi-framework-cluster fixed: 1.8.0 
<dependency>
    <groupId>org.apache.nifi</groupId>
    <artifactId>nifi-framework-cluster</artifactId>
    <version>1.8.0</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.apache.nifi

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2018-17194, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.apache.nifi

Analyze the terminal output to locate any version of Nifi framework cluster in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.8.0), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.apache.nifi command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Nifi framework cluster, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

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.

CVE-2018-17194 Affected Nifi framework cluster Versions

1 component(s)
Fixed Versions:
1.8.0
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.nifi:nifi-framework-cluster
maven/org.apache.nifi/nifi-framework-cluster
Maven
≥ 1.0.0
< 1.8.0
1.8.0

References

NVD — CVE-2018-17194 NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-17194
Security Fix Commit FIX COMMIT
https://github.com/apache/nifi/commit/1baead6f525046a613fc4fe494a0d193776ea70f
Security Fix Commit FIX COMMIT
https://github.com/apache/nifi/commit/748cf745628dab20b7e71f12b5dcfe6ed0bbf134
Nifi framework cluster Source Repository REPOSITORY
https://github.com/apache/nifi
issues.apache.org/jira/browse/nifi-56... WEB
https://issues.apache.org/jira/browse/NIFI-5628
Nifi framework cluster Security Information SECURITY
https://nifi.apache.org/security.html#CVE-2018-17194

Frequently Asked Questions

What is CVE-2018-17194?
CVE-2018-17194 is a security vulnerability in Nifi framework cluster involving Apache NiFi Improper Input Validation vulnerability under CWE-20: Improper Input Validation.
Which Nifi framework cluster versions are affected?
Affected versions include releases prior to 1.8.0 across affected packages: org.apache.nifi:nifi-framework-cluster.
What version fixes CVE-2018-17194?
Upgrading to 1.8.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nifi-framework-cluster affected?
Yes, org.apache.nifi:nifi-framework-cluster is affected in releases prior to 1.8.0. Upgrade your dependency to 1.8.0 or later.
What is the CVSS score of CVE-2018-17194?
CVE-2018-17194 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2018-17194?
CVE-2018-17194 is classified under CWE-20: Improper Input Validation (The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.).
How can I check Maven dependencies for CVE-2018-17194?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.apache.nifi'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-43fp-vwwg-qgv6",
  "modified" : "2024-03-04T21:40:53Z",
  "published" : "2018-12-20T22:02:32Z",
  "aliases" : [ "CVE-2018-17194" ],
  "summary" : "Apache NiFi Improper Input Validation vulnerability",
  "details" : "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.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.nifi:nifi-framework-cluster"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.0"
      }, {
        "fixed" : "1.8.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 1.7.1"
    }
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2018-17194"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/nifi/commit/1baead6f525046a613fc4fe494a0d193776ea70f"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/nifi/commit/748cf745628dab20b7e71f12b5dcfe6ed0bbf134"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/nifi"
  }, {
    "type" : "WEB",
    "url" : "https://issues.apache.org/jira/browse/NIFI-5628"
  }, {
    "type" : "WEB",
    "url" : "https://nifi.apache.org/security.html#CVE-2018-17194"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2020-06-16T20:57:07Z",
    "nvd_published_at" : null
  }
}