CVE-2017-12632: Nifi Apache NiFi Host Header Poisoning Vulnerability

HIGH
Advisory Identifier: GHSA-w4x6-j349-9r57
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CVSS 7.5
CWE-20
Published
Advisory Summary

CVE-2017-12632 is a HIGH (CVSS 7.5) apache nifi host header poisoning vulnerability (CWE-20: Improper Input Validation) affecting Nifi libraries in the Maven ecosystem. The issue involves apache nifi host header poisoning issue. Remediation is available by upgrading affected packages to version 1.5.0.

CVE-2017-12632 at a Glance

CVE Identifier CVE-2017-12632
GHSA Identifier GHSA-w4x6-j349-9r57
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-20: Improper Input Validation
Affected Product Nifi
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:H/A:N).

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 High (I:H)
Availability None (A:N)

How to Fix CVE-2017-12632

To remediate this vulnerability, upgrade all affected Nifi 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 fixed: 1.5.0 
<dependency>
    <groupId>org.apache.nifi</groupId>
    <artifactId>nifi</artifactId>
    <version>1.5.0</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-2017-12632, 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 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.5.0), 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, 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

A malicious host header in an incoming HTTP request could cause NiFi to load resources from an external server. The fix to sanitize host headers and compare to a controlled whitelist was applied on the Apache NiFi 1.5.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

CVE-2017-12632 Affected Nifi Versions

1 component(s)
Fixed Versions:
1.5.0
Product / Package Ecosystem Affected Versions Fixed Version
org.apache.nifi:nifi
maven/org.apache.nifi/nifi
Maven
≥ 1.0.0
< 1.5.0
1.5.0

References

NVD — CVE-2017-12632 NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-12632
Nifi Security Information SECURITY
https://nifi.apache.org/security.html#CVE-2017-12632

Frequently Asked Questions

What is CVE-2017-12632?
CVE-2017-12632 is a security vulnerability in Nifi involving Apache NiFi host header poisoning issue under CWE-20: Improper Input Validation.
Which Nifi versions are affected?
Affected versions include releases prior to 1.5.0 across affected packages: org.apache.nifi:nifi.
What version fixes CVE-2017-12632?
Upgrading to 1.5.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is nifi affected?
Yes, org.apache.nifi:nifi is affected in releases prior to 1.5.0. Upgrade your dependency to 1.5.0 or later.
What is the CVSS score of CVE-2017-12632?
CVE-2017-12632 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:H/A:N.
What CWE is associated with CVE-2017-12632?
CVE-2017-12632 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-2017-12632?
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-w4x6-j349-9r57",
  "modified" : "2022-11-01T21:58:49Z",
  "published" : "2022-05-14T03:45:20Z",
  "aliases" : [ "CVE-2017-12632" ],
  "summary" : "Apache NiFi host header poisoning issue",
  "details" : "A malicious host header in an incoming HTTP request could cause NiFi to load resources from an external server. The fix to sanitize host headers and compare to a controlled whitelist was applied on the Apache NiFi 1.5.0 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:H/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.apache.nifi:nifi"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "1.0.0"
      }, {
        "fixed" : "1.5.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2017-12632"
  }, {
    "type" : "WEB",
    "url" : "https://nifi.apache.org/security.html#CVE-2017-12632"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-20" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2022-11-01T21:58:49Z",
    "nvd_published_at" : "2018-01-23T22:29:00Z"
  }
}